ATHLON HOLDINGS LP and ATHLON FINANCE CORP. as Issuers and the Guarantors party hereto from time to time 6.000% Senior Notes due 2022

Exhibit 4.1

EXECUTION VERSION

ATHLON HOLDINGS LP

and

ATHLON FINANCE CORP.

as Issuers

and the Guarantors party hereto from time to time

6.000% Senior Notes due 2022

INDENTURE

Dated as of May 1, 2014

and

Xxxxx Fargo Bank, National Association

as Trustee

TABLE OF CONTENTS

		Page
ARTICLE I

DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.01	Definitions	1
SECTION 1.02	Other Definitions	44
SECTION 1.03	Rules of Construction	46

ARTICLE II

THE NOTES

SECTION 2.01	Amount of Notes	46
SECTION 2.02	Form and Dating	47
SECTION 2.03	Execution and Authentication	48
SECTION 2.04	Registrar and Paying Agent	48
SECTION 2.05	Paying Agent to Hold Money in Trust	49
SECTION 2.06	Holder Lists	49
SECTION 2.07	Transfer and Exchange	49
SECTION 2.08	Replacement Notes	50
SECTION 2.09	Outstanding Notes	51
SECTION 2.10	Cancellation	51
SECTION 2.11	Defaulted Interest	51
SECTION 2.12	CUSIP Numbers, ISINs, Etc.	52
SECTION 2.13	Calculation of Principal Amount of Notes	52

ARTICLE III

REDEMPTION

SECTION 3.01	Redemption	52
SECTION 3.02	Applicability of Article	52
SECTION 3.03	Notices to Trustee	52
SECTION 3.04	Selection of Notes to Be Redeemed	53
SECTION 3.05	Notice of Optional Redemption	53
SECTION 3.06	Effect of Notice of Redemption	54
SECTION 3.07	Deposit of Redemption Price	54
SECTION 3.08	Notes Redeemed in Part	55
SECTION 3.09	Special Redemption	55

ARTICLE IV

COVENANTS

SECTION 4.01	Payment of Notes	55
SECTION 4.02	Reports and Other Information	56
SECTION 4.03	Limitation on Incurrence of Indebtedness and Issuance of Disqualified Stock and Preferred Stock	58
SECTION 4.04	Limitation on Restricted Payments	64

TABLE OF CONTENTS
(cont’d)

		Page

SECTION 4.05	Dividend and Other Payment Restrictions Affecting Subsidiaries	71
SECTION 4.06	Asset Sales	73
SECTION 4.07	Transactions with Affiliates	76
SECTION 4.08	Change of Control	79
SECTION 4.09	Compliance Certificate	81
SECTION 4.10	Further Instruments and Acts	82
SECTION 4.11	Future Subsidiary Guarantors	82
SECTION 4.12	Liens	82
SECTION 4.13	[Intentionally Omitted]	83
SECTION 4.14	Maintenance of Office or Agency	83
SECTION 4.15	Covenant Suspension	83

ARTICLE V

SUCCESSOR COMPANY

SECTION 5.01	When Issuers May Merge or Transfer Assets	84

ARTICLE VI

DEFAULTS AND REMEDIES

SECTION 6.01	Events of Default	87
SECTION 6.02	Acceleration	89
SECTION 6.03	Other Remedies	89
SECTION 6.04	Waiver of Past Defaults	89
SECTION 6.05	Control by Majority	90
SECTION 6.06	Limitation on Suits	90
SECTION 6.07	Rights of the Holders to Receive Payment	90
SECTION 6.08	Collection Suit by Trustee	90
SECTION 6.09	Trustee May File Proofs of Claim	91
SECTION 6.10	Priorities	91
SECTION 6.11	Undertaking for Costs	91
SECTION 6.12	Waiver of Stay or Extension Laws	92

ARTICLE VII

TRUSTEE

SECTION 7.01	Duties of Trustee	92
SECTION 7.02	Rights of Trustee	93
SECTION 7.03	Individual Rights of Trustee	95
SECTION 7.04	Trustee’s Disclaimer	95
SECTION 7.05	Notice of Defaults	95
SECTION 7.06	Reports by Trustee to the Holders	96
SECTION 7.07	Compensation and Indemnity	96
SECTION 7.08	Replacement of Trustee	97

iii

TABLE OF CONTENTS
(cont’d)

		Page

SECTION 7.09	Successor Trustee by Merger	98
SECTION 7.10	Eligibility; Disqualification	98
SECTION 7.11	Preferential Collection of Claims Against the Issuers	98

ARTICLE VIII

DISCHARGE OF INDENTURE; DEFEASANCE

SECTION 8.01	Discharge of Liability on Notes; Defeasance	99
SECTION 8.02	Conditions to Defeasance	100
SECTION 8.03	Application of Trust Money	101
SECTION 8.04	Repayment to Issuer	102
SECTION 8.05	Indemnity for U.S. Government Obligations	102
SECTION 8.06	Reinstatement	102

ARTICLE IX

AMENDMENTS AND WAIVERS

SECTION 9.01	Without Consent of the Holders	102
SECTION 9.02	With Consent of the Holders	103
SECTION 9.03	Revocation and Effect of Consents and Waivers	104
SECTION 9.04	Notation on or Exchange of Notes	105
SECTION 9.05	Trustee to Sign Amendments	105
SECTION 9.06	Additional Voting Terms; Calculation of Principal Amount	105
SECTION 9.07	Compliance with the Trust Indenture Act	106

ARTICLE X

[INTENTIONALLY OMITTED]

ARTICLE XI

[INTENTIONALLY OMITTED]

ARTICLE XII

GUARANTEE

SECTION 12.01	Guarantee	106
SECTION 12.02	Limitation on Liability	108
SECTION 12.03	[Intentionally Omitted]	109
SECTION 12.04	Successors and Assigns	109
SECTION 12.05	No Waiver	109
SECTION 12.06	Modification	109
SECTION 12.07	Execution of Supplemental Indenture for Future Guarantors	109
SECTION 12.08	Non-Impairment	110

TABLE OF CONTENTS
(cont’d)

			Page

ARTICLE XIII

[INTENTIONALLY OMITTED]

ARTICLE XIV

MISCELLANEOUS

SECTION 14.01	Trust Indenture Act Controls		110
SECTION 14.02	Notices		110
SECTION 14.03	Communication by the Holders with Other Holders		111
SECTION 14.04	Certificate and Opinion as to Conditions Precedent		112
SECTION 14.05	Statements Required in Certificate or Opinion		112
SECTION 14.06	When Notes Disregarded		112
SECTION 14.07	Rules by Trustee, Paying Agent and Registrar		112
SECTION 14.08	Legal Holidays		113
SECTION 14.09	GOVERNING LAW		113
SECTION 14.10	No Recourse Against Others		113
SECTION 14.11	Successors		113
SECTION 14.12	Multiple Originals		113
SECTION 14.13	Table of Contents; Headings		113
SECTION 14.14	Indenture Controls		113
SECTION 14.15	Severability		113
SECTION 14.16	Waiver of Jury Trial		113

Appendix A	—	Provisions Relating to Initial Notes and Additional Notes

EXHIBIT INDEX

Exhibit A	—	Form of Initial Note
Exhibit B	—	[Intentionally Omitted]
Exhibit C	—	Form of Transferee Letter of Representation
Exhibit D	—	Form of Supplemental Indenture
Exhibit E	—	Form of Notation of Guarantee

CROSS-REFERENCE TABLE

TIA		Indenture
Section		Section
310	(a)(1)	7.10
	(a)(2)	7.10
	(a)(3)	7.10
	(a)(4)	7.10
	(b)	7.08; 7.10
	(c)	N.A.
311	(a)	7.11
	(b)	7.11
	(c)	N.A.
312	(a)	2.06
	(b)	14.03
	(c)	14.03
313	(a)	7.06
	(b)(1)	7.06
	(b)(2)	7.06
	(c)	7.06
	(d)	7.06
314	(a)	4.02; 4.09
	(b)	N.A.
	(c)(1)	14.04
	(c)(2)	14.04
	(c)(3)	N.A.
	(d)	N.A.
	(e)	14.05
	(f)	4.10
315	(a)	7.01
	(b)	7.05
	(c)	7.01
	(d)	7.01
	(e)	6.11
316	(a) (last sentence)	14.06
	(a)(1)(A)	6.05
	(a)(1)(B)	6.04
	(a)(2)	N.A.
	(b)	6.07
317	(a)(1)	6.08
	(a)(2)	6.09
	(b)	2.05
318	(a)	14.01

N.A. Means Not Applicable.

Note: This Cross-Reference Table shall not, for any purposes, be deemed to be part of this Indenture.

INDENTURE, dated as of May 1, 2014, among ATHLON HOLDINGS LP, a Delaware limited partnership (together with its successors and assigns, “Holdings”), ATHLON FINANCE CORP., a Delaware corporation (together with its successors and assigns, the “Co-Issuer” and, together with Holdings, the “Issuers”), the Guarantors party hereto from time to time (as defined below) and Xxxxx Fargo Bank, National Association, as trustee (the “Trustee”).

Each party agrees as follows for the benefit of the other parties and for the equal and ratable benefit of the holders of (i) $650,000,000 aggregate principal amount of the Issuers’ 6.000% Senior Notes due 2022 issued on the date hereof (the “Initial Notes”) and (ii) Additional Notes issued from time to time (together with the Initial Notes, the “Notes”):

ARTICLE I

DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.01 Definitions.

“2021 Senior Notes” means the Issuers’ 73/8% Senior Notes due 2021.

“Acquired Indebtedness” means, with respect to any specified Person:

(1) Indebtedness of any other Person existing at the time such other Person is merged, consolidated or amalgamated with or into or became a Restricted Subsidiary of such specified Person, and

(2) Indebtedness secured by a Lien encumbering any asset acquired by such specified Person.

Acquired Indebtedness will be deemed to have been Incurred, with respect to clause (1) of the preceding sentence, on the date such Person becomes a Restricted Subsidiary and, with respect to clause (2) of the preceding sentence, on the date of consummation of such acquisition of such assets.

“Additional Assets” means:

(1) any properties or assets used or useful in the Oil and Gas Business;

(2) capital expenditures by Holdings or a Restricted Subsidiary in the Oil and Gas Business;

(3) the Capital Stock of a Person that becomes a Restricted Subsidiary as a result of the acquisition of such Capital Stock by Holdings or another Restricted Subsidiary; or

(4) Capital Stock constituting a minority interest in any Person that at such time is a Restricted Subsidiary;

provided, however, that, in the case of clauses (3) and (4), such Restricted Subsidiary is primarily engaged in the Oil and Gas Business.

“Additional Notes” means the Notes issued under the terms of this Indenture subsequent to the Issue Date.

“Additional Refinancing Amount” means, in connection with the Incurrence of any Refinancing Indebtedness, the aggregate principal amount of additional Indebtedness, Disqualified Stock or Preferred Stock Incurred to pay premiums (including tender premiums), expenses, defeasance costs and fees in respect thereof.

“Adjusted Consolidated Net Tangible Assets” means (without duplication), as of the date of determination, the remainder of:

(a) the sum of:

(i) estimated discounted future net revenues from proved oil and natural gas reserves of Holdings and its Restricted Subsidiaries calculated in accordance with SEC guidelines before any provincial, territorial, state, federal or foreign income taxes, as estimated by Holdings in a reserve report prepared as of the end of Holdings’ most recently completed fiscal year for which audited financial statements are available, as increased by, as of the date of determination, the estimated discounted future net revenues from (A) estimated proved oil and natural gas reserves acquired since such year end, which reserves were not reflected in such year end reserve report, and (B) estimated oil and natural gas reserves attributable to upward revisions of estimates of proved oil and natural gas reserves (including the impact to discounted future net revenues related to development costs previously estimated in the last year end reserve report, but only to the extent such costs were actually incurred since the date of the last year end reserve report) since such year end due to exploration, development, exploitation or other activities, increased by the accretion of discount from the date of the last year end reserve report to the date of determination and decreased by, as of the date of determination, the estimated discounted future net revenues from (C) estimated proved oil and natural gas reserves included in the last year end reserve report that shall have been produced or disposed of since such year end, and (D) estimated oil and natural gas reserves included therein that are subsequently removed from the proved oil and natural gas reserves of Holdings and its Restricted Subsidiaries as so calculated due to downward revisions of estimates of proved oil and natural gas reserves since such year end due to changes in geological conditions or other factors which would, in accordance with standard industry practice, cause such revisions, provided, that (x) in the case of such year end reserve report and any adjustments since such year end pursuant to clauses (A), (B) and (D), the estimated discounted future net revenues from proved oil and natural gas reserves shall be determined in their entirety using oil, natural gas and other hydrocarbon prices and costs that are either (1) calculated in accordance with SEC guidelines and, with respect to such adjustments under clauses (A), (B) or (D), calculated with such prices and costs as if the end of the most recent fiscal quarter preceding the date of determination for which such information is available to Holdings were year end or (2) if Holdings so elects at any time, calculated in accordance with the foregoing clause (1), except that when pricing of

future net revenues of proved oil and natural gas reserves under SEC guidelines is not based on a contract price and is instead based upon benchmark, market or posted pricing, the pricing for each month of estimated future production from such proved oil and natural gas reserves not subject to contract pricing shall be based upon NYMEX (or successor) published forward prices for the most comparable hydrocarbon commodity applicable to such production month (adjusted for energy content, quality and basis differentials, with such basis differentials determined as provided in the definition of “Borrowing Base” and giving application to the last sentence of such definition hereto), as such forward prices are published as of the year end date of such reserve report or, with respect to post-year end adjustments under clauses (A), (B) or (D), the last day of the most recent fiscal quarter preceding the date of determination, (y) the pricing of estimated proved reserves that have been produced or disposed since year end as set forth in clause (D) shall be based upon the applicable pricing elected for the prior year end reserve report as provided in clause (x), and (z) in each case as estimated by Holdings’ petroleum engineers or any independent petroleum engineers engaged by Holdings for that purpose;

(ii) the capitalized costs that are attributable to Oil and Gas Properties of Holdings and its Restricted Subsidiaries to which no proved oil and natural gas reserves are attributable, based on Holdings’ books and records as of a date no earlier than the date of Holdings’ latest annual or quarterly consolidated financial statements;

(iii) the Net Working Capital on a date no earlier than the date of Holdings’ latest annual or quarterly consolidated financial statements;

(iv) assets related to commodity risk management activities less liabilities related to commodity risk management activities, in each case to the extent that such assets and liabilities arise in the ordinary course of the Oil and Gas Business, provided that such net value shall not be less than zero; and

(v) the greater of (A) the net book value of other tangible assets (including, without limitation, investments in unconsolidated Restricted Subsidiaries and mineral rights held under lease or other contractual arrangement) of Holdings and its Restricted Subsidiaries, as of a date no earlier than the date of Holdings’ latest annual or quarterly consolidated financial statements, and (B) the Fair Market Value, as estimated by Holdings, of other tangible assets (including, without limitation, investments in unconsolidated Restricted Subsidiaries and mineral rights held under lease or other contractual arrangement) of Holdings and its Restricted Subsidiaries, as of a date no earlier than the date of Holdings’ latest audited consolidated financial statements (it being understood that Holdings shall not be required to obtain any appraisal of any assets); minus

(b) the sum of:

(i) any amount included in clauses (a)(i) through (a)(v) above that is attributable to minority interests;

(ii) any net natural gas balancing liabilities of Holdings and its Restricted Subsidiaries reflected in Holdings’ latest audited consolidated financial statements;

(iii) to the extent included in clause (a)(i) above, the estimated discounted future net revenues, calculated in accordance with SEC guidelines (utilizing the prices and costs as provided in clause (a)(i)), attributable to reserves which are required to be delivered to third parties to fully satisfy the obligations of Holdings and its Restricted Subsidiaries with respect to Volumetric Production Payments (determined, if applicable, using the schedules specified with respect thereto); and

(iv) to the extent included in clause (a)(i) above, the estimated discounted future net revenues, calculated in accordance with SEC guidelines (utilizing prices and costs as provided in clause (a)(i)), attributable to reserves subject to Dollar-Denominated Production Payments which, based on the estimates of production and price assumptions included in determining the estimated discounted future net revenues specified in clause (a)(i) above, would be necessary to fully satisfy the payment obligations of Holdings and its Restricted Subsidiaries with respect to Dollar-Denominated Production Payments (determined, if applicable, using the schedules specified with respect thereto).

If Holdings changes its method of accounting from the full cost method of accounting to the successful efforts or a similar method, “Adjusted Consolidated Net Tangible Assets” will continue to be calculated as if Holdings were still using the full cost method of accounting.

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For purposes of this definition, “control” (including, with correlative meanings, the terms “controlling,” “controlled by” and “under common control with”), as used with respect to any Person, means the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement or otherwise.

“Applicable Premium” means, with respect to any Note on any applicable redemption date, as determined by the Issuers, the greater of:

(1) 1% of the then outstanding principal amount of the Note; and

(2) the excess of:

(a) the present value at such redemption date of (i) the redemption price of the Note, at May 1, 2017 (such redemption price being set forth in Paragraph 5 of the Note) plus (ii) all required interest payments due on the Note through May 1, 2017 (excluding accrued but unpaid interest), computed using a discount rate equal to the Treasury Rate as of such redemption date plus 50 basis points; over

(b) the then outstanding principal amount of the Note.

“Asset Sale” means:

(1) the sale, conveyance, transfer or other disposition (whether in a single transaction or a series of related transactions) of property or assets (including by way of Production Payments and Reserve Sales and Sale/ Leaseback Transactions) (other than an operating lease entered into in the ordinary course of the Oil and Gas Business) outside the ordinary course of business of Holdings or any Restricted Subsidiary (each referred to in this definition as a “disposition”); or

(2) the issuance or sale of Equity Interests (other than directors’ qualifying shares and shares issued to foreign nationals or other third parties to the extent required by applicable law) of any Restricted Subsidiary (other than to Holdings or another Restricted Subsidiary) (whether in a single transaction or a series of related transactions),

in each case other than:

(a) a disposition of Cash Equivalents or Investment Grade Securities or obsolete, damaged or worn out property or equipment in the ordinary course of business;

(b) the disposition of all or substantially all of the assets of Holdings in a manner permitted pursuant to Section 5.01 or any disposition that constitutes a Change of Control;

(d) any disposition of assets of Holdings or any Restricted Subsidiary or issuance or sale of Equity Interests of Holdings or any Restricted Subsidiary, which assets or Equity Interests so disposed or issued have an aggregate Fair Market Value (as determined in good faith by Holdings) of less than $50.0 million;

(e) any disposition of property or assets, or the issuance of securities, by a Restricted Subsidiary to Holdings or by Holdings or a Restricted Subsidiary to a Restricted Subsidiary;

(f) any exchange of assets (including a combination of assets and Cash Equivalents) for assets related to a Similar Business of comparable or greater market value or usefulness to the business of Holdings and the Restricted Subsidiaries as a whole, as determined in good faith by Holdings;

(g) foreclosure or any similar action with respect to any property or other asset of Holdings or any of the Restricted Subsidiaries;

(h) any sale of Equity Interests in, or Indebtedness or other securities of, an Unrestricted Subsidiary;

(i) the lease, assignment or sublease of, or any transfer related to a “reverse build to suit” or similar transaction in respect of, any real or personal property in the ordinary course of business;

(j) any sale of inventory or other assets in the ordinary course of business;

(k) any grant in the ordinary course of business of any license of patents, trademarks, know-how or any other intellectual property;

(l) in the ordinary course of business, any swap of assets, or lease, assignment or sublease of any real or personal property, in exchange for services (including in connection with any outsourcing arrangements) of comparable or greater value or usefulness to the business of Holdings and the Restricted Subsidiaries as a whole, as determined in good faith by Holdings;

(m) a transfer of accounts receivable and related assets of the type specified in the definition of “Receivables Financing” (or a fractional undivided interest therein) by a Receivables Subsidiary in a Qualified Receivables Financing;

(n) any financing transaction with respect to property built or acquired by Holdings or any Restricted Subsidiary after the Issue Date, including any Sale/Leaseback Transaction or asset securitization permitted by this Indenture;

(o) dispositions in connection with Permitted Liens;

(p) any disposition of Capital Stock of a Restricted Subsidiary pursuant to an agreement or other obligation with or to a Person (other than Holdings or a Restricted Subsidiary) from whom such Restricted Subsidiary was acquired or from whom such Restricted Subsidiary acquired its business and assets (having been newly formed in connection with such acquisition), made as part of such acquisition and in each case comprising all or a portion of the consideration in respect of such sale or acquisition;

(q) the sale of any property in a Sale/Leaseback Transaction within twelve months of the acquisition of such property;

(r) dispositions of receivables in connection with the compromise, settlement or collection thereof in the ordinary course of business or in bankruptcy or similar proceedings and exclusive of factoring or similar arrangements;

(s) any surrender, expiration or waiver of contract rights or oil and natural gas leases or the settlement, release, recovery on or surrender of contract, tort or other claims of any kind;

(t) a disposition of Hydrocarbons or mineral products inventory in the ordinary course of business;

(u) any Production Payments and Reserve Sales; provided that any such Production Payments and Reserve Sales, other than incentive compensation programs on terms that are reasonably customary in the Oil and Gas Business for geologists, geophysicists and other providers of technical services to an Issuer or a Restricted Subsidiary, shall have been created, incurred, issued, assumed or guaranteed in connection with the financing of, and within 60 days after the acquisition of, the property that is subject thereto;

(v) the abandonment, farm-out pursuant to a Farm-Out Agreement, lease or sublease of developed or underdeveloped Oil and Gas Properties owned or held by an Issuer or any Restricted Subsidiary in the ordinary course of business or which are usual and customary in the Oil and Gas Business generally or in the geographic region in which such activities occur; and

(w) a disposition (whether or not in the ordinary course of business) of any Oil and Gas Property or interest therein to which no proved reserves are attributable at the time of such disposition.

“Athlon Energy” means Athlon Energy Inc., together with its successors and assigns.

“Bank Indebtedness” means any and all amounts payable under or in respect of (a) the Credit Agreement and the other Credit Agreement Documents, as amended, restated, supplemented, waived, replaced (whether or not upon termination, and whether with the original lenders or otherwise), restructured, repaid, refunded, refinanced or otherwise modified from time to time (including after termination of the Credit Agreement), including any agreement or indenture extending the maturity thereof, refinancing, replacing or otherwise restructuring all or any portion of the Indebtedness under such agreement or agreements or indenture or indentures or any successor or replacement agreement or agreements or indenture or indentures or increasing the amount loaned or issued thereunder or altering the maturity thereof, including principal, premium (if any), interest (including interest accruing on or after the filing of any petition in bankruptcy or for reorganization relating to Holdings whether or not a claim for post-filing interest is allowed in such proceedings), fees, charges, expenses, reimbursement obligations, guarantees and all other amounts payable thereunder or in respect thereof and (b) whether or not the Indebtedness referred to in clause (a) remains outstanding, if designated by Holdings to be included in this definition, one or more (A) debt facilities or commercial paper facilities, providing for revolving credit loans, term loans, reserve-based loans, receivables financing (including through the sale of receivables to lenders or to special purpose entities formed to borrow from lenders against such receivables) or letters of credit, (B) debt securities, indentures or other forms of debt financing (including convertible or exchangeable debt instruments or bank guarantees or bankers’ acceptances), or (C) instruments or agreements evidencing any other Indebtedness, in each case, with the same or different borrowers or issuers and, in each case, as amended, supplemented, modified, extended, restructured, renewed, refinanced, restated, replaced or refunded in whole or in part from time to time.

“Board of Directors” means, as to any Person, the board of directors or managers, as applicable, of such Person (or, if such Person is a partnership, the board of directors or other

governing body of the general partner of such Person) or any duly authorized committee thereof. In the case of Holdings, the Board of Directors of Holdings shall be deemed to include the Board of Directors of Holdings or any direct or indirect parent of Holdings, as appropriate.

“Borrowing Base” means, at any date of determination, an amount equal to the amount of (a) 75% of the net present value discounted at 8% of proved developed producing (PDP) reserves, plus (b) 50% of the net present value discounted at 8% of proved developed non-producing (PDNP) reserves, plus (c) 50% of the net present value discounted at 8% of proven undeveloped (PUD) reserves, plus (d) 65% of the positive net present value discounted at 8% of the future receipts expected to be paid to or by Holdings and its Restricted Subsidiaries under commodity hedging agreements (other than basis differential commodity hedging agreements), netted against the price described below, plus (e) 65% of the positive net present value discounted at 8% of the future receipts expected to be paid to or by Holdings and its Restricted Subsidiaries under basis differential commodity hedging agreements, in each case for Holdings and its Restricted Subsidiaries, and (i) for purposes of clauses (a) through (d) above, as estimated by Holdings in a reserve report prepared by Holdings’ petroleum engineers applying the relevant NYMEX (or successor) published forward prices for the most comparable hydrocarbon commodity adjusted for relevant energy content, quality and basis differentials (before any state or federal or other income tax) and (ii) for purposes of clauses (d) and (e) above, as estimated by Holdings applying, if available, the relevant NYMEX (or successor) published forward basis differential or, if such NYMEX (or successor) forward basis differential is unavailable, in good faith based on historical basis differential (before any state or federal or other income tax). For any months beyond the term included in published NYMEX (or successor) forward pricing, the price used will be equal to the last published contract escalated at 3.0% per annum.

“Business Day” means a day other than a Saturday, Sunday or other day on which banking institutions are authorized or required by law to close in New York City or the place of payment.

“Capital Stock” means:

(1) in the case of a corporation, corporate stock or shares;

(2) in the case of an association or business entity, any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock;

(3) in the case of a partnership or limited liability company, partnership or membership interests (whether general or limited); and

(4) any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or distributions of assets of, the issuing Person.

“Capitalized Lease Obligation” means, at the time any determination thereof is to be made, the amount of the liability in respect of a capital lease that would at such time be required to be capitalized and reflected as a liability on a balance sheet (excluding the footnotes thereto) in accordance with GAAP; provided that any obligations of Holdings or its Restricted

Subsidiaries, or of a special purpose or other entity not consolidated with Holdings and its Restricted Subsidiaries, either existing on the Issue Date or created prior to any recharacterization described below (or any refinancings thereof) (i) that were not included on the consolidated balance sheet of Holdings as capital lease obligations and (ii) that are subsequently recharacterized as capital lease obligations or, in the case of such a special purpose or other entity becoming consolidated with Holdings and its Restricted Subsidiaries, due to a change in accounting treatment or otherwise, shall for all purposes not be treated as Capitalized Lease Obligations or Indebtedness.

“Capitalized Software Expenditures” shall mean, for any period, the aggregate of all expenditures (whether paid in cash or accrued as liabilities) by a Person and its Restricted Subsidiaries during such period in respect of licensed or purchased software or internally developed software and software enhancements that, in conformity with GAAP, are or are required to be reflected as capitalized costs on the consolidated balance sheet of such Person and such Restricted Subsidiaries.

“Cash Equivalents” means:

(1) U.S. dollars, pounds sterling, euros, the national currency of any member state in the European Union or such local currencies held by an entity from time to time in the ordinary course of business;

(2) securities issued or directly and fully guaranteed or insured by the U.S. government or any country that is a member of the European Union or any agency or instrumentality thereof in each case maturing not more than two years from the date of acquisition;

(3) certificates of deposit, time deposits and eurodollar time deposits with maturities of one year or less from the date of acquisition, bankers’ acceptances, in each case with maturities not exceeding one year and overnight bank deposits, in each case with any commercial bank having capital and surplus in excess of $250.0 million and whose long-term debt is rated “A” or the equivalent thereof by Xxxxx’x or S&P (or reasonably equivalent ratings of another internationally recognized ratings agency);

(4) repurchase obligations for underlying securities of the types described in clauses (2) and (3) above entered into with any financial institution meeting the qualifications specified in clause (3) above;

(5) commercial paper issued by a corporation (other than an Affiliate of Holdings) rated at least “A-1” or the equivalent thereof by Xxxxx’x or S&P (or reasonably equivalent ratings of another internationally recognized ratings agency) and in each case maturing within one year after the date of acquisition;

(6) readily marketable direct obligations issued by any state of the United States of America or any political subdivision thereof having one of the two highest rating categories obtainable from either Xxxxx’x or S&P (or reasonably equivalent ratings of another internationally recognized ratings agency) in each case with maturities not exceeding two years from the date of acquisition;

(7) Indebtedness issued by Persons (other than the Sponsors or any of their Affiliates) with a rating of “A” or higher from S&P or “A-2” or higher from Xxxxx’x (or reasonably equivalent ratings of another internationally recognized ratings agency) in each case with maturities not exceeding two years from the date of acquisition; and

(8) investment funds investing at least 95% of their assets in securities of the types described in clauses (1) through (7) above.

“CFC” means a “controlled foreign corporation” within the meaning of Section 957 of the Code.

“Change of Control” means the occurrence of either of the following:

(1) the sale, lease or transfer (other than by way of merger or consolidation, including any merger or consolidation involving an Affiliate of Holdings solely for the purpose of reorganizing either of the Issuers in another jurisdiction to realize tax or other benefits), in one or a series of related transactions, of all or substantially all the assets of Holdings and its Subsidiaries, taken as a whole, to a Person other than any of the Permitted Holders; or

(2) Holdings becomes aware (by way of a report or any other filing pursuant to Section 13(d) of the Exchange Act, proxy, vote, written notice or otherwise) of the acquisition by any Person or group (within the meaning of Section 13(d)(3) or Section 14(d)(2) of the Exchange Act, or any successor provision), including any group acting for the purpose of acquiring, holding or disposing of securities (within the meaning of Rule 13d-5(b)(1) under the Exchange Act), other than any of the Permitted Holders, in a single transaction or in a related series of transactions, by way of merger, consolidation, amalgamation or other business combination or purchase of beneficial ownership (within the meaning of Rule 13d-3 under the Exchange Act, or any successor provision), of more than 50% of the total voting power of the Voting Stock of Holdings.

“Change of Control Triggering Event” means (a) at any time on or prior to July 15, 2015, the occurrence of both a Change of Control and a Rating Event and (b) at any time on or after July 16, 2015, the occurrence of a Change of Control. Notwithstanding the foregoing, no Change of Control Triggering Event will be deemed to have occurred in connection with any particular Change of Control unless and until such Change of Control has actually been consummated.

“Code” means the Internal Revenue Code of 1986, as amended.

“Consolidated Depreciation, Depletion and Amortization Expense” means, with respect to any Person for any period, the total amount of depreciation, depletion and amortization expense, including the amortization of intangible assets, deferred financing fees and Capitalized Software Expenditures and amortization of unrecognized prior service costs and actuarial gains and losses related to pensions and other post-employment benefits, of such Person and its Restricted Subsidiaries for such period on a consolidated basis and otherwise determined in accordance with GAAP.

“Consolidated Interest Expense” means, with respect to any Person for any period, the sum, without duplication, of:

(1) consolidated interest expense of such Person and its Restricted Subsidiaries for such period, to the extent such expense was deducted in computing Consolidated Net Income (including amortization of original issue discount, the interest component of Capitalized Lease Obligations, and net payments and receipts (if any) pursuant to interest rate Hedging Obligations and excluding amortization of deferred financing fees, any interest attributable to Dollar-Denominated Production Payments, debt issuance costs, commissions, fees and expenses, expensing of any bridge, commitment or other financing fees and non-cash interest expense attributable to movement in xxxx to market valuation of Hedging Obligations or other derivatives (in each case permitted hereunder) under GAAP); plus

(2) consolidated capitalized interest of such Person and its Restricted Subsidiaries for such period, whether paid or accrued; plus

(3) commissions, discounts, yield and other fees and charges Incurred in connection with any Receivables Financing which are payable to Persons other than Holdings and the Restricted Subsidiaries; minus

(4) interest income for such period.

For purposes of this definition, interest on a Capitalized Lease Obligation shall be deemed to accrue at an interest rate reasonably determined by Holdings to be the rate of interest implicit in such Capitalized Lease Obligation in accordance with GAAP.

“Consolidated Net Income” means, with respect to any Person for any period, the aggregate of the Net Income of such Person and its Restricted Subsidiaries for such period, on a consolidated basis; provided, however, that:

(1) any net after-tax extraordinary, nonrecurring or unusual gains or losses (less all fees and expenses relating thereto) or expenses or charges, any severance expenses, relocation expenses, curtailments or modifications to pension and post-retirement employee benefit plans, any expenses related to any reconstruction, decommissioning, recommissioning or reconfiguration of fixed assets for alternate uses and fees, expenses or charges relating to facilities closing costs, acquisition integration costs, facilities opening costs, project start-up costs, business optimization costs, signing, retention or completion bonuses, expenses or charges related to any issuance of Equity Interests, Investment, acquisition, disposition, recapitalization or issuance, repayment, refinancing, amendment or modification of Indebtedness (in each case, whether or not successful), and any fees, expenses, charges or change in control payments related to the offer and sale of the Notes, in each case, shall be excluded;

(2) effects of purchase accounting adjustments (including the effects of such adjustments pushed down to such Person and such Subsidiaries) in amounts required or permitted by GAAP, resulting from the application of purchase accounting or the amortization or write-off of any amounts thereof, net of taxes, shall be excluded;

(3) the Net Income for such period shall not include the cumulative effect of a change in accounting principles during such period;

(4) any net after-tax income or loss from disposed, abandoned, transferred, closed or discontinued operations or fixed assets and any net after-tax gains or losses on disposal of disposed, abandoned, transferred, closed or discontinued operations or fixed assets shall be excluded;

(5) any net after-tax gains or losses (less all fees and expenses or charges relating thereto) attributable to business dispositions or asset dispositions other than in the ordinary course of business (as determined in good faith by management of Holdings) shall be excluded;

(6) any net after-tax gains or losses (less all fees and expenses or charges relating thereto) attributable to the early extinguishment of Indebtedness, Hedging Obligations or other derivative instruments shall be excluded;

(7) the Net Income for such period of any Person that is not a Subsidiary of such Person, or is an Unrestricted Subsidiary, or that is accounted for by the equity method of accounting, shall be included only to the extent of the amount of dividends or distributions or other payments paid in cash (or to the extent converted into cash) to the referent Person or a Restricted Subsidiary thereof in respect of such period;

(8) solely for the purpose of determining the amount available for Restricted Payments under clause (1) of the definition of “Cumulative Credit,” the Net Income for such period of any Restricted Subsidiary (other than any Subsidiary Guarantor) shall be excluded to the extent that the declaration or payment of dividends or similar distributions by such Restricted Subsidiary of its Net Income is not at the date of determination permitted without any prior governmental approval (which has not been obtained) or, directly or indirectly, by the operation of the terms of its charter or any agreement, instrument, judgment, decree, order, statute, rule or governmental regulation applicable to that Restricted Subsidiary or its stockholders, unless such restrictions with respect to the payment of dividends or similar distributions have been legally waived; provided that the Consolidated Net Income of such Person shall be increased by the amount of dividends or other distributions or other payments actually paid in cash (or converted into cash) by any such Restricted Subsidiary to such Person, to the extent not already included therein;

(9) an amount equal to the amount of Tax Distributions actually made to any parent or equity holder of such Person in respect of such period in accordance with Section 4.04(b)(xii) shall be included as though such amounts had been paid as income taxes directly by such Person for such period;

(10) any impairment charges or asset write-offs, in each case pursuant to GAAP, the amortization of intangibles arising pursuant to GAAP, and any impairment charges, asset write-offs or write-down, including ceiling test write-downs, on Oil and Gas Properties under GAAP or SEC guidelines shall be excluded;

(11) any non-cash expense realized or resulting from stock option plans, employee benefit plans or post-employment benefit plans, or grants or sales of stock, stock appreciation or similar rights, stock options, restricted stock, preferred stock or other rights shall be excluded;

(12) any (a) non-cash compensation charges, (b) costs and expenses after the Issue Date related to employment of terminated employees, or (c) costs or expenses realized in connection with or resulting from stock appreciation or similar rights, stock options or other rights existing on the Issue Date of officers, directors, managers and employees, in each case of such Person or any Restricted Subsidiary, shall be excluded;

(13) accruals and reserves that are established or adjusted within 12 months after the Issue Date and that are so required to be established or adjusted in accordance with GAAP or as a result of adoption or modification of accounting policies shall be excluded;

(14) (a) the Net Income of any Person and its Restricted Subsidiaries shall be calculated without deducting the income attributable to, or adding the losses attributable to, the minority equity interests of third parties in any non-Wholly Owned Restricted Subsidiary except to the extent of dividends declared or paid in respect of such period or any prior period on the shares of Capital Stock of such Restricted Subsidiary held by such third parties and (b) any ordinary course dividend, distribution or other payment paid in cash and received from any Person in excess of amounts included in clause (7) above shall be included;

(15) (a)(i) the non-cash portion of “straight-line” rent expense shall be excluded and (ii) the cash portion of “straight-line” rent expense which exceeds the amount expensed in respect of such rent expense shall be included and (b) non-cash gains, losses, income and expenses resulting from fair value accounting required by the applicable standard under GAAP and related interpretations shall be excluded;

(16) any currency translation gains and losses related to currency remeasurements of Indebtedness, and any net loss or gain resulting from hedging transactions for currency exchange risk, shall be excluded;

(17) (a) to the extent covered by insurance and actually reimbursed, or, so long as such Person has made a determination that there exists reasonable evidence that such amount will in fact be reimbursed by the insurer and only to the extent that such amount is (i) not denied by the applicable carrier in writing within 180 days and (ii) in fact reimbursed within 365 days of the date of such evidence (with a deduction for any amount so added back to the extent not so reimbursed within 365 days), expenses with respect to liability or casualty events or business interruption shall be excluded and (b) amounts estimated in good faith to be received from insurance in respect of lost revenues or earnings in respect of liability or casualty events or business interruption shall be included (with a deduction for amounts actually received up to such estimated amount to the extent included in Net Income in a future period);

(18) Capitalized Software Expenditures shall be excluded; and

(19) Non-cash charges for deferred tax asset valuation allowances shall be excluded (except to the extent reversing a previously recognized increase to net income).

Notwithstanding the foregoing, for the purpose of Section 4.04 only, there shall be excluded from Consolidated Net Income any dividends, repayments of loans or advances or other transfers of assets from Unrestricted Subsidiaries or Restricted Subsidiaries to the extent such dividends, repayments or transfers increase the amount of Restricted Payments permitted under Section 4.04 pursuant to clauses (4) and (5) of the definition of “Cumulative Credit.”

“Consolidated Non-Cash Charges” means, with respect to any Person for any period, the non-cash expenses (other than Consolidated Depreciation, Depletion and Amortization Expense) of such Person and its Restricted Subsidiaries reducing Consolidated Net Income of such Person for such period on a consolidated basis and otherwise determined in accordance with GAAP, provided that if any such non-cash expenses represent an accrual or reserve for potential cash items in any future period, the cash payment in respect thereof in such future period shall be subtracted from EBITDA in such future period to the extent paid, but excluding from this proviso, for the avoidance of doubt, amortization of a prepaid cash item that was paid in a prior period.

“Consolidated Taxes” means, with respect to any Person for any period, the provision for taxes based on income, profits or capital, including, without limitation, state, franchise, property and similar taxes, foreign withholding taxes (including penalties and interest related to such taxes or arising from tax examinations) and any Tax Distributions taken into account in calculating Consolidated Net Income.

“Consolidated Total Indebtedness” means, as of any date of determination, an amount equal to the sum (without duplication) of (1) the aggregate principal amount of all outstanding Indebtedness of Holdings and the Restricted Subsidiaries (excluding any undrawn letters of credit) consisting of Capitalized Lease Obligations, bankers’ acceptances and Indebtedness for borrowed money, plus (2) the aggregate amount of all outstanding Disqualified Stock of Holdings and the Restricted Subsidiaries and all Preferred Stock of Restricted Subsidiaries, with the amount of such Disqualified Stock and Preferred Stock equal to the greater of their respective voluntary or involuntary liquidation preferences, in each case determined on a consolidated basis in accordance with GAAP.

“Contingent Obligations” means, with respect to any Person, any obligation of such Person guaranteeing any leases, dividends or other obligations that do not constitute Indebtedness (“primary obligations”) of any other Person (the “primary obligor”) in any manner, whether directly or indirectly, including, without limitation, any obligation of such Person, whether or not contingent:

(1) to purchase any such primary obligation or any property constituting direct or indirect security therefor,

(2) to advance or supply funds:

(a) for the purchase or payment of any such primary obligation; or

(b) to maintain working capital or equity capital of the primary obligor or otherwise to maintain the net worth or solvency of the primary obligor; or

(3) to purchase property, securities or services primarily for the purpose of assuring the owner of any such primary obligation of the ability of the primary obligor to make payment of such primary obligation against loss in respect thereof.

“Corporate Trust Office” means the designated office of the Trustee in the United States of America at which at any time its corporate trust business shall be administered, or such other address as the Trustee may designate from time to time by notice to the holders and the Issuers, or the principal corporate trust office of any successor Trustee (or such other address as such successor Trustee may designate from time to time by notice to the holders and the Issuers).

“Credit Agreement” means (i) that certain amended and restated credit agreement dated as of March 19, 2013, as amended by the first amendment to amended and restated credit agreement and borrowing base redetermination, dated as of November 14, 2013, among Holdings, the guarantors named therein, the financial institutions named therein and Bank of America, N.A. as administrative agent, as amended, restated, supplemented, waived, replaced (whether or not upon termination, and whether with the original lenders or otherwise), restructured, repaid, refunded, refinanced or otherwise modified from time to time, including any agreement or indenture extending the maturity thereof, refinancing, replacing or otherwise restructuring all or any portion of the Indebtedness under such agreement or agreements or indenture or indentures or any successor or replacement agreement or agreements or indenture or indentures or increasing the amount loaned or issued thereunder or altering the maturity thereof and (ii) whether or not the credit agreement referred to in clause (i) remains outstanding, if designated by Holdings to be included in the definition of “Credit Agreement,” one or more (A) debt facilities or commercial paper facilities, providing for revolving credit loans, term loans, reserve-based loans, receivables financing (including through the sale of receivables to lenders or to special purpose entities formed to borrow from lenders against such receivables) or letters of credit, (B) debt securities, indentures or other forms of debt financing (including convertible or exchangeable debt instruments or bank guarantees or bankers’ acceptances), or (C) instruments or agreements evidencing any other Indebtedness, in each case, with the same or different borrowers or issuers and, in each case, as amended, supplemented, modified, extended, restructured, renewed, refinanced, restated, replaced or refunded in whole or in part from time to time.

“Credit Agreement Documents” means the collective reference to any Credit Agreement, any notes issued pursuant thereto and the guarantees thereof, and the collateral documents relating thereto, as amended, supplemented, restated, renewed, refunded, replaced, restructured, repaid, refinanced or otherwise modified, in whole or in part, from time to time.

“Cumulative Credit” means the sum of (without duplication):

(1) 50% of the Consolidated Net Income of Holdings for the period from January 1, 2013 to the end of Holdings’ most recently ended fiscal quarter for which

internal financial statements are available at the time of such Restricted Payment (taken as one accounting period, the “Reference Period”) (or in case such Consolidated Net Income for such period is a deficit, minus 100% of such deficit), plus

(2) 100% of the aggregate net proceeds, including cash and the Fair Market Value (as determined in good faith by Holdings) of property other than cash, received by Holdings after the Issue Date (other than net proceeds to the extent such net proceeds have been used to Incur Indebtedness, Disqualified Stock or Preferred Stock pursuant to Section 4.03(b)(xiii)) from the issue or sale of Equity Interests of Holdings or any direct or indirect parent entity of Holdings (excluding Refunding Capital Stock (as defined below), Designated Preferred Stock, Excluded Contributions, and Disqualified Stock), including Equity Interests issued upon exercise of warrants or options (other than an issuance or sale to Holdings or a Restricted Subsidiary), plus

(3) 100% of the aggregate amount of contributions to the capital of Holdings received in cash and the Fair Market Value (as determined in good faith by Holdings) of property other than cash after the Issue Date (other than Excluded Contributions, Refunding Capital Stock, Designated Preferred Stock, and Disqualified Stock and other than contributions to the extent such contributions have been used to Incur Indebtedness, Disqualified Stock, or Preferred Stock pursuant to Section 4.03(b)(xiii)), plus

(4) 100% of the principal amount of any Indebtedness, or the liquidation preference or maximum fixed repurchase price, as the case may be, of any Disqualified Stock of Holdings or any Restricted Subsidiary issued after the Issue Date (other than Indebtedness or Disqualified Stock issued to a Restricted Subsidiary) which has been converted into or exchanged for Equity Interests in Holdings (other than Disqualified Stock) or any direct or indirect parent of Holdings (provided in the case of any such parent, such Indebtedness or Disqualified Stock is retired or extinguished), plus

(5) 100% of the aggregate amount received by Holdings or any Restricted Subsidiary in cash and the Fair Market Value (as determined in good faith by Holdings) of property other than cash received by Holdings or any Restricted Subsidiary from:

(A) the sale or other disposition (other than to Holdings or a Restricted Subsidiary) of Restricted Investments made by Holdings and the Restricted Subsidiaries and from repurchases and redemptions of such Restricted Investments from Holdings and the Restricted Subsidiaries by any Person (other than Holdings or any Restricted Subsidiary) and from repayments of loans or advances, and releases of guarantees, which constituted Restricted Investments (other than in each case to the extent that the Restricted Investment was made pursuant to Section 4.04(b)(vii)),

(B) the sale (other than to Holdings or a Restricted Subsidiary) of the Capital Stock of an Unrestricted Subsidiary, or

(6) in the event any Unrestricted Subsidiary has been redesignated as a Restricted Subsidiary or has been merged, consolidated or amalgamated with or into, or transfers or conveys its assets to, or is liquidated into, Holdings or a Restricted Subsidiary, the Fair Market Value (as determined in good faith by Holdings) of the Investment of Holdings or the Restricted Subsidiaries in such Unrestricted Subsidiary (which, if the Fair Market Value of such investment shall exceed $25.0 million, shall be determined by the Board of Directors of Holdings) at the time of such redesignation, combination or transfer (or of the assets transferred or conveyed, as applicable) (other than in each case to the extent that the designation of such Subsidiary as an Unrestricted Subsidiary was made pursuant to Section 4.04(b)(vii) or constituted a Permitted Investment).

“Default” means any event which is, or after notice or passage of time or both would be, an Event of Default.

“Designated Non-cash Consideration” means the Fair Market Value (as determined in good faith by Holdings) of non-cash consideration received by Holdings or a Restricted Subsidiary in connection with an Asset Sale that is so designated as Designated Non-cash Consideration pursuant to an Officers’ Certificate, setting forth the basis of such valuation, less the amount of Cash Equivalents received in connection with a subsequent sale of such Designated Non-cash Consideration.

“Designated Preferred Stock” means Preferred Stock of Holdings or any direct or indirect parent of Holdings (other than Disqualified Stock), that is issued for cash (other than to Holdings or any of its Subsidiaries or an employee stock ownership plan or trust established by Holdings or any of its Subsidiaries) and is so designated as Designated Preferred Stock, pursuant to an Officers’ Certificate, on the issuance date thereof.

“Disqualified Stock” means, with respect to any Person, any Capital Stock of such Person which, by its terms (or by the terms of any security into which it is convertible or for which it is redeemable or exchangeable), or upon the happening of any event:

(1) matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise (other than as a result of a change of control or asset sale),

(2) is convertible or exchangeable for Indebtedness or Disqualified Stock of such Person, or

(3) is redeemable at the option of the holder thereof, in whole or in part (other than solely as a result of a change of control or asset sale),

in each case prior to 91 days after the earlier of the maturity date of the Notes or the date the Notes are no longer outstanding; provided, however, that only the portion of Capital Stock which so matures or is mandatorily redeemable, is so convertible or exchangeable or is so redeemable at the option of the holder thereof prior to such date shall be deemed to be Disqualified Stock; provided, further, however, that if such Capital Stock is issued to any employee or to any plan for the benefit of employees of Holdings or its Subsidiaries or by any such plan to such employees, such Capital Stock shall not constitute Disqualified Stock solely because it may be

required to be repurchased by such Person in order to satisfy applicable statutory or regulatory obligations or as a result of such employee’s termination, death or disability; provided, further, that any class of Capital Stock of such Person that by its terms authorizes such Person to satisfy its obligations thereunder by delivery of Capital Stock that is not Disqualified Stock shall not be deemed to be Disqualified Stock.

“Dollar-Denominated Production Payments” means production payment obligations recorded as liabilities in accordance with GAAP, together with all undertakings and obligations in connection therewith.

“Domestic Subsidiary” means a Restricted Subsidiary that is not a Foreign Subsidiary.

“EBITDA” means, with respect to any Person for any period, the Consolidated Net Income of such Person and its Restricted Subsidiaries for such period plus, without duplication, to the extent the same was deducted in calculating Consolidated Net Income:

(1) Consolidated Taxes; plus

(2) Fixed Charges; plus

(3) Consolidated Depreciation, Depletion and Amortization Expense; plus

(4) Consolidated Non-Cash Charges; plus

(5) any expenses or charges (other than Consolidated Depreciation, Depletion and Amortization Expense) related to any issuance of Equity Interests, Investment, acquisition, disposition, recapitalization or the Incurrence or repayment of Indebtedness permitted to be Incurred by this Indenture (including a refinancing thereof) (whether or not successful), including (i) such fees, expenses or charges related to (a) the Notes, (b) the 2021 Senior Notes or (c) any Bank Indebtedness, (ii) any amendment or other modification of the Notes or other Indebtedness and (iii) commissions, discounts, yield and other fees and charges (including any interest expense) related to any Qualified Receivables Financing; plus

(6) business optimization expenses and other restructuring charges, reserves or expenses (which, for the avoidance of doubt, shall include, without limitation, the effect of inventory optimization programs, facility closures, facility consolidations, retention, systems establishment costs, contract termination costs, future lease commitments and excess pension charges); plus

(7) the amount of loss on sale of receivables and related assets to a Receivables Subsidiary in connection with a Qualified Receivables Financing; plus

(8) any costs or expense Incurred pursuant to any management equity plan or stock option plan or any other management or employee benefit plan or agreement or any stock subscription or shareholder agreement, to the extent that such cost or expenses are funded with cash proceeds contributed to the capital of Holdings or a Subsidiary

Guarantor or net cash proceeds of an issuance of Equity Interests of Holdings (other than Disqualified Stock) solely to the extent that such net cash proceeds are excluded from the calculation of the Cumulative Credit; plus

(9) the amount of any management, monitoring, consulting, transaction and advisory fees and related expenses paid to the Sponsors (or any accruals relating to such fees and related expenses) during such period to the extent otherwise permitted by Section 4.07, including, if applicable, the amount of any termination fees paid pursuant to clause (xxi) thereof; plus

(10) all adjustments of the nature used in connection with the calculation of “Adjusted EBITDA” as set forth in “Summary Consolidated Financial, Reserve and Operating Data—Non-GAAP Financial Measures—Adjusted EBITDA” under “Offering Memorandum Summary” in the Offering Memorandum to the extent such adjustments, without duplication, continue to be applicable to such period; plus

(11) the amount of any loss attributable to a new plant or facility until the date that is 12 months after completing construction of or acquiring such plant or facility, as the case may be; provided that (A) such losses are reasonably identifiable and factually supportable and certified by a responsible officer of such Person and (B) losses attributable to such plant or facility after 12 months from the date of completing construction of or acquisition of such plant or facility, as the case may be, shall not be included in this clause (11), plus

(12) if such Person accounts for its oil and natural gas operations using the successful efforts or a similar method of accounting, consolidated exploration expense of such Person and its Restricted Subsidiaries, and

less, without duplication, to the extent the same increased Consolidated Net Income,

(13) the sum of (x) the amount of deferred revenues that are amortized during such period and are attributable to reserves that are subject to Volumetric Production Payments and (y) amounts recorded in accordance with GAAP as repayments of principal and interest pursuant to Dollar-Denominated Production Payments; and

(14) non-cash items increasing Consolidated Net Income for such period (excluding the recognition of deferred revenue or any items which represent the reversal of any accrual of, or cash reserve for, anticipated cash charges that reduced EBITDA in any prior period and any items for which cash was received in a prior period).

“Equity Interests” means Capital Stock and all warrants, options or other rights to acquire Capital Stock (but excluding any debt security that is convertible into, or exchangeable for, Capital Stock).

“Equity Offering” means any public or private sale after the Issue Date of common Capital Stock or Preferred Stock of Holdings or any direct or indirect parent of Holdings, as applicable (other than Disqualified Stock), other than:

(1) public offerings with respect to Holdings’ or such direct or indirect parent’s common stock registered on Form S-4 or Form S-8;

(2) issuances to any Subsidiary of Holdings; and

(3) any such public or private sale that constitutes an Excluded Contribution.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the SEC promulgated thereunder.

“Excluded Contributions” means the Cash Equivalents or other assets (valued at their Fair Market Value as determined in good faith by Holdings) received by Holdings after the Issue Date from:

(1) contributions to its common equity capital, and

(2) the sale (other than to a Subsidiary of Holdings or to any Subsidiary management equity plan or stock option plan or any other management or employee benefit plan or agreement) of Capital Stock (other than Disqualified Stock and Designated Preferred Stock) of Holdings,

in each case designated as Excluded Contributions pursuant to an Officers’ Certificate on or promptly after the date such capital contributions are made or the date such Capital Stock is sold, as the case may be.

“Excluded Subsidiary” means (a) any Unrestricted Subsidiary, (b) any Subsidiary that is not a Wholly Owned Subsidiary, (c) any Foreign Subsidiary, (d) any Domestic Subsidiary (i) that owns no material assets (directly or through its Subsidiaries) other than equity interests of one or more Foreign Subsidiaries that are CFCs or (ii) that is a direct or indirect Subsidiary of a Foreign Subsidiary, (e) any Receivables Subsidiary and (f) any Subsidiary (other than a Significant Subsidiary) that (i) did not, as of the last day of the fiscal quarter of Holdings most recently ended, have assets with a value in excess of 5.0% of the Total Assets or revenues representing in excess of 5.0% of total revenues of Holdings and the Restricted Subsidiaries on a consolidated basis as of such date and (ii) taken together with all other such Subsidiaries as of the last day of the fiscal quarter of Holdings most recently ended, did not have assets with a value in excess of 10.0% of the Total Assets or revenues representing in excess of 10.0% of total revenues of Holdings and the Restricted Subsidiaries on a consolidated basis as of such date.

“Fair Market Value” means, with respect to any asset or property, the price which could be negotiated in an arm’s-length transaction, for cash, between a willing seller and a willing and able buyer, neither of whom is under undue pressure or compulsion to complete the transaction.

“Farm-In Agreement” means an agreement whereby a Person agrees to pay all or a share of the drilling, completion or other expenses of one or more exploratory or development xxxxx (which agreement may be subject to a maximum payment obligation, after which expenses are shared in accordance with the working or participation interests therein or in accordance with the agreement of the parties) or perform the drilling, completion or other operation on such well

or xxxxx as all or a part of the consideration provided in exchange for an ownership interest in an Oil and Gas Property.

“Farm-Out Agreement” means a Farm-In Agreement, viewed from the standpoint of the party that transfers an ownership interest to another.

“Fixed Charge Coverage Ratio” means, with respect to any Person for any period, the ratio of EBITDA of such Person for such period to the Fixed Charges of such Person for such period. In the event that Holdings or any of its Restricted Subsidiaries Incurs, repays, repurchases or redeems any Indebtedness (other than in the case of any Qualified Receivables Financing, in which case interest expense shall be computed based upon the average daily balance of such Indebtedness during the applicable period) or issues, repurchases or redeems Disqualified Stock or Preferred Stock subsequent to the commencement of the period for which the Fixed Charge Coverage Ratio is being calculated but prior to the event for which the calculation of the Fixed Charge Coverage Ratio is made (the “Calculation Date”), then the Fixed Charge Coverage Ratio shall be calculated giving pro forma effect to such Incurrence, repayment, repurchase or redemption of Indebtedness, or such issuance, repurchase or redemption of Disqualified Stock or Preferred Stock, as if the same had occurred at the beginning of the applicable four-quarter period; provided that Holdings may elect pursuant to an Officers’ Certificate delivered to the Trustee to treat all or any portion of the commitment under any Indebtedness as being Incurred at such time, in which case any subsequent Incurrence of Indebtedness under such commitment shall not be deemed, for purposes of this calculation, to be an Incurrence at such subsequent time.

For purposes of making the computation referred to above, Investments, acquisitions, dispositions, mergers, amalgamations, consolidations and discontinued operations (as determined in accordance with GAAP), in each case with respect to an operating unit of a business, and any operational changes that Holdings or any Restricted Subsidiary has determined to make and/or made during the four-quarter reference period or subsequent to such reference period and on or prior to or simultaneously with the Calculation Date shall be calculated on a pro forma basis assuming that all such Investments, acquisitions, dispositions, mergers, amalgamations, consolidations, discontinued operations and other operational changes (and the change of any associated fixed charge obligations and the change in EBITDA resulting therefrom) had occurred on the first day of the four-quarter reference period. If since the beginning of such period any Person that subsequently became a Restricted Subsidiary or was merged with or into Holdings or any Restricted Subsidiary since the beginning of such period shall have made any Investment, acquisition, disposition, merger, consolidation, amalgamation, discontinued operation or operational change, in each case with respect to an operating unit of a business, that would have required adjustment pursuant to this definition, then the Fixed Charge Coverage Ratio shall be calculated giving pro forma effect thereto for such period as if such Investment, acquisition, disposition, discontinued operation, merger, amalgamation, consolidation or operational change had occurred at the beginning of the applicable four-quarter period. If since the beginning of such period any Restricted Subsidiary is designated an Unrestricted Subsidiary or any Unrestricted Subsidiary is designated a Restricted Subsidiary, then the Fixed Charge Coverage Ratio shall be calculated giving pro forma effect thereto for such period as if such designation had occurred at the beginning of the applicable four-quarter period.

For purposes of this definition, whenever pro forma effect is to be given to any event, the pro forma calculations shall be made in good faith by a responsible financial or accounting officer of Holdings. Any such pro forma calculation may include adjustments appropriate, in the reasonable good faith determination of Holdings as set forth in an Officers’ Certificate, to reflect (1) operating expense reductions and other operating improvements or synergies reasonably expected to result from the applicable event, and (2) all adjustments of the nature used in connection with the calculation of “Adjusted EBITDA” as set forth in “Summary Consolidated Financial, Reserve and Operating Data —Non-GAAP Financial Measures—Adjusted EBITDA” under “Offering Memorandum Summary” in the Offering Memorandum to the extent such adjustments, without duplication, continue to be applicable to such four-quarter period.

If any Indebtedness bears a floating rate of interest and is being given pro forma effect, the interest on such Indebtedness shall be calculated as if the rate in effect on the Calculation Date had been the applicable rate for the entire period (taking into account any Hedging Obligations applicable to such Indebtedness if such Hedging Obligation has a remaining term in excess of 12 months). Interest on a Capitalized Lease Obligation shall be deemed to accrue at an interest rate reasonably determined by a responsible financial or accounting officer of Holdings to be the rate of interest implicit in such Capitalized Lease Obligation in accordance with GAAP. For purposes of making the computation referred to above, interest on any Indebtedness under a revolving credit facility computed on a pro forma basis shall be computed based upon the average daily balance of such Indebtedness during the applicable period. Interest on Indebtedness that may optionally be determined at an interest rate based upon a factor of a prime or similar rate, a Eurocurrency interbank offered rate, or other rate, shall be deemed to have been based upon the rate actually chosen, or, if none, then based upon such optional rate chosen as Holdings may designate.

For purposes of this definition, any amount in a currency other than U.S. dollars will be converted to U.S. dollars based on the average exchange rate for such currency for the most recent twelve month period immediately prior to the date of determination in a manner consistent with that used in calculating EBITDA for the applicable period.

“Fixed Charges” means, with respect to any Person for any period, the sum, without duplication, of: (1) Consolidated Interest Expense (excluding amortization or write-off of deferred financing costs) of such Person for such period, and (2) all cash dividend payments (excluding items eliminated in consolidation) on any series of Preferred Stock or Disqualified Stock of such Person and its Restricted Subsidiaries.

“Foreign Subsidiary” means a Restricted Subsidiary that is (i) not organized or existing under the laws of the United States of America or any state thereof or the District of Columbia and (ii) has 50% or more of its consolidated assets located outside the United States or any territory thereof.

“GAAP” means generally accepted accounting principles in the United States set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as have been

approved by a significant segment of the accounting profession, which are in effect on the Issue Date. For the purposes of this Indenture, the term “consolidated” with respect to any Person shall mean such Person consolidated with its Restricted Subsidiaries, and shall not include any Unrestricted Subsidiary, but the interest of such Person in an Unrestricted Subsidiary will be accounted for as an Investment.

“Guarantee” means the guarantees of the Notes by the Guarantors.

“guarantee” means a guarantee (other than by endorsement of negotiable instruments for collection in the ordinary course of business), direct or indirect, in any manner (including, without limitation, letters of credit and reimbursement agreements in respect thereof), of all or any part of any Indebtedness or other obligations.

“Guarantors” means each of:

(1) Athlon Energy; and

(2) The Subsidiary Guarantors.

“Hedging Obligations” means, with respect to any Person, the obligations of such Person under:

(1) currency exchange, interest rate or commodity swap agreements (including commodity swaps, commodity options, forward commodity contracts, basis differential swaps, spot contracts, fixed-price physical delivery contracts or other similar agreements or arrangements in respect of Hydrocarbons), currency exchange, interest rate or commodity cap agreements and currency exchange, interest rate or commodity collar agreements; and

(2) other agreements or arrangements designed to protect such Person against fluctuations in currency exchange, interest rates or commodity prices.

Notwithstanding the foregoing, agreements or obligations to physically sell any commodity at any index-based price shall not be considered Hedging Obligations.

“holder” or “noteholder” means the Person in whose name a Note is registered on the Registrar’s books.

“Holdings” means Athlon Holdings LP, together with its successors or assigns.

“Hydrocarbons” means oil, natural gas, casinghead gas, drip gasoline, natural gasoline, condensate, distillate, liquid hydrocarbons, gaseous hydrocarbons and all constituents, elements or compounds thereof and products refined or processed therefrom.

“Incur” means issue, assume, guarantee, incur or otherwise become liable for; provided, however, that any Indebtedness or Capital Stock of a Person existing at the time such person becomes a Subsidiary (whether by merger, amalgamation, consolidation, acquisition or otherwise) shall be deemed to be Incurred by such Person at the time it becomes a Subsidiary.

“Indebtedness” means, with respect to any Person:

(1) the principal and premium (if any) of any indebtedness of such Person, whether or not contingent, (a) in respect of borrowed money, (b) evidenced by bonds, notes, debentures or similar instruments or letters of credit or bankers’ acceptances (or, without duplication, reimbursement agreements in respect thereof), (c) representing the deferred and unpaid purchase price of any property (except any such balance that constitutes (i) a trade payable or similar obligation to a trade creditor Incurred in the ordinary course of business, (ii) any earn-out obligations until such obligation becomes a liability on the balance sheet of such Person in accordance with GAAP and (iii) liabilities accrued in the ordinary course of business), which purchase price is due more than six months after the date of placing the property in service or taking delivery and title thereto, (d) in respect of Capitalized Lease Obligations, or (e) representing any Hedging Obligations, if and to the extent that any of the foregoing indebtedness would appear as a liability on a balance sheet (excluding the footnotes thereto) of such Person prepared in accordance with GAAP;

(2) to the extent not otherwise included, any obligation of such Person to be liable for, or to pay, as obligor, guarantor or otherwise, the obligations referred to in clause (1) of another Person (other than by endorsement of negotiable instruments for collection in the ordinary course of business); and

(3) to the extent not otherwise included, Indebtedness of another Person secured by a Lien on any asset owned by such Person (whether or not such Indebtedness is assumed by such Person); provided, however, that the amount of such Indebtedness will be the lesser of: (a) the Fair Market Value (as determined in good faith by Holdings) of such asset at such date of determination, and (b) the amount of such Indebtedness of such other Person;

provided, however, that notwithstanding the foregoing, Indebtedness shall be deemed not to include (1) Contingent Obligations Incurred in the ordinary course of business and not in respect of borrowed money; (2) deferred or prepaid revenues; (3) purchase price holdbacks in respect of a portion of the purchase price of an asset to satisfy warranty or other unperformed obligations of the respective seller; (4) Obligations under or in respect of Qualified Receivables Financing; (5) Production Payments and Reserve Sales; (6) any obligation of a Person in respect of a Farm-In Agreement or similar arrangement whereby such Person agrees to pay all or a share of the drilling, completion or other expenses of an exploratory or development well (which agreement may be subject to a maximum payment obligation, after which expenses are shared in accordance with the working or participation interest therein or in accordance with the agreement of the parties) or perform the drilling, completion or other operation on such well in exchange for an ownership interest in an oil or natural gas property; (7) any obligations under Hedging Obligations; provided that such agreements are entered into for bona fide hedging purposes of Holdings or its Restricted Subsidiaries (as determined in good faith by the Board of Directors or senior management of Holdings, whether or not accounted for as a hedge in accordance with GAAP) and, in the case of any foreign exchange contract, currency swap agreement, futures contract, option contract or other similar agreement, such agreements are related to business transactions of Holdings or its Restricted Subsidiaries entered into in the ordinary course of

business and, in the case of any interest rate protection agreement, interest rate future agreement, interest rate option agreement, interest rate swap agreement, interest rate cap agreement, interest rate collar agreement, interest rate hedge agreement or other similar agreement or arrangement, such agreements substantially correspond in terms of notional amount, duration and interest rates, as applicable, to Indebtedness of Holdings or its Restricted Subsidiaries Incurred without violation of this Indenture; (8) obligations in respect of surety and bonding requirements of Holdings and its Restricted Subsidiaries; and (9) in-kind obligations relating to net oil, natural gas liquids or natural gas balancing positions arising in the ordinary course of business.

Notwithstanding anything in this Indenture to the contrary, Indebtedness shall not include, and shall be calculated without giving effect to, the effects of Financial Accounting Standards Board Accounting Standards Codification 815 and related interpretations to the extent such effects would otherwise increase or decrease an amount of Indebtedness for any purpose under this Indenture as a result of accounting for any embedded derivatives created by the terms of such Indebtedness; and any such amounts that would have constituted Indebtedness under this Indenture but for the application of this sentence shall not be deemed an Incurrence of Indebtedness under this Indenture.

“Indenture” means this Indenture as amended or supplemented from time to time.

“Independent Financial Advisor” means an accounting, appraisal or investment banking firm or consultant, in each case of nationally recognized standing, that is, in the good faith determination of Holdings, qualified to perform the task for which it has been engaged.

“Interest Payment Date” has the meaning set forth in Exhibit A hereto.

“Investment Grade Rating” means a rating equal to or higher than Baa3 (or the equivalent) by Xxxxx’x and BBB- (or the equivalent) by S&P, or an equivalent rating by any other Rating Agency.

“Investment Grade Securities” means:

(1) securities issued or directly and fully guaranteed or insured by the U.S. government or any agency or instrumentality thereof (other than Cash Equivalents),

(2) securities that have a rating equal to or higher than Baa3 (or equivalent) by Xxxxx’x and BBB- (or equivalent) by S&P, but excluding any debt securities or loans or advances between and among Holdings and its Subsidiaries,

(3) investments in any fund that invests exclusively in investments of the type described in clauses (1) and (2) which fund may also hold immaterial amounts of cash pending investment and/or distribution, and

(4) corresponding instruments in countries other than the United States customarily utilized for high quality investments and in each case with maturities not exceeding two years from the date of acquisition.

“Investments” means, with respect to any Person, all investments by such Person in other Persons (including Affiliates) in the form of loans (including guarantees), advances or capital contributions (excluding accounts receivable, trade credit and advances to customers and commission, travel and similar advances to officers, employees and consultants made in the ordinary course of business), purchases or other acquisitions for consideration of Indebtedness, Equity Interests or other securities issued by any other Person and investments that are required by GAAP to be classified on the balance sheet of such Person in the same manner as the other investments included in this definition to the extent such transactions involve the transfer of cash or other property. For purposes of the definition of “Unrestricted Subsidiary” and Section 4.04:

(1) “Investments” shall include the portion (proportionate to Holdings’ equity interest in such Subsidiary) of the Fair Market Value (as determined in good faith by Holdings) of the net assets of a Subsidiary of Holdings at the time that such Subsidiary is designated an Unrestricted Subsidiary; provided, however, that upon a redesignation of such Subsidiary as a Restricted Subsidiary, Holdings shall be deemed to continue to have a permanent “Investment” in an Unrestricted Subsidiary equal to an amount (if positive) equal to:

(a) Holdings’ “Investment” in such Subsidiary at the time of such redesignation less

(b) the portion (proportionate to Holdings’ equity interest in such Subsidiary) of the Fair Market Value (as determined in good faith by Holdings) of the net assets of such Subsidiary at the time of such redesignation; and

(2) any property transferred to or from an Unrestricted Subsidiary shall be valued at its Fair Market Value (as determined in good faith by Holdings) at the time of such transfer, in each case as determined in good faith by the Board of Directors of Holdings.

“Issue Date” means the date on which the Notes are originally issued.

“Lien” means, with respect to any asset, any mortgage, lien, pledge, charge, security interest or similar encumbrance of any kind in respect of such asset, whether or not filed, recorded or otherwise perfected under applicable law (including any conditional sale or other title retention agreement, any lease in the nature thereof, any option or other agreement to sell or give a security interest in and any filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction); provided that in no event shall an operating lease be deemed to constitute a Lien.

“Management Group” means the group consisting of the directors, managers, executive officers and other management personnel of Holdings or any direct or indirect parent of Holdings, as the case may be, on the Issue Date together with (1) any new directors or managers whose election by such boards of directors or managers or whose nomination for election by the equity holders of Holdings or any direct or indirect parent of Holdings, as applicable, was approved by a vote of a majority of the directors or managers of Holdings or any direct or indirect parent of Holdings, as applicable, then still in office who were either directors

or managers on the Issue Date or whose election or nomination was previously so approved and (2) executive officers and other management personnel of Holdings or any direct or indirect parent of Holdings, as applicable, hired at a time when the directors or managers on the Issue Date together with the directors or managers so approved constituted a majority of the directors or managers of Holdings or any direct or indirect parent of Holdings, as applicable.

“Mandatory Redemption Event” means the first occurrence of either (a) the termination of all of the applicable purchase agreements at any time prior to the consummation of any of the Special Acquisitions or (b) if neither of the Special Acquisitions are consummated by July 2, 2014.

“Moody’s” means Xxxxx’x Investors Service, Inc. or any successor to the rating agency business thereof.

“Net Income” means, with respect to any Person, the net income (loss) of such Person and its Restricted Subsidiaries, determined in accordance with GAAP and before any reduction in respect of Preferred Stock dividends.

“Net Proceeds” means the aggregate cash proceeds received by Holdings or any Restricted Subsidiary in respect of any Asset Sale (including, without limitation, any cash received in respect of or upon the sale or other disposition of any Designated Non-cash Consideration received in any Asset Sale and any cash payments received by way of deferred payment of principal pursuant to a note or installment receivable or otherwise, but only as and when received, but excluding the assumption by the acquiring person of Indebtedness relating to the disposed assets or other consideration received in any other non-cash form), net of the direct costs relating to such Asset Sale and the sale or disposition of such Designated Non-cash Consideration (including, without limitation, legal, accounting and investment banking fees, and brokerage and sales commissions), and any relocation expenses Incurred as a result thereof, taxes paid or payable as a result thereof (including Tax Distributions and after taking into account any available tax credits or deductions and any tax sharing arrangements related solely to such disposition), amounts required to be applied to the repayment of principal, premium (if any) and interest on Indebtedness required (other than pursuant to Section 4.06(b)(i)) to be paid as a result of such transaction, amounts paid in connection with the termination of Hedging Obligations related to Indebtedness repaid with such proceeds or hedging oil, natural gas and natural gas liquid production in notional volumes corresponding to the Oil and Gas Properties subject to such Asset Sale, and any deduction of appropriate amounts to be provided by Holdings as a reserve in accordance with GAAP against any liabilities associated with the asset disposed of in such transaction and retained by Holdings after such sale or other disposition thereof, including, without limitation, pension and other post-employment benefit liabilities and liabilities related to environmental matters or against any indemnification obligations associated with such transaction.

“Net Working Capital” means (a) all current assets of Holdings and its Restricted Subsidiaries, except current assets from commodity price risk management activities arising in the ordinary course of the Oil and Gas Business less (b) all current liabilities of Holdings and its Restricted Subsidiaries, except current liabilities (i) associated with asset retirement obligations relating to Oil and Gas Properties, (ii) included in Indebtedness and (iii) any current liabilities

from commodity price risk management activities arising in the ordinary course of the Oil and Gas Business, in each case as set forth in the consolidated financial statements of Holdings prepared in accordance with GAAP.

“Notes Obligations” means Obligations in respect of the Notes and this Indenture.

“NYMEX” means the New York Mercantile Exchange.

“Obligations” means any principal, interest, penalties, fees, indemnifications, reimbursements (including, without limitation, reimbursement obligations with respect to letters of credit and bankers’ acceptances), damages and other liabilities payable under the documentation governing any Indebtedness; provided that Obligations with respect to the Notes shall not include fees or indemnifications in favor of third parties other than the Trustee and the holders of the Notes.

“Offering Memorandum” means the offering memorandum, dated April 16, 2014, relating to the issuance of the Initial Notes.

“Officer” means the Chairman of the Board, Chief Executive Officer, Chief Financial Officer, President, any Executive Vice President, Senior Vice President or Vice President, the Treasurer or the Secretary of Holdings.

“Officers’ Certificate” means a certificate signed on behalf of Holdings by two Officers of Holdings, one of whom must be the principal executive officer, the principal financial officer, the treasurer or the principal accounting officer of Holdings, which meets the requirements set forth in this Indenture.

“Oil and Gas Business” means:

(1) the business of acquiring, exploring, exploiting, developing, producing, operating and disposing of interests in oil, natural gas, natural gas liquids, liquefied natural gas and other Hydrocarbons and mineral properties or products produced in association with any of the foregoing;

(2) the business of gathering, marketing, distributing, treating, processing, storing, refining, selling and transporting of any production from such interests or properties and products produced in association therewith and the marketing of oil, natural gas, other Hydrocarbons and minerals obtained from unrelated Persons;

(3) any other related energy business, including power generation and electrical transmission business, directly or indirectly, from oil, natural gas and other Hydrocarbons and minerals produced substantially from properties in which Holdings or its Restricted Subsidiaries, directly or indirectly, participate;

(4) any business relating to oil field sales and service; and

(5) any business or activity relating to, arising from, or necessary, appropriate, incidental or ancillary to the activities described in the foregoing clauses (1) through (4) of this definition.

“Oil and Gas Properties” means all properties, including equity or other ownership interests therein, owned by a Person which contain or are believed to contain oil and natural gas reserves or other reserves of Hydrocarbons.

“Opinion of Counsel” means a written opinion from legal counsel who is acceptable to the Trustee. The counsel may be an employee of or counsel to Holdings.

“Pari Passu Indebtedness” means: (a) with respect to an Issuer, the Notes and any Indebtedness which ranks pari passu in right of payment to the Notes; and (b) with respect to any Guarantor, its Guarantee and any Indebtedness which ranks pari passu in right of payment to such Guarantor’s Guarantee.

“Permitted Business Investment” means any Investment and/or expenditure of a nature that is or shall have become customary in the Oil and Gas Business generally or in the geographic region in which such activities occur, including investments or expenditures for actively exploiting, exploring for, acquiring, developing, producing, processing, gathering, marketing, distributing, storing, or transporting oil, natural gas or other Hydrocarbons and minerals (including with respect to plugging and abandonment) through agreements, transactions, interests or arrangements which permit one to share risks or costs, comply with regulatory requirements regarding local ownership or satisfy other objectives customarily achieved through the conduct of the Oil and Gas Business jointly with third parties, including:

(1) Investments in ownership interests (including equity or other ownership interests) in oil, natural gas, other Hydrocarbons and minerals properties, liquefied natural gas facilities, processing facilities, gathering systems, pipelines, storage facilities or related systems or ancillary real property interests;

(2) Investments in the form of or pursuant to operating agreements, working interests, royalty interests, mineral leases, processing agreements, Farm-In Agreements, Farm-Out Agreements, contracts for the sale, transportation or exchange of oil, natural gas, other Hydrocarbons and minerals, production sharing agreements, participation agreements, development agreements, area of mutual interest agreements, unitization agreements, pooling agreements, joint bidding agreements, service contracts, joint venture agreements, partnership agreements (whether general or limited), subscription agreements, stock purchase agreements, stockholder agreements and other similar agreements (including for limited liability companies) with third parties; and

(3) Investments in direct or indirect ownership interests in drilling rigs and related equipment, including, without limitation, transportation equipment.

“Permitted Holders” means, at any time, each of (i) the Sponsors, (ii) the Management Group, (iii) any Person that has no material assets other than the Capital Stock of Holdings and, directly or indirectly, holds or acquires 100% of the total voting power of the Voting Stock of Holdings, and of which no other Person or group (within the meaning of

Section 13(d)(3) or Section 14(d)(2) of the Exchange Act, or any successor provision), other than any of the other Permitted Holders specified in clauses (i) and (ii) above, holds more than 50% of the total voting power of the Voting Stock thereof and (iv) any group (within the meaning of Section 13(d)(3) or Section 14(d)(2) of the Exchange Act, or any successor provision) the members of which include any of the Permitted Holders specified in clauses (i) and (ii) above and that, directly or indirectly, hold or acquire beneficial ownership of the Voting Stock of Holdings (a “Permitted Holder Group”), so long as (1) each member of the Permitted Holder Group has voting rights proportional to the percentage of ownership interests held or acquired by such member and (2) no Person or other “group” (other than Permitted Holders specified in clauses (i) and (ii) above) beneficially owns more than 50% on a fully diluted basis of the Voting Stock held by the Permitted Holder Group. Any Person or group whose acquisition of beneficial ownership constitutes a Change of Control in respect of which a Change of Control Offer is made in accordance with the requirements of this Indenture will thereafter, together with its Affiliates, constitute an additional Permitted Holder.

“Permitted Investments” means:

(1) any Investment in Holdings or any Restricted Subsidiary;

(2) any Investment in Cash Equivalents or Investment Grade Securities;

(3) any Investment by Holdings or any Restricted Subsidiary in a Person if as a result of such Investment (a) such Person becomes a Restricted Subsidiary, or (b) such Person, in one transaction or a series of related transactions, is merged, consolidated or amalgamated with or into, or transfers or conveys all or substantially all of its assets to, or is liquidated into, Holdings or a Restricted Subsidiary;

(4) any Investment in securities or other assets not constituting Cash Equivalents and received in connection with an Asset Sale made pursuant to Section 4.06 or any other disposition of assets not constituting an Asset Sale;

(5) any Investment existing on, or made pursuant to binding commitments existing on, the Issue Date or an Investment consisting of any extension, modification or renewal of any Investment existing on the Issue Date; provided that the amount of any such Investment may be increased (x) as required by the terms of such Investment as in existence on the Issue Date or (y) as otherwise permitted under this Indenture;

(6) advances to employees, taken together with all other advances made pursuant to this clause (6), not to exceed $10.0 million at any one time outstanding;

(7) any Investment acquired by Holdings or any Restricted Subsidiary (a) in exchange for any other Investment or accounts receivable held by Holdings or such Restricted Subsidiary in connection with or as a result of a bankruptcy, workout, reorganization or recapitalization of Holdings of such other Investment or accounts receivable, or (b) as a result of a foreclosure by Holdings or any Restricted Subsidiary with respect to any secured Investment or other transfer of title with respect to any secured Investment in default;

(8) Hedging Obligations permitted under Section 4.03(b)(x);

(9) any Investment by Holdings or any Restricted Subsidiary in a Similar Business having an aggregate Fair Market Value (as determined in good faith by Holdings), taken together with all other Investments made pursuant to this clause (9) that are at that time outstanding, not to exceed the greater of (x) $75.0 million and (y) 7.5% of Adjusted Consolidated Net Tangible Assets at the time of such Investment (with the Fair Market Value of each Investment being measured at the time made and without giving effect to subsequent changes in value); provided, however, that if any Investment pursuant to this clause (9) is made in any Person that is not Holdings or a Restricted Subsidiary at the date of the making of such Investment and such Person becomes Holdings or a Restricted Subsidiary after such date, such Investment shall thereafter be deemed to have been made pursuant to clause (1) above and shall cease to have been made pursuant to this clause (9) for so long as such Person continues to be Holdings or a Restricted Subsidiary;

(10) additional Investments by Holdings or any Restricted Subsidiary having an aggregate Fair Market Value (as determined in good faith by Holdings), taken together with all other Investments made pursuant to this clause (10) that are at that time outstanding, not to exceed the greater of (x) $75.0 million and (y) 7.5% of Adjusted Consolidated Net Tangible Assets at the time of such Investment (with the Fair Market Value of each Investment being measured at the time made and without giving effect to subsequent changes in value); provided, however, that if any Investment pursuant to this clause (10) is made in any Person that is not Holdings or a Restricted Subsidiary at the date of the making of such Investment and such Person becomes Holdings or a Restricted Subsidiary after such date, such Investment shall thereafter be deemed to have been made pursuant to clause (1) above and shall cease to have been made pursuant to this clause (10) for so long as such Person continues to be Holdings or a Restricted Subsidiary;

(11) loans and advances to officers, directors, managers or employees for business-related travel expenses, moving expenses and other similar expenses, in each case Incurred in the ordinary course of business or consistent with past practice or to fund such person’s purchase of Equity Interests of Holdings or any direct or indirect parent of Holdings;

(12) Investments the payment for which consists of Equity Interests of Holdings (other than Disqualified Stock) or any direct or indirect parent of Holdings, as applicable; provided, however, that such Equity Interests will not increase the amount available for Restricted Payments under clause (3) of the definition of “Cumulative Credit”;

(13) any transaction to the extent it constitutes an Investment that is permitted by and made in accordance with the provisions of Section 4.07(b) (except transactions described in clauses (ii), (iv), (vi), (viii)(B) and (xv) of Section 4.07(b));

(14) Investments consisting of the licensing or contribution of intellectual property pursuant to joint marketing arrangements with other Persons;

(15) (x) guarantees issued in accordance with Section 4.03 and Section 4.11 including, without limitation, any guarantee or other obligation issued or Incurred under the Credit Agreement in connection with any letter of credit issued for the account of Holdings or any of its Subsidiaries (including with respect to the issuance of, or payments in respect of drawings under, such letters of credit) and (y) guarantees of performance or other obligations (other than Indebtedness) arising in the ordinary course in the Oil and Gas Business, including obligations under Hydrocarbon exploration, development, joint operating and related agreements and licenses, concessions or operating leases related to the Oil and Gas Business;

(16) Investments consisting of or to finance purchases and acquisitions of inventory, supplies, materials, services or equipment or purchases of contract rights or licenses or leases of intellectual property;

(17) any Investment in a Receivables Subsidiary or any Investment by a Receivables Subsidiary in any other Person in connection with a Qualified Receivables Financing, including Investments of funds held in accounts permitted or required by the arrangements governing such Qualified Receivables Financing or any related Indebtedness;

(18) any Investment in an entity which is not a Restricted Subsidiary to which a Restricted Subsidiary sells accounts receivable pursuant to a Receivables Financing;

(19) additional Investments in joint ventures not to exceed, at any one time in the aggregate outstanding under this clause (19), $75.0 million (with the Fair Market Value of each Investment being measured at the time such Investment is made and without giving effect to subsequent changes in value); provided, however, that if any Investment pursuant to this clause (19) is made in any Person that is not Holdings or a Restricted Subsidiary at the date of the making of such Investment and such Person becomes Holdings or a Restricted Subsidiary after such date, such Investment shall thereafter be deemed to have been made pursuant to clause (1) above and shall cease to have been made pursuant to this clause (19) for so long as such Person continues to be Holdings or a Restricted Subsidiary;

(20) Investments of a Restricted Subsidiary acquired after the Issue Date or of an entity merged into, amalgamated with, or consolidated with Holdings or a Restricted Subsidiary in a transaction that is not prohibited by Section 5.01 after the Issue Date to the extent that such Investments were not made in contemplation of such acquisition, merger, amalgamation or consolidation and were in existence on the date of such acquisition, merger, amalgamation or consolidation;

(21) any Investment in any Subsidiary of Holdings or any joint venture in connection with intercompany cash management arrangements or related activities arising in the ordinary course of business; and

(22) Permitted Business Investments.

“Permitted Liens” means, with respect to any Person:

(1) pledges or deposits by such Person under workmen’s compensation laws, unemployment insurance laws or similar legislation, or good faith deposits in connection with bids, tenders, contracts (other than for the payment of Indebtedness) or leases to which such Person is a party, or deposits to secure plugging and abandonment obligations or public or statutory obligations of such Person or deposits of cash or U.S. government bonds to secure surety or appeal bonds to which such Person is a party, or deposits as security for contested taxes or import duties or for the payment of rent, in each case Incurred in the ordinary course of business;

(2) Liens imposed by law, such as landlord’s, carriers’, warehousemen’s, mechanics’, materialmen’s, repairmen’s, construction or other like Liens securing obligations that are not overdue by more than 30 days or that are being contested in good faith by appropriate proceedings or other Liens arising out of judgments or awards against such Person with respect to which such Person shall then be proceeding with an appeal or other proceedings for review;

(3) Liens for taxes, assessments or other governmental charges not yet due or payable or that are being contested in good faith by appropriate proceedings;

(4) Liens (A) in favor of issuers of performance and surety bonds or bid bonds or with respect to other regulatory requirements or letters of credit issued pursuant to the request of and for the account of such Person in the ordinary course of its business and (B) securing other obligations in respect of surety and bonding requirements;

(5) minor survey exceptions, minor encumbrances, easements or reservations of, or rights of others for, licenses, rights-of-way, sewers, electric lines, telegraph and telephone lines and other similar purposes, or zoning or other restrictions as to the use of real properties or Liens incidental to the conduct of the business of such Person or to the ownership of its properties which were not Incurred in connection with Indebtedness and which do not in the aggregate materially adversely affect the value of said properties or materially impair their use in the operation of the business of such Person;

(6) (A) Liens on assets of the Issuers or any Restricted Subsidiary securing Credit Agreements and other Obligations permitted to be Incurred pursuant to Section 4.03; and

(B) Liens securing Indebtedness permitted to be Incurred pursuant to clause (iv), (xii), (xvi) or (xx) of Section 4.03(b) (provided that in the case of clause (xx), such Lien does not extend to the property or assets of any Subsidiary of Holdings other than a Restricted Subsidiary that is not a Subsidiary Guarantor);

(7) Liens existing on the Issue Date (other than Liens in favor of the lenders under the Credit Agreement);

(8) Liens on assets, property or shares of stock of a Person at the time such Person becomes a Subsidiary; provided, however, that such Liens are not created or Incurred in connection with, or in contemplation of, such other Person becoming such a

Subsidiary; provided, further, however, that such Liens may not extend to any other property owned by Holdings or any Restricted Subsidiary;

(9) Liens on assets or property at the time Holdings or a Restricted Subsidiary acquired the assets or property, including any acquisition by means of a merger, amalgamation or consolidation with or into Holdings or any Restricted Subsidiary; provided, however, that such Liens (other than Liens to secure Indebtedness Incurred pursuant to Section 4.03(b)(xvi)) are not created or Incurred in connection with, or in contemplation of, such acquisition; provided, further, however, that the Liens (other than Liens to secure Indebtedness Incurred pursuant to Section 4.03(b)(xvi)) may not extend to any other property owned by Holdings or any Restricted Subsidiary (other than pursuant to after-acquired property clauses in effect with respect to such Lien at the time of acquisition on property of the type that would have been subject to such Lien notwithstanding the occurrence of such acquisition);

(10) Liens securing Indebtedness or other obligations of Holdings or a Restricted Subsidiary owing to Holdings or another Restricted Subsidiary permitted to be Incurred in accordance with Section 4.03;

(11) Liens securing Hedging Obligations not Incurred in violation of this Indenture; provided that with respect to Hedging Obligations relating to Indebtedness, such Lien extends only to the property securing such Indebtedness;

(12) Liens on specific items of inventory or other goods and proceeds of any Person securing such Person’s obligations in respect of bankers’ acceptances issued or created for the account of such Person to facilitate the purchase, shipment or storage of such inventory or other goods;

(13) leases and subleases of real property which do not materially interfere with the ordinary conduct of the business of Holdings or any of the Restricted Subsidiaries;

(14) Liens arising from Uniform Commercial Code financing statement filings regarding operating leases entered into by Holdings and the Restricted Subsidiaries in the ordinary course of business;

(15) Liens in favor of Holdings or any Subsidiary Guarantor;

(16) Liens on accounts receivable and related assets of the type specified in the definition of “Receivables Financing” Incurred in connection with a Qualified Receivables Financing;

(17) deposits made in the ordinary course of business to secure liability to insurance carriers;

(18) Liens on the Equity Interests of Unrestricted Subsidiaries;

(19) grants of software and other technology licenses in the ordinary course of business;

(20) Liens to secure any refinancing, refunding, extension, renewal or replacement (or successive refinancings, refundings, extensions, renewals or replacements) as a whole, or in part, of any Indebtedness secured by any Lien referred to in the foregoing clauses (6), (7), (8), (9), (10), (11) and (15); provided, however, that (x) such new Lien shall be limited to all or part of the same property that secured the original Lien (plus improvements on such property), and (y) the Indebtedness secured by such Lien at such time is not increased to any amount greater than the sum of (A) the outstanding principal amount or, if greater, committed amount of the Indebtedness described under clauses (6), (7), (8), (9), (10), (11) and (15) at the time the original Lien became a Permitted Lien under this Indenture, and (B) an amount necessary to pay any fees and expenses, including premiums, related to such refinancing, refunding, extension, renewal or replacement;

(21) Liens on equipment of Holdings or any Restricted Subsidiary granted in the ordinary course of business to Holdings’ or such Restricted Subsidiary’s client at which such equipment is located;

(22) judgment and attachment Liens not giving rise to an Event of Default and notices of lis pendens and associated rights related to litigation being contested in good faith by appropriate proceedings and for which adequate reserves have been made;

(23) Liens arising out of conditional sale, title retention, consignment or similar arrangements for the sale of goods entered into in the ordinary course of business;

(24) Liens (A) Incurred to secure cash management services or to implement cash pooling arrangements in the ordinary course of business and (B) on cash and Cash Equivalents and letters of credit securing any surety and bonding requirements;

(25) other Liens securing obligations the outstanding principal amount of which does not, taken together with the principal amount of all other obligations secured by Liens Incurred under this clause (25) that are at that time outstanding, exceed the greater of $75.0 million and 7.5% Adjusted Consolidated Net Tangible Assets at the time of Incurrence;

(26) any encumbrance or restriction (including put and call arrangements) with respect to Capital Stock of any joint venture or similar arrangement pursuant to any joint venture or similar agreement;

(27) any amounts held by a trustee in the funds and accounts under an indenture securing any revenue bonds issued for the benefit of Holdings or any Restricted Subsidiary, under any indenture issued in escrow pursuant to customary escrow arrangements pending the release thereof, or under any indenture pursuant to customary discharge, redemption or defeasance provisions;

(28) Liens arising by virtue of any statutory or common law provisions relating to banker’s Liens, rights of set-off or similar rights and remedies as to deposit accounts or other funds maintained with a depositary or financial institution;

(29) Liens arising out of judgments or awards against such Person with respect to which such Person shall then be proceeding with any appeal or other proceedings for review;

(30) Liens (i) in favor of credit card companies pursuant to agreements therewith and (ii) in favor of customers;

(31) Liens in respect of Production Payments and Reserve Sales;

(32) Liens arising under Farm-Out Agreements, Farm-In Agreements, division orders, contracts for the sale, purchase, exchange, transportation, gathering or processing of Hydrocarbons, unitizations and pooling designations, declarations, orders and agreements, development agreements, joint venture agreements, partnership agreements, operating agreements, royalties, royalty trusts, master limited partnerships, working interests, net profits interests, joint interest billing arrangements, participation agreements, production sales contracts, area of mutual interest agreements, natural gas balancing or deferred production agreements, injection, repressuring and recycling agreements, salt water or other disposal agreements, seismic or geophysical permits or agreements, and other agreements which are customary in the Oil and Gas Business; provided, however, in all instances that such Liens are limited to the assets that are the subject of the relevant agreement, program, order, trust, partnership or contract;

(33) Liens on pipelines or pipeline facilities that arise by operation of law; and

(34) any (a) interest or title of a lessor or sublessor under any lease, liens reserved in oil, natural gas or other Hydrocarbons, minerals, leases for bonus, royalty or rental payments and for compliance with the terms of such leases; (b) restriction or encumbrance that the interest or title of such lessor or sublessor may be subject to (including, without limitation, ground leases or other prior leases of the demised premises, mortgages, mechanics’ liens, tax liens and easements); or (c) subordination of the interest of the lessee or sublessee under such lease to any restrictions or encumbrance referred to in the preceding clause (b).

“Person” means any individual, corporation, partnership, limited liability company, joint venture, association, joint-stock company, trust, unincorporated organization, government or any agency or political subdivision thereof or any other entity.

“Preferred Stock” means any Equity Interest with preferential right of payment of dividends or upon liquidation, dissolution, or winding up.

“Production Payments and Reserve Sales” means the grant or transfer by Holdings or a Restricted Subsidiary to any Person of a royalty, overriding royalty, net profits interest, production payment (whether volumetric or dollar-denominated), partnership or other interest in Oil and Gas Properties, reserves or the right to receive all or a portion of the

production or the proceeds from the sale of production attributable to such properties where the holder of such interest has recourse solely to such production or proceeds of production, subject to the obligation of the grantor or transferor to operate and maintain, or cause the subject interests to be operated and maintained, in a reasonably prudent manner or other customary standard or subject to the obligation of the grantor or transferor to indemnify for environmental, title or other matters customary in the Oil and Gas Business, including any such grants or transfers.

“Qualified Receivables Financing” means any Receivables Financing of a Receivables Subsidiary that meets the following conditions:

(1) the Board of Directors of Holdings shall have determined in good faith that such Qualified Receivables Financing (including financing terms, covenants, termination events and other provisions) is in the aggregate economically fair and reasonable to Holdings and the Receivables Subsidiary;

(2) all sales of accounts receivable and related assets to the Receivables Subsidiary are made at Fair Market Value (as determined in good faith by Holdings); and

(3) the financing terms, covenants, termination events and other provisions thereof shall be market terms (as determined in good faith by Holdings) and may include Standard Securitization Undertakings.

The grant of a security interest in any accounts receivable of Holdings or any Restricted Subsidiary (other than a Receivables Subsidiary) to secure Bank Indebtedness, Indebtedness in respect of the Notes or any Refinancing Indebtedness with respect to the Notes shall not be deemed a Qualified Receivables Financing.

“Rating Agency” means (1) each of Xxxxx’x and S&P and (2) if Xxxxx’x or S&P ceases to rate the Notes for reasons outside of Holdings’ control, a “nationally recognized statistical rating organization” within the meaning of Rule 15cs-1(c)(2)(vi)(F) under the Exchange Act selected by Holdings or any direct or indirect parent of Holdings as a replacement agency for Xxxxx’x or S&P, as the case may be.

“Rating Event” means, with respect to the Notes, (i) the rating of such Notes is lowered by each Rating Agency on any day during the period (the “Trigger Period”) commencing on the earlier of (a) the occurrence of a Change of Control and (b) the first public notice of Holdings’ intention to effect a Change of Control, and ending 60 days following consummation of such Change of Control, and (ii) each Rating Agency assigns the Notes a rating that is not an Investment Grade Rating on any day during the Trigger Period; provided that a Rating Event will not be deemed to have occurred in respect of a particular Change of Control (and thus will not be deemed a Rating Event for purposes of the definition of Change of Control Triggering Event) if each Rating Agency making the reduction in rating does not publicly announce or confirm or inform the Trustee in writing at our request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the Change of Control (whether or not the applicable Change of Control has occurred at the time of the Rating Event). If a Rating Agency is not providing a rating for the

Notes at the commencement of, or ceases to provide a rating for the Notes during, such period, the Notes will be deemed to have been assigned a rating that is an Investment Grade Rating by such Rating Agency during such period.

“Receivables Fees” means distributions or payments made directly or by means of discounts with respect to any participation interests issued or sold in connection with, and all other fees paid to a Person that is not a Restricted Subsidiary in connection with, any Receivables Financing.

“Receivables Financing” means any transaction or series of transactions that may be entered into by Holdings or any of its Subsidiaries pursuant to which Holdings or any of its Subsidiaries may sell, convey or otherwise transfer to (a) a Receivables Subsidiary (in the case of a transfer by Holdings or any of its Subsidiaries); and (b) any other Person (in the case of a transfer by a Receivables Subsidiary), or may grant a security interest in, any accounts receivable (whether now existing or arising in the future) of Holdings or any of its Subsidiaries, and any assets related thereto including, without limitation, all collateral securing such accounts receivable, all contracts and all guarantees or other obligations in respect of such accounts receivable, proceeds of such accounts receivable and other assets which are customarily transferred or in respect of which security interests are customarily granted in connection with asset securitization transactions involving accounts receivable and any Hedging Obligations entered into by Holdings or any such Subsidiary in connection with such accounts receivable.

“Receivables Repurchase Obligation” means any obligation of a seller of receivables in a Qualified Receivables Financing to repurchase receivables arising as a result of a breach of a representation, warranty or covenant or otherwise, including as a result of a receivable or portion thereof becoming subject to any asserted defense, dispute, off-set or counterclaim of any kind as a result of any action taken by, any failure to take action by or any other event relating to the seller.

“Receivables Subsidiary” means a Wholly Owned Restricted Subsidiary (or another Person formed for the purposes of engaging in Qualified Receivables Financing with Holdings in which Holdings or any Subsidiary of Holdings makes an Investment and to which Holdings or any such Subsidiary transfers accounts receivable and related assets) which engages in no activities other than in connection with the financing of accounts receivable of Holdings and its Subsidiaries, all proceeds thereof and all rights (contractual or other), collateral and other assets relating thereto, and any business or activities incidental or related to such business, and which is designated by the Board of Directors of Holdings (as provided below) as a Receivables Subsidiary and:

(a) no portion of the Indebtedness or any other obligations (contingent or otherwise) of which (i) is guaranteed by Holdings or any other Subsidiary of Holdings (excluding guarantees of obligations (other than the principal of and interest on, Indebtedness) pursuant to Standard Securitization Undertakings), (ii) is recourse to or obligates Holdings or any other Subsidiary in any way other than pursuant to Standard Securitization Undertakings, or (iii) subjects any property or asset of Holdings or any other Subsidiary, directly or indirectly, contingently or otherwise, to the satisfaction thereof, other than pursuant to Standard Securitization Undertakings;

(b) with which neither Holdings nor any Subsidiary has any material contract, agreement, arrangement or understanding other than on terms which Holdings reasonably believes to be no less favorable to Holdings or such Subsidiary than those that might be obtained at the time from Persons that are not Affiliates of Holdings; and

(c) to which neither Holdings nor any Subsidiary has any obligation to maintain or preserve such entity’s financial condition or cause such entity to achieve certain levels of operating results.

Any such designation by the Board of Directors of Holdings shall be evidenced to the Trustee by filing with the Trustee a certified copy of the resolution of the Board of Directors of Holdings giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the foregoing conditions.

“Record Date” has the meaning specified in Exhibit A hereto.

“Restricted Investment” means an Investment other than a Permitted Investment.

“Restricted Subsidiary” means, with respect to any Person, any Subsidiary of such Person other than an Unrestricted Subsidiary of such Person. Unless otherwise indicated in this Indenture, all references to Restricted Subsidiaries shall mean Restricted Subsidiaries of Holdings.

“S&P” means Standard & Poor’s Ratings Group or any successor to the rating agency business thereof.

“Sale/Leaseback Transaction” means an arrangement relating to property now owned or hereafter acquired by Holdings or a Restricted Subsidiary whereby Holdings or such Restricted Subsidiary transfers such property to a Person and Holdings or such Restricted Subsidiary leases it from such Person, other than leases between Holdings and a Restricted Subsidiary or between Restricted Subsidiaries.

“SEC” means the Securities and Exchange Commission.

“Secured Indebtedness” means any Consolidated Total Indebtedness secured by a Lien.

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations of the SEC promulgated thereunder.

“Senior Debt” means

(1) all Indebtedness of Holdings or any Restricted Subsidiary outstanding under the Credit Agreement and all Hedging Obligations with respect thereto;

(2) the 2021 Senior Notes;

(3) any other Indebtedness (including the Credit Agreement) of Holdings or any Restricted Subsidiary permitted to be incurred under the terms of this Indenture, unless the instrument under which such Indebtedness is incurred expressly provides that it is subordinated in right of payment to the notes or any Subsidiary Guarantee; and

(4) all Obligations with respect to the items listed in the preceding clauses (1), (2) and (3).

Notwithstanding anything to the contrary in the preceding sentence, Senior Debt will not include:

(a) any intercompany Indebtedness of Holdings or any of its Restricted Subsidiaries; or

(b) any Indebtedness that is incurred in violation of this Indenture.

For the avoidance of doubt, ‘‘Senior Debt’’ will not include any trade payables or taxes owed or owing by Holdings or any Restricted Subsidiary.

“Significant Subsidiary” means any Restricted Subsidiary that would be a “Significant Subsidiary” of Holdings within the meaning of Rule 1-02 under Regulation S-X promulgated by the SEC (or any successor provision).

“Similar Business” means a business, the majority of whose revenues are derived from the activities of Holdings and its Subsidiaries as of the Issue Date or any business or activity that is reasonably similar or complementary thereto or a reasonable extension, development or expansion thereof or ancillary thereto.

“Special Acquisitions” means the multiple purchase and sale agreements that Holdings entered into with unrelated third parties on April 8, 2014 to acquire certain oil and natural gas properties and related assets in the Permian Basin of West Texas for a combined purchase price of $668 million.

“Special Redemption” means either a Special Mandatory Redemption or a Special Optional Redemption.

“Special Redemption Date” means the earlier of (a) the last Business Day that is on or before the 15th day after a Mandatory Redemption Event or (b) any other Business Day selected by the Issuers and set forth in the notice of redemption, with respect to a Special Redemption, given in accordance with the provisions of this Indenture.

“Sponsors” means (i) the Apollo Funds, Apollo Global Management, LLC and any of their respective Affiliates other than any portfolio companies (collectively, the “Equity Investor”) and (ii) any Person that forms a group (within the meaning of Section 13(d)(3) or Section 14(d)(2) of the Exchange Act, or any successor provision) with the Equity Investor; provided that the Equity Investor (x) owns a majority of the voting power and (y) controls a majority of the Board of Directors of Holdings.

“Standard Securitization Undertakings” means representations, warranties, covenants, indemnities and guarantees of performance entered into by Holdings or any Subsidiary thereof which Holdings has determined in good faith to be customary in a Receivables Financing including, without limitation, those relating to the servicing of the assets of a Receivables Subsidiary, it being understood that any Receivables Repurchase Obligation shall be deemed to be a Standard Securitization Undertaking.

“Stated Maturity” means, with respect to any security, the date specified in such security as the fixed date on which the final payment of principal of such security is due and payable, including pursuant to any mandatory redemption provision (but excluding any provision providing for the repurchase of such security at the option of the holder thereof upon the happening of any contingency beyond the control of the issuer unless such contingency has occurred).

“Subordinated Indebtedness” means (a) with respect to an Issuer, any Indebtedness of such Issuer which is by its terms subordinated in right of payment to the Notes, and (b) with respect to any Subsidiary Guarantor, any Indebtedness of such Subsidiary Guarantor which is by its terms subordinated in right of payment to its Subsidiary Guarantee.

“Subsidiary” means, with respect to any Person, (1) any corporation, association or other business entity (other than a partnership, joint venture or limited liability company) of which more than 50% of the total voting power of shares of Capital Stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees thereof is at the time of determination owned or controlled, directly or indirectly, by such Person or one or more of the other Subsidiaries of that Person or a combination thereof, and (2) any partnership, joint venture or limited liability company of which (x) more than 50% of the capital accounts, distribution rights, total equity and voting interests or general and limited partnership interests, as applicable, are owned or controlled, directly or indirectly, by such Person or one or more of the other Subsidiaries of that Person or a combination thereof, whether in the form of membership, general, special or limited partnership interests or otherwise, and (y) such Person or any Subsidiary of such Person is a controlling general partner or otherwise controls such entity.

“Subsidiary Guarantee” means any guarantee of the obligations of the Issuers under this Indenture and the Notes by any Subsidiary Guarantor in accordance with the provisions of this Indenture.

“Subsidiary Guarantor” means any Subsidiary that Incurs a Subsidiary Guarantee; provided that upon the release or discharge of such Person from its Subsidiary Guarantee in accordance with this Indenture, such Subsidiary ceases to be a Subsidiary Guarantor.

“Suspension Period” means the period of time between a Covenant Suspension Event and the related Reversion Date.

“Tax Distributions” means any distributions described in Section 4.04(b)(xii).

“TIA” means the Trust Indenture Act of 1939 (15 U.S.C. Sections 77aaa-77bbbb) as in effect on the date of this Indenture.

“Total Assets” means the total consolidated assets of Holdings and the Restricted Subsidiaries, as shown on the most recent balance sheet of Holdings, without giving effect to any amortization of the amount of intangible assets since December 31, 2013, calculated on a pro forma basis after giving effect to any subsequent acquisition or disposition of a Person or business.

“Treasury Rate” means, as of the applicable redemption date, as determined by the Issuers, the yield to maturity as of such redemption date of United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two Business Days prior to either, at the sole discretion of the Issuers, (a) such redemption date or (b) the date a notice of redemption is delivered (or, if such Statistical Release is no longer published, any publicly available source of similar market data)) most nearly equal to the period from such redemption date to May 1, 2017; provided, however, that if the period from such redemption date to May 1, 2017, as applicable, is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used.

“Trust Officer” means:

(1) any officer within the corporate trust department of the Trustee, including any vice president, assistant vice president, assistant secretary, assistant treasurer, trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the Persons who at the time shall be such officers, respectively, or to whom any corporate trust matter is referred because of such person’s knowledge of and familiarity with the particular subject, and

(2) who shall have direct responsibility for the administration of this Indenture.

“Trustee” means the party named as such in this Indenture until a successor replaces it and, thereafter, means the successor.

“Uniform Commercial Code” or “UCC” means the New York Uniform Commercial Code as in effect from time to time.

“Unrestricted Subsidiary” means:

(1) any Subsidiary of Holdings that at the time of determination shall be designated an Unrestricted Subsidiary by the Board of Directors of Holdings in the manner provided below; and

(2) any Subsidiary of an Unrestricted Subsidiary;

Holdings may designate any Subsidiary of Holdings (including any newly acquired or newly formed Subsidiary) to be an Unrestricted Subsidiary unless such Subsidiary or any of its Subsidiaries owns any Equity Interests or Indebtedness of, or owns or holds any Lien on any property of, Holdings or any other Subsidiary of Holdings that is not a Subsidiary of the Subsidiary to be so designated; provided, however, that the Subsidiary to be so designated and its Subsidiaries do not at the time of designation have and do not thereafter Incur any Indebtedness pursuant to which the lender has recourse to any of the assets of Holdings or any of the Restricted Subsidiaries (other than pursuant to customary Liens on related arrangements under any oil and natural gas royalty trust or master limited partnership); provided, further, however, that either:

(a) the Subsidiary to be so designated has total consolidated assets of $1,000 or less; or

(b) if such Subsidiary has consolidated assets greater than $1,000, then such designation would be permitted under Section 4.04.

Holdings may designate any Unrestricted Subsidiary to be a Restricted Subsidiary; provided, however, that immediately after giving effect to such designation:

(x) (1) Holdings could Incur $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.03(a) or (2) the Fixed Charge Coverage Ratio of Holdings and its Restricted Subsidiaries would be no less than such ratio immediately prior to such designation, in each case on a pro forma basis taking into account such designation, and

(y) no Event of Default shall have occurred and be continuing.

Any such designation by Holdings shall be evidenced to the Trustee by promptly filing with the Trustee a copy of the resolution of the Board of Directors or any committee thereof of Holdings giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the foregoing provisions.

“U.S. Government Obligations” means securities that are:

(1) direct obligations of the United States of America for the timely payment of which its full faith and credit is pledged, or

(2) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America, the timely payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America,

which, in each case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depositary receipt issued by a bank (as defined in Section 3(a)(2) of the Securities Act) as custodian with respect to any such U.S. Government Obligations or a

specific payment of principal of or interest on any such U.S. Government Obligations held by such custodian for the account of the holder of such depositary receipt; provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depositary receipt from any amount received by the custodian in respect of the U.S. Government Obligations or the specific payment of principal of or interest on the U.S. Government Obligations evidenced by such depositary receipt.

“Volumetric Production Payments” means production payment obligations recorded as deferred revenue in accordance with GAAP, together with all undertaking and obligations in connection therewith.

“Voting Stock” of any Person as of any date means the Capital Stock of such Person that is at the time entitled to vote in the election of the Board of Directors of such Person.

“Weighted Average Life to Maturity” means, when applied to any Indebtedness or Disqualified Stock or Preferred Stock, as the case may be, at any date, the quotient obtained by dividing (1) the sum of the products of the number of years from the date of determination to the date of each successive scheduled principal payment of such Indebtedness or redemption or similar payment with respect to such Disqualified Stock or Preferred Stock multiplied by the amount of such payment, by (2) the sum of all such payments.

“Wholly Owned Restricted Subsidiary” is any Wholly Owned Subsidiary that is a Restricted Subsidiary.

“Wholly Owned Subsidiary” of any Person means a Subsidiary of such Person 100% of the outstanding Capital Stock or other ownership interests of which (other than directors’ qualifying shares or shares required pursuant to applicable law) shall at the time be owned by such Person or by one or more Wholly Owned Subsidiaries of such Person.

SECTION 1.02 Other Definitions.

Term		Section
$		1.03(j)
Alternate Offer		4.08(f)
Affiliate Transaction		4.07(a)
Agent Members		Appendix A
Asset Sale Offer		4.06(b)(iii)
Bankruptcy Law		6.01
Change of Control Offer		4.08(b)
Change of Control Payment		4.08(a)
Co-Issuer		Preamble
covenant defeasance option		8.01(b)
Covenant Suspension Event		4.15
Custodian		6.01
Definitive Note		Appendix A
Depositary		Appendix A
Event of Default		6.01

Term		Section
Excess Proceeds		4.06(b)(iii)
Global Notes		Appendix A
Global Notes Legend		Appendix A
Guaranteed Obligations		12.01(a)
Holdings		Preamble
IAI		Appendix A
Increased Amount		4.12(d)
Initial Notes		Preamble
Initial Purchasers		Appendix A
Issuers		Preamble
legal defeasance option		8.01(b)
Notes		Preamble
Notes Custodian		Appendix A
Notice of Default		6.01
Offer Period		4.06(d)
Paying Agent		2.04(a)
protected purchaser		2.08
QIB		Appendix A
Refinancing Indebtedness		4.03(b)(xv)
Refunding Capital Stock		4.04(b)(ii)
Registrar		2.04(a)
Regulation S		Appendix A
Regulation S Global Notes		Appendix A
Regulation S Notes		Appendix A
Restricted Notes Legend		Appendix A
Restricted Payments		Section 4.04(a)
Restricted Period		Appendix A
Retired Capital Stock		4.04(b)(ii)
Reversion Date		4.15
Rule 144A		Appendix A
Rule 144A Global Notes		Appendix A
Rule 144A Notes		Appendix A
Rule 501		Appendix A
Second Commitment		4.06(b)(iii)
Successor Holdco		5.01(a)(i)
Special Mandatory Redemption		Section 3.09
Special Optional Redemption		Section 3.09
Special Redemption Price		Section 3.09
Successor Subsidiary Guarantor		5.01(b)(i)
Suspended Covenants		4.15
Transfer		5.01(b)(ii)
Transfer Restricted Definitive Notes		Appendix A
Transfer Restricted Global Notes		Appendix A
Transfer Restricted Notes		Appendix A
U.S. dollars		1.03(j)

Term		Section
Unrestricted Definitive Notes		Appendix A
Unrestricted Global Notes		Appendix A

SECTION 1.03 Rules of Construction. Unless the context otherwise requires:

(a) a term has the meaning assigned to it;

(b) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

(d) “including” means including without limitation;

(e) words in the singular include the plural and words in the plural include the singular;

(f) unsecured Indebtedness shall not be deemed to be subordinate or junior to Secured Indebtedness merely by virtue of its nature as unsecured Indebtedness;

(g) the principal amount of any non-interest bearing or other discount security at any date shall be the principal amount thereof that would be shown on a balance sheet of the issuer dated such date prepared in accordance with GAAP;

(h) the principal amount of any Preferred Stock shall be (i) the maximum liquidation value of such Preferred Stock or (ii) the maximum mandatory redemption or mandatory repurchase price with respect to such Preferred Stock, whichever is greater;

(i) unless otherwise specified herein, all accounting terms used herein shall be interpreted, all accounting determinations hereunder shall be made, and all financial statements required to be delivered hereunder shall be prepared in accordance with GAAP; and

(j) “$” and “U.S. dollars” each refer to United States dollars, or such other money of the United States of America that at the time of payment is legal tender for payment of public and private debts.

ARTICLE II

THE NOTES

SECTION 2.01 Amount of Notes. The aggregate principal amount of Notes which may be authenticated and delivered under this Indenture on the Issue Date is $650,000,000.

The Issuers may from time to time after the Issue Date issue Additional Notes under this Indenture in an unlimited principal amount, so long as (i) the Incurrence of the

Indebtedness represented by such Additional Notes is at such time permitted by Section 4.03 and (ii) such Additional Notes are issued in compliance with the other applicable provisions of this Indenture. With respect to any Additional Notes issued after the Issue Date (except for Notes authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Notes pursuant to Section 2.07, 2.08, 2.09, 3.06, 4.06(e), 4.08(c) or Appendix A), there shall be (a) established in or pursuant to a resolution of the Board of Directors and (b) (i) set forth or determined in the manner provided in an Officers’ Certificate or (ii) established in one or more indentures supplemental hereto, prior to the issuance of such Additional Notes:

(1) the aggregate principal amount of such Additional Notes which may be authenticated and delivered under this Indenture;

(2) the issue price and issuance date of such Additional Notes, including the date from which interest on such Additional Notes shall accrue; and

(3) if applicable, that such Additional Notes shall be issuable in whole or in part in the form of one or more Global Notes and, in such case, the respective depositaries for such Global Notes, the form of any legend or legends which shall be borne by such Global Notes in addition to or in lieu of those set forth in Exhibit A hereto and any circumstances in addition to or in lieu of those set forth in Section 2.2 of Appendix A in which any such Global Note may be exchanged in whole or in part for Additional Notes registered, or any transfer of such Global Note in whole or in part may be registered, in the name or names of Persons other than the depositary for such Global Note or a nominee thereof.

If any of the terms of any Additional Notes are established by action taken pursuant to a resolution of the Board of Directors, a copy of an appropriate record of such action shall be certified by the Secretary or any Assistant Secretary of Holdings and delivered to the Trustee at or prior to the delivery of the Officers’ Certificate or an indenture supplemental hereto setting forth the terms of the Additional Notes.

The Initial Notes, including any Additional Notes, may, at the Issuers’ option, be treated as a single class for all purposes under this Indenture, including, without limitation, waivers, amendments, redemptions and offers to purchase.

SECTION 2.02 Form and Dating. Provisions relating to the Initial Notes are set forth in Appendix A, which is hereby incorporated in and expressly made a part of this Indenture. The (i) Initial Notes and the Trustee’s certificate of authentication and (ii) any Additional Notes (if issued as Transfer Restricted Notes) and the Trustee’s certificate of authentication shall each be substantially in the form of Exhibit A hereto, which is hereby incorporated in and expressly made a part of this Indenture. The Notes may have notations, legends or endorsements required by law, stock exchange rule, agreements to which the Issuers or any Guarantor is subject, if any, or usage (provided that any such notation, legend or endorsement is in a form acceptable to the Issuer). Each Note shall be dated the date of its authentication. The Notes shall be issuable only in registered form without interest coupons and in denominations of $2,000 and any integral multiples of $1,000 in excess thereof, provided that

Notes may be issued in denominations of less than $2,000 solely to accommodate book-entry positions that have been created by the Depositary in denominations of less than $2,000.

SECTION 2.03 Execution and Authentication. The Trustee shall authenticate and make available for delivery upon a written order of the Issuers signed by one Officer of each Issuer (a) Initial Notes for original issue on the date hereof in an aggregate principal amount of $650,000,000 and (b) subject to the terms of this Indenture, Additional Notes in an aggregate principal amount to be determined at the time of issuance and specified therein. Such order shall specify the amount of separate Note certificates to be authenticated, the principal amount of each of the Notes to be authenticated, the date on which the original issue of Notes is to be authenticated, whether the Notes are to be Initial Notes or Additional Notes, the registered holder of each of the Notes and delivery instructions. Notwithstanding anything to the contrary in this Indenture or Appendix A, any issuance of Additional Notes after the Issue Date shall be in a principal amount of at least $2,000 and integral multiples of $1,000 in excess thereof.

One Officer shall sign the Notes for each of the Issuers by manual or facsimile signature.

If an Officer whose signature is on a Note no longer holds that office at the time the Trustee authenticates the Note, the Note shall be valid nevertheless.

A Note shall not be valid until an authorized signatory of the Trustee manually signs the certificate of authentication on the Note. The signature shall be conclusive evidence that the Note has been authenticated under this Indenture.

The Trustee may appoint one or more authenticating agents reasonably acceptable to Holdings to authenticate the Notes. Any such appointment shall be evidenced by an instrument signed by a Trust Officer, a copy of which shall be furnished to Holdings. Unless limited by the terms of such appointment, an authenticating agent may authenticate Notes whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent has the same rights as any Registrar, Paying Agent or agent for service of notices and demands.

SECTION 2.04 Registrar and Paying Agent.

(a) The Issuers shall maintain (i) an office or agency where Notes may be presented for registration of transfer or for exchange (the “Registrar”) and (ii) an office or agency where Notes may be presented for payment (the “Paying Agent”). The Registrar shall keep a register of the Notes and of their transfer and exchange. The Issuers may have one or more co-registrars and one or more additional paying agents. The term “Registrar” includes any co-registrars. The term “Paying Agent” includes the Paying Agent and any additional paying agents. The Issuers initially appoint the Trustee as Registrar, Paying Agent and the Notes Custodian with respect to the Global Notes.

(b) The Issuers may enter into an appropriate agency agreement with any Registrar or Paying Agent not a party to this Indenture, which shall incorporate the terms of the TIA. The agreement shall implement the provisions of this Indenture that relate to such agent.

Holdings shall notify the Trustee in writing of the name and address of any such agent. If the Issuers fail to maintain a Registrar or Paying Agent, the Trustee shall act as such and shall be entitled to appropriate compensation therefor pursuant to Section 7.07. Holdings or any of its domestically organized Wholly Owned Subsidiaries may act as Paying Agent or Registrar.

(c) The Issuers may remove any Registrar or Paying Agent upon written notice to such Registrar or Paying Agent and to the Trustee; provided, however, that no such removal shall become effective until (i) if applicable, acceptance of an appointment by a successor as evidenced by an appropriate agreement entered into by the Issuers and such successor Registrar or Paying Agent, as the case may be, and delivered to the Trustee or (ii) notification to the Trustee that the Trustee shall serve as Registrar or Paying Agent until the appointment of a successor in accordance with clause (i) above. The Registrar or Paying Agent may resign at any time upon written notice to the Issuers and the Trustee; provided, however, that the Trustee may resign as Paying Agent or Registrar only if the Trustee also resigns as Trustee in accordance with Section 7.08.

SECTION 2.05 Paying Agent to Hold Money in Trust. Prior to each due date of the principal of and interest on any Note, the Issuers shall deposit with each Paying Agent (or if Holdings or a Wholly Owned Subsidiary is acting as Paying Agent, segregate and hold in trust for the benefit of the Persons entitled thereto) a sum sufficient to pay such principal and interest when so becoming due. The Issuers shall require each Paying Agent (other than the Trustee) to agree in writing that a Paying Agent shall hold in trust for the benefit of holders or the Trustee all money held by a Paying Agent for the payment of principal of and interest on the Notes, and shall notify the Trustee of any default by the Issuers in making any such payment. If Holdings or a Wholly Owned Subsidiary of Holdings acts as Paying Agent, it shall segregate the money held by it as Paying Agent and hold it in trust for the benefit of the Persons entitled thereto. The Issuers at any time may require a Paying Agent to pay all money held by it to the Trustee and to account for any funds disbursed by such Paying Agent. Upon complying with this Section, a Paying Agent shall have no further liability for the money delivered to the Trustee.

SECTION 2.06 Holder Lists. The Trustee shall preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of holders. If the Trustee is not the Registrar, Holdings shall furnish, or cause the Registrar to furnish, to the Trustee, in writing at least five Business Days before each Interest Payment Date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of holders.

SECTION 2.07 Transfer and Exchange. The Notes shall be issued in registered form and shall be transferable only upon the surrender of a Note for registration of transfer and in compliance with Appendix A. When a Note is presented to the Registrar with a request to register a transfer, the Registrar shall register the transfer as requested if its requirements therefor are met. When Notes are presented to the Registrar with a request to exchange them for an equal principal amount of Notes of other denominations, the Registrar shall make the exchange as requested if the same requirements are met. To permit registration of transfers and exchanges, the Issuers shall execute and the Trustee shall authenticate Notes at the Registrar’s request. The Issuers may require payment of a sum sufficient to pay all taxes,

assessments or other governmental charges in connection with any transfer or exchange pursuant to this Section. The Issuers shall not be required to make, and the Registrar need not register, transfers or exchanges of Notes selected for redemption (except, in the case of Notes to be redeemed in part, the portion thereof not to be redeemed) or of any Notes for a period of 15 days before a selection of Notes to be redeemed.

Prior to the due presentation for registration of transfer of any Note, the Issuers, the Guarantors, the Trustee, the Paying Agent and the Registrar may deem and treat the Person in whose name a Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of and interest, if any, on such Note and for all other purposes whatsoever, whether or not such Note is overdue, and none of the Issuers, the Guarantors, the Trustee, the Paying Agent or the Registrar shall be affected by notice to the contrary.

Any holder of a beneficial interest in a Global Note shall, by acceptance of such beneficial interest, agree that transfers of beneficial interests in such Global Note may be effected only through a book-entry system maintained by (a) the holder of such Global Note (or its agent) or (b) any holder of a beneficial interest in such Global Note, and that ownership of a beneficial interest in such Global Note shall be required to be reflected in a book entry.

All Notes issued upon any transfer or exchange pursuant to the terms of this Indenture shall evidence the same debt and shall be entitled to the same benefits under this Indenture as the Notes surrendered upon such transfer or exchange.

The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among Depositary participants or beneficial owners of interests in any Global Note) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of, this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

None of the Trustee, Registrar or Paying Agent shall have any responsibility for any actions taken or not taken by the Depositary.

SECTION 2.08 Replacement Notes. If a mutilated Note is surrendered to the Registrar or if the holder of a Note claims that the Note has been lost, destroyed or wrongfully taken, the Issuers shall issue and the Trustee shall authenticate a replacement Note if the requirements of Section 8-405 of the Uniform Commercial Code are met, such that the holder (a) satisfies the Issuers and the Trustee within a reasonable time after such holder has notice of such loss, destruction or wrongful taking and the Registrar does not register a transfer prior to receiving such notification, (b) makes such request to the Issuers and the Trustee prior to the Note being acquired by a protected purchaser as defined in Section 8-303 of the Uniform Commercial Code (a “protected purchaser”) and (c) satisfies any other reasonable requirements of the Issuers and the Trustee. If required by the Trustee or the Issuers, such holder shall furnish an indemnity bond sufficient in the judgment of the Trustee and the Issuers to protect the Issuers, the Trustee, the Paying Agent and the Registrar from any loss or liability that any of them may

suffer if a Note is replaced and subsequently presented or claimed for payment. The Issuers and the Trustee may charge the holder for their expenses in replacing a Note (including without limitation, attorneys’ fees and disbursements in replacing such Note). In the event any such mutilated, lost, destroyed or wrongfully taken Note has become or is about to become due and payable, the Issuers in their discretion may pay such Note instead of issuing a new Note in replacement thereof.

Every replacement Note is an additional obligation of the Issuers.

The provisions of this Section 2.08 are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, lost, destroyed or wrongfully taken Notes.

SECTION 2.09 Outstanding Notes. Notes outstanding at any time are all Notes authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation and those described in this Section as not outstanding. Subject to Section 14.06, a Note does not cease to be outstanding because one of the Issuers or an Affiliate of one of the Issuers holds the Note.

If a Note is replaced pursuant to Section 2.08 (other than a mutilated Note surrendered for replacement), it ceases to be outstanding unless the Trustee and the Issuers receive proof satisfactory to them that the replaced Note is held by a protected purchaser. A mutilated Note ceases to be outstanding upon surrender of such Note and replacement thereof pursuant to Section 2.08.

If a Paying Agent segregates and holds in trust, in accordance with this Indenture, on a redemption date or maturity date money sufficient to pay all principal and interest payable on that date with respect to the Notes (or portions thereof) to be redeemed or maturing, as the case may be, and no Paying Agent is prohibited from paying such money to the holders on that date pursuant to the terms of this Indenture, then on and after that date such Notes (or portions thereof) cease to be outstanding and interest on them ceases to accrue.

SECTION 2.10 Cancellation. The Issuers at any time may deliver Notes to the Trustee for cancellation. The Registrar and each Paying Agent shall forward to the Trustee any Notes surrendered to them for registration of transfer, exchange or payment. The Trustee and no one else shall cancel all Notes surrendered for registration of transfer, exchange, payment or cancellation and shall dispose of canceled Notes in accordance with its customary procedures. The Issuers may not issue new Notes to replace Notes they have redeemed, paid or delivered to the Trustee for cancellation. The Trustee shall not authenticate Notes in place of canceled Notes other than pursuant to the terms of this Indenture.

SECTION 2.11 Defaulted Interest. If the Issuers default in a payment of interest on the Notes, the Issuers shall pay the defaulted interest then borne by the Notes (plus interest on such defaulted interest to the extent lawful) in any lawful manner. The Issuers may pay the defaulted interest to the Persons who are holders on a subsequent special record date. The Issuers shall fix or cause to be fixed any such special record date and payment date to the reasonable satisfaction of the Trustee and shall promptly mail or cause to be mailed to each

affected holder a notice that states the special record date, the payment date and the amount of defaulted interest to be paid.

SECTION 2.12 CUSIP Numbers, ISINs, Etc. The Issuers in issuing the Notes may use CUSIP numbers, ISINs and “Common Code” numbers (if then generally in use), and the Trustee shall use any such CUSIP numbers, ISINs and “Common Code” numbers in notices of redemption as a convenience to holders; provided, however, that any such notice may state that no representation is made as to the correctness of such numbers, either as printed on the Notes or as contained in any notice of a redemption that reliance may be placed only on the other identification numbers printed on the Notes and that any such redemption shall not be affected by any defect in or omission of such numbers. The Issuers shall advise the Trustee of any change in any such CUSIP numbers, ISINs and “Common Code” numbers.

SECTION 2.13 Calculation of Principal Amount of Notes. The aggregate principal amount of the Notes, at any date of determination, shall be the principal amount of the Notes at such date of determination. With respect to any matter requiring consent, waiver, approval or other action of the holders of a specified percentage of the principal amount of all the Notes, such percentage shall be calculated, on the relevant date of determination, by dividing (a) the principal amount, as of such date of determination, of Notes, the holders of which have so consented, by (b) the aggregate principal amount, as of such date of determination, of the Notes then outstanding, in each case, as determined in accordance with the preceding sentence, Section 2.09 and Section 14.06 of this Indenture. Any calculation of the Applicable Premium or made pursuant to this Section 2.13 shall be made by Holdings and delivered to the Trustee pursuant to an Officers’ Certificate.

ARTICLE III

REDEMPTION

SECTION 3.01 Redemption. The Notes may be redeemed, in whole or from time to time in part, subject to the conditions and at the redemption prices set forth in Paragraph 5 of the forms of Notes set forth in Exhibits A and B hereto, which are hereby incorporated by reference and made a part of this Indenture, together with accrued and unpaid interest, if any, to, but excluding, the redemption date.

SECTION 3.02 Applicability of Article. Redemption of Notes at the election of the Issuers or otherwise, as permitted or required by any provision of this Indenture, shall be made in accordance with such provision and this Article III.

SECTION 3.03 Notices to Trustee. If the Issuers elect to redeem Notes pursuant to the optional redemption provisions of Paragraph 5 of the Note, Holdings shall notify the Trustee in an Officers’ Certificate of (i) the Section of this Indenture pursuant to which the redemption shall occur, (ii) the redemption date, (iii) the principal amount of Notes to be redeemed and (iv) the redemption price. Holdings shall give notice to the Trustee provided for in this paragraph at least 30 days but not more than 60 days before a redemption date if the redemption is an optional redemption pursuant to Paragraph 5 of the Note. Holdings, subject to Section 3.05(b) may also include a request in such Officers’ Certificate that the Trustee give the

notice of redemption in the Issuers’ name and at their expense and setting forth the information to be stated in such notice as provided in Section 3.05. Any such notice may be canceled at any time prior to notice of such redemption being mailed to any holder or otherwise delivered in accordance with the applicable procedures of the Depositary and shall thereby be void and of no effect. The Issuers shall deliver to the Trustee such documentation and records as shall enable the Trustee to select the Notes to be redeemed pursuant to Section 3.04.

SECTION 3.04 Selection of Notes to Be Redeemed. In the case of any partial redemption, selection of the Notes for redemption will be made by the Trustee in compliance with the requirements of the principal national securities exchange, if any, on which the Notes are listed, or if the Notes are not so listed, on a pro rata basis to the extent practicable or by lot or by such other method the Trustee shall deem fair and appropriate (and, in such manner that complies with the applicable legal requirements and the requirements of the Depositary, if applicable); provided that no Notes of $2,000 (and integral multiples of $1,000 in excess thereof) or less shall be redeemed in part. The Trustee shall make the selection from outstanding Notes not previously called for redemption. The Trustee may select for redemption portions of the principal of Notes that have denominations larger than $2,000. Notes and portions of them the Trustee selects shall be in amounts of $2,000 or integral multiples of $1,000 in excess thereof. Provisions of this Indenture that apply to Notes called for redemption also apply to portions of Notes called for redemption. The Trustee shall notify the Issuers promptly of the Notes or portions of Notes to be redeemed.

SECTION 3.05 Notice of Optional Redemption.

(a) At least 30 but not more than 60 days before a redemption date pursuant to Paragraph 5 of the Note, the Issuers shall mail or cause to be mailed by first-class mail, or otherwise deliver in accordance with the procedures of the Depositary, a notice of redemption to each holder whose Notes are to be redeemed at its registered address (with a copy to the Trustee), except that redemption notices may be mailed or otherwise delivered more than 60 days prior to the redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of this Indenture pursuant to Article VIII; provided that, in the case of a Special Redemption, such notices may be mailed or otherwise sent less than 30 days (but at least 10 days) before the Special Redemption Date.

Any such notice shall identify the Notes to be redeemed and shall state:

(i) the redemption date;

(ii) the redemption price and the amount of accrued interest to, but excluding, the redemption date;

(iii) the name and address of the Paying Agent;

(iv) that Notes called for redemption must be surrendered to the Paying Agent to collect the redemption price, plus accrued and unpaid interest, if any;

(v) if fewer than all the outstanding Notes are to be redeemed, the certificate numbers and

principal amounts of the particular Notes to be redeemed, the aggregate principal amount of Notes to be redeemed and the aggregate principal amount of Notes to be outstanding after such partial redemption;

(vi) that, unless the Issuers default in making such redemption payment or the Paying Agent is prohibited from making such payment pursuant to the terms of this Indenture, interest on Notes (or portion thereof) called for redemption ceases to accrue on and after the redemption date;

(vii) the CUSIP number, ISIN and/or “Common Code” number, if any, printed on the Notes being redeemed; and

(viii) that no representation is made as to the correctness or accuracy of the CUSIP number or ISIN and/or “Common Code” number, if any, listed in such notice or printed on the Notes.

(b) At Holdings’ request, the Trustee shall deliver the notice of redemption in the Issuers’ name and at the Issuers’ expense. In such event, Holdings shall notify the Trustee of such request at least three (3) Business Days prior to the date such notice is to be provided to holders. Such notice may not be canceled once delivered to holders of Notes.

SECTION 3.06 Effect of Notice of Redemption. Once notice of redemption is mailed or otherwise delivered in accordance with Section 3.05, Notes called for redemption become due and payable on the redemption date and at the redemption price stated in the notice, except as provided in the final sentence of Paragraph 5 of the Notes. Upon surrender to the Paying Agent, such Notes shall be paid at the redemption price stated in the notice, plus accrued and unpaid interest, if any, to, but not including, the redemption date; provided, however, that if the redemption date is after a regular Record Date and on or prior to the Interest Payment Date, the accrued interest shall be payable to the holder of the redeemed Notes registered on the relevant Record Date. Failure to give notice or any defect in the notice to any holder shall not affect the validity of the notice to any other holder.

Furthermore, notwithstanding the preceding provisions of this Section 3.06 or any other provisions hereof or of the Notes to the contrary, if a Mandatory Redemption Event occurs, $250,000,000 of the Notes then outstanding shall become due and payable on the Special Redemption Date at the Special Redemption Price in accordance with Section 3.09, regardless of whether previously called for redemption.

SECTION 3.07 Deposit of Redemption Price. With respect to any Notes, prior to 10:00 a.m., New York City time, on the redemption date, the Issuers shall deposit with the Paying Agent (or, if Holdings or a Wholly Owned Subsidiary of Holdings is the Paying Agent, shall segregate and hold in trust) money sufficient to pay the redemption price of and accrued and unpaid interest, if any, on all Notes or portions thereof to be redeemed on that date other than Notes or portions of Notes called for redemption that have been delivered by the Issuers to the Trustee for cancellation. On and after the redemption date, interest shall cease to accrue on Notes or portions thereof called for redemption so long as the Issuers have deposited with the Paying Agent funds sufficient to pay the principal of, plus accrued and unpaid interest,

if any, on, the Notes to be redeemed, unless the Paying Agent is prohibited from making such payment pursuant to the terms of this Indenture.

SECTION 3.08 Notes Redeemed in Part. If any Note is to be redeemed in part only, the notice of redemption relating to such Note shall state the portion of the principal amount thereof to be redeemed. Upon surrender of a Note that is redeemed in part, the Issuers shall execute and the Trustee shall authenticate for the holder (at the Issuers’ expense) a new Note equal in principal amount to the unredeemed portion of the Note surrendered.

SECTION 3.09 Special Redemption. If a Mandatory Redemption Event occurs, then on the Special Redemption Date, the Issuers shall redeem $250,000,000 of the Notes then outstanding, at a redemption price (the “Special Redemption Price”) equal to the initial offer price of the Notes plus accrued and unpaid interest to, but not including, the Special Redemption Date (such redemption being referred to herein as a “Special Mandatory Redemption”). In addition, if at any time the Issuers determine that a Mandatory Redemption Event is reasonably likely to occur, then the Issuers may, at their option, redeem $250,000,000 of the Notes then outstanding on the Special Redemption Date, at a redemption price equal to the Special Redemption Price (such redemption being referred to herein as a “Special Optional Redemption”). If a Mandatory Redemption Event occurs, the Issuers will provide written notice thereof to the Trustee, which notice shall specify whether the redemption is a Special Mandatory Redemption or a Special Optional Redemption, the Special Redemption Price and the Special Redemption Date. Such notice shall also instruct the Trustee to send a notice of redemption to the Holders, which notice of redemption shall specify that the redemption is a Special Mandatory Redemption or a Special Optional Redemption, the Special Redemption Price and the Special Redemption Date. The Trustee shall select such Notes to be redeemed on a pro rata basis in accordance with the procedures of the Depositary. Such notice of redemption having been given, the $250,000,000 aggregate principal amount of Notes called for redemption shall become due and payable on the Special Redemption Date at the Special Redemption Price and shall cease to accrue interest, unless the Issuers fail to redeem such Notes. Upon the consummation of the Special Acquisitions, this Section 3.09 shall terminate and cease to apply.

ARTICLE IV

COVENANTS

SECTION 4.01 Payment of Notes. The Issuers shall promptly pay the principal of and interest on the Notes on the dates and in the manner provided in the Notes and in this Indenture. An installment of principal of or interest shall be considered paid on the date due if on such date the Trustee or the Paying Agent holds as of 12:00 p.m. New York City time money sufficient to pay all principal and interest then due and the Trustee or the Paying Agent, as the case may be, is not prohibited from paying such money to the holders on that date pursuant to the terms of this Indenture.

The Issuers shall pay interest on overdue principal at the rate specified therefor in the Notes, and it shall pay interest on overdue installments of interest at the same rate borne by the Notes to the extent lawful.

SECTION 4.02 Reports and Other Information.

(a) Notwithstanding that Holdings may not be subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act or otherwise report on an annual and quarterly basis on forms provided for such annual and quarterly reporting pursuant to rules and regulations promulgated by the SEC, Holdings will furnish to the holders of Notes or cause the Trustee to furnish to holders of Notes (or file or furnish, as applicable, with the SEC for public availability):

(i) within the time period specified in the SEC’s rules and regulations for non-accelerated filers, annual reports containing the information that would have been required to be contained in an annual report on Form 10-K (or any successor or comparable form) containing the information required to be contained therein (or required in such successor or comparable form), except to the extent permitted to be excluded by the SEC;

(ii) within the time period specified in the SEC’s rules and regulations for non-accelerated filers, quarterly reports containing the information that would have been required to be contained in a quarterly report on Form 10-Q (or any successor or comparable form) containing the information required to be contained therein (or required in such successor or comparable form), except to the extent permitted to be excluded by the SEC;

(iii) promptly from time to time after the occurrence of an event required to be therein reported (and in any event within the time period specified in the SEC’s rules and regulations), such other current reports containing the information that would have been required to be contained in a current report on Form 8-K (or any successor or comparable form); and

(iv) subject to the foregoing, any other information, documents and other reports which Holdings would be required to file with the SEC if it were subject to Section 13 or 15(d) of the Exchange Act;

provided, however, if the SEC does not permit such filing, Holdings will make available such information to the Trustee and the holders within 15 days after the time Holdings would be required to file such information with the SEC if it were subject to Section 13 or 15(d) of the Exchange Act. In addition to providing such information to the Trustee, Holdings shall make available to the holders, prospective investors, market makers affiliated with any initial purchaser of the Notes and securities analysts the information required to be provided pursuant to the foregoing clauses (i), (ii) or (iii), by posting such information to its website or on IntraLinks or any comparable online data system or website.

So long as Athlon Energy or any other direct or indirect parent company of Holdings is or becomes a guarantor of the Notes, Holdings may satisfy its obligations under this covenant by furnishing financial information relating to such entity; provided that such financial statements are accompanied by consolidating financial information for such parent, Holdings, the

Subsidiary Guarantors and the Subsidiaries of Holdings that are not Subsidiary Guarantors in the manner prescribed by the SEC.

If Holdings has designated any of its Subsidiaries as an Unrestricted Subsidiary and if any such Unrestricted Subsidiary or group of Unrestricted Subsidiaries, if taken together as one Subsidiary, would constitute a Significant Subsidiary of Holdings, then the annual and quarterly information required to be provided by clauses (i) and (ii) of this Section 4.02(a) shall include a reasonably detailed presentation, either on the face of the financial statements or in the footnotes thereto, of the financial condition and results of operations of Holdings and its Restricted Subsidiaries separate from the financial condition and results of operations of such Unrestricted Subsidiaries.

(b) In the event that:

(i) the rules and regulations of the SEC permit Holdings and any direct or indirect parent of Holdings to report at such parent entity’s level on a consolidated basis and such parent entity is not engaged in any business in any material respect other than incidental to its ownership, directly or indirectly, of the capital stock of Holdings, or

(ii) any direct or indirect parent of Holdings is or becomes a guarantor of the Notes,

consolidated reporting at such parent entity’s level in a manner consistent with that described in this Section 4.02 for Holdings will satisfy this Section 4.02, and Holdings is permitted to satisfy its obligations in this Section 4.02 with respect to financial information relating Holdings by furnishing financial information relating to such direct or indirect parent; provided that such financial information is accompanied by consolidating information that explains in reasonable detail the differences between the information relating to such direct or indirect parent and any of its Subsidiaries other than Holdings and its Subsidiaries, on the one hand, and the information relating to Holdings, the Subsidiary Guarantors and the other Subsidiaries of Holdings on a standalone basis, on the other hand. In addition, Holdings will make such information available to prospective investors upon request.

(c) In addition, Holdings shall, for so long as any Notes remain outstanding during any period when it is not subject to Section 13 or 15(d) of the Exchange Act, or otherwise permitted to furnish the SEC with certain information pursuant to Rule 12g3-2(b) of the Exchange Act, furnish to the holders of the Notes and to prospective investors, upon their request, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act. Holdings will also hold quarterly conference calls, beginning with the first full fiscal quarter ending after the Issue Date, for all holders and securities analysts to discuss such financial information no later than five business days after the distribution of such information required by Sections 4.02(a)(i) and (ii) and prior to the date of each such conference call, announcing the time and date of such conference call and either including all information necessary to access the call or informing holders of Notes, prospective investors, market makers affiliated with any initial purchaser of the Notes and securities analysts how they can obtain such information, including, without limitation, the applicable password or other login information.

(d) Notwithstanding the foregoing, Holdings will be deemed to have furnished the reports referred to in this Section 4.02 to the Trustee and the holders if Athlon Energy or Holdings has filed such reports with the SEC via the XXXXX filing system and such reports are publicly available.

(e) Delivery of such reports, information and documents to the Trustee pursuant to this Section 4.02 is for informational purposes only, and the Trustee’s receipt thereof shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Issuers’ compliance with any of their covenants under this Indenture (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates).

SECTION 4.03 Limitation on Incurrence of Indebtedness and Issuance of Disqualified Stock and Preferred Stock.

(a) (i) Holdings shall not, and shall not permit any of the Restricted Subsidiaries to, directly or indirectly, Incur any Indebtedness (including Acquired Indebtedness) or issue any shares of Disqualified Stock; and (ii) Holdings shall not permit any of the Restricted Subsidiaries (other than a Subsidiary Guarantor) to issue any shares of Preferred Stock; provided, however, that Holdings may Incur Indebtedness (including Acquired Indebtedness) or issue shares of Disqualified Stock, and any Restricted Subsidiary may Incur Indebtedness (including Acquired Indebtedness), issue shares of Disqualified Stock or issue shares of Preferred Stock, in each case if the Fixed Charge Coverage Ratio of Holdings for the most recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date on which such additional Indebtedness is Incurred or such Disqualified Stock or Preferred Stock is issued would have been at least 2.00 to 1.00 determined on a pro forma basis (including a pro forma application of the net proceeds therefrom), as if the additional Indebtedness had been Incurred, or the Disqualified Stock or Preferred Stock had been issued, as the case may be, and the application of proceeds therefrom had occurred at the beginning of such four-quarter period.

(b) The limitations set forth in Section 4.03(a) shall not apply to:

(i) the Incurrence by Holdings or any Restricted Subsidiary of Indebtedness under the Credit Agreement and the issuance and creation of letters of credit and bankers’ acceptances thereunder up to an aggregate principal amount outstanding at any time that does not exceed the greatest of (1) $550.0 million, (2) the sum of (x) $200.0 million and (y) 35.0% of Adjusted Consolidated Net Tangible Assets at the time of Incurrence and (3) the Borrowing Base at the time of Incurrence;

(ii) the Incurrence by the Issuers and the Subsidiary Guarantors of Indebtedness represented by the Notes and the Subsidiary Guarantees (plus, in the case of any Refinancing Indebtedness, the Additional Refinancing Amount), as applicable (not including any Additional Notes);

(iii) Indebtedness existing on the Issue Date (other than Indebtedness described in clauses (i) and (ii) of this Section 4.03(b));

(iv) Indebtedness (including Capitalized Lease Obligations) Incurred by Holdings or any Restricted Subsidiary, Disqualified Stock issued by Holdings or any Restricted Subsidiary and Preferred Stock issued by any Restricted Subsidiary to finance (whether prior to or within 270 days after) the acquisition, lease, construction, repair, replacement or improvement of property (real or personal) or equipment (whether through the direct purchase of assets or the Capital Stock of any Person owning such assets) in an aggregate principal amount that, when aggregated with the principal amount or liquidation preference of all other Indebtedness, Disqualified Stock or Preferred Stock then outstanding and Incurred pursuant to this clause (iv), together with any Refinancing Indebtedness in respect thereof Incurred pursuant to clause (xv) below, does not exceed the greater of $75.0 million and 7.5% of Adjusted Consolidated Net Tangible Assets at the time of Incurrence (plus, in the case of any Refinancing Indebtedness, the Additional Refinancing Amount);

(v) Indebtedness Incurred by Holdings or any Restricted Subsidiary constituting reimbursement obligations with respect to letters of credit and bank guarantees issued in the ordinary course of business, including without limitation letters of credit in respect of workers’ compensation claims, health, disability or other benefits to employees or former employees or their families or property, casualty or liability insurance or self-insurance, and letters of credit in connection with the maintenance of, or pursuant to the requirements of, environmental or other permits or licenses from governmental authorities, or other Indebtedness with respect to reimbursement type obligations regarding workers’ compensation claims;

(vi) Indebtedness arising from agreements of Holdings or any Restricted Subsidiary providing for indemnification, adjustment of purchase price or similar obligations, in each case, Incurred in connection with any acquisition or disposition of any business, assets or a Subsidiary in accordance with the terms of this Indenture, other than guarantees of Indebtedness Incurred by any Person acquiring all or any portion of such business, assets or Subsidiary for the purpose of financing such acquisition;

(vii) Indebtedness of Holdings to a Restricted Subsidiary; provided that (except in respect of intercompany current liabilities Incurred in the ordinary course of business in connection with the cash management, tax and accounting operations of Holdings and its Subsidiaries) any such Indebtedness owed to a Restricted Subsidiary that is not a Subsidiary Guarantor is subordinated in right of payment to the obligations of the Issuers under the Notes; provided, further, that any subsequent issuance or transfer of any Capital Stock or any other event which results in any such Restricted Subsidiary ceasing to be a Restricted Subsidiary or any other subsequent transfer of any such Indebtedness (except to Holdings or another Restricted Subsidiary or any pledge of such Indebtedness constituting a Permitted Lien but not the transfer thereof upon foreclosure) shall be deemed, in each case, to be an Incurrence of such Indebtedness not permitted by this clause (vii);

(viii) shares of Preferred Stock of a Restricted Subsidiary issued to Holdings or another Restricted Subsidiary; provided that any subsequent issuance or transfer of any Capital Stock or any other event which results in any Restricted Subsidiary that holds

such shares of Preferred Stock of another Restricted Subsidiary ceasing to be a Restricted Subsidiary or any other subsequent transfer of any such shares of Preferred Stock (except to Holdings or another Restricted Subsidiary) shall be deemed, in each case, to be an issuance of shares of Preferred Stock not permitted by this clause (viii);

(ix) Indebtedness of a Restricted Subsidiary to Holdings or another Restricted Subsidiary; provided that if a Subsidiary Guarantor incurs such Indebtedness to a Restricted Subsidiary that is not an Issuer or a Subsidiary Guarantor (except in respect of intercompany current liabilities Incurred in the ordinary course of business in connection with the cash management, tax and accounting operations of Holdings and its Subsidiaries), such Indebtedness is subordinated in right of payment to the Subsidiary Guarantee of such Subsidiary Guarantor; provided, further, that any subsequent issuance or transfer of any Capital Stock or any other event which results in any Restricted Subsidiary holding such Indebtedness ceasing to be a Restricted Subsidiary or any other subsequent transfer of any such Indebtedness (except to Holdings or another Restricted Subsidiary or any pledge of such Indebtedness constituting a Permitted Lien but not the transfer thereof upon foreclosure) shall be deemed, in each case, to be an Incurrence of such Indebtedness not permitted by this clause (ix);

(x) Hedging Obligations that are not Incurred for speculative purposes but (A) for the purpose of fixing or hedging interest rate risk with respect to any Indebtedness that is permitted by the terms of this Indenture to be outstanding; (B) for the purpose of fixing or hedging currency exchange rate risk with respect to any currency exchanges; or (C) for the purpose of fixing or hedging commodity price risk with respect to any commodity purchases or sales (including, without limitation, any commodity Hedging Obligation that is intended in good faith, at inception of execution, to hedge or manage any of the risks related to existing and/or forecasted Hydrocarbon production (whether or not contracted)) and, in each case, extensions or replacements thereof;

(xi) obligations (including reimbursement obligations with respect to letters of credit and bank guarantees) in respect of performance, bid, appeal and surety bonds and completion guarantees provided by Holdings or any Restricted Subsidiary in the ordinary course of business or consistent with past practice or industry practice;

(xii) Indebtedness or Disqualified Stock of Holdings or Indebtedness, Disqualified Stock or Preferred Stock of any Restricted Subsidiary not otherwise permitted hereunder in an aggregate principal amount or liquidation preference which, when aggregated with the principal amount or liquidation preference of all other Indebtedness, Disqualified Stock and Preferred Stock then outstanding and Incurred pursuant to this clause (xii), together with any Refinancing Indebtedness in respect thereof Incurred pursuant to clause (xv) below, does not exceed the greater of $50.0 million and 5.0% of Adjusted Consolidated Net Tangible Assets at the time of Incurrence (plus, in the case of any Refinancing Indebtedness, the Additional Refinancing Amount) (it being understood that any Indebtedness Incurred pursuant to this clause (xii) shall cease to be deemed Incurred or outstanding for purposes of this clause (xii) but shall be deemed Incurred for purposes of Section 4.03(a) from and after the first date on which Holdings, or the Restricted Subsidiary, as the case may be, could

have Incurred such Indebtedness under Section 4.03(a) without reliance upon this clause (xii));

(xiii) Indebtedness or Disqualified Stock of Holdings or any Restricted Subsidiary and Preferred Stock of any Restricted Subsidiary not otherwise permitted hereunder in an aggregate principal amount or liquidation preference at any time outstanding not greater than 100.0% of the net cash proceeds received by Holdings and its Restricted Subsidiaries since immediately after the Issue Date from the issue or sale of Equity Interests of Holdings or any direct or indirect parent entity of Holdings (which proceeds are contributed to Holdings or its Restricted Subsidiary) or cash contributed to the capital of Holdings (in each case other than proceeds of Disqualified Stock or sales of Equity Interests to, or contributions received from, Holdings or any of its Subsidiaries) to the extent such net cash proceeds or cash have not been applied pursuant to such clauses to make Restricted Payments or to make other Investments, payments or exchanges pursuant to Section 4.04(b) or to make Permitted Investments (other than Permitted Investments specified in clauses (1) and (3) of the definition thereof);

(xiv) any guarantee by Holdings or any Restricted Subsidiary of Indebtedness or other obligations of Holdings or any Restricted Subsidiary so long as the Incurrence of such Indebtedness Incurred by Holdings or such Restricted Subsidiary is permitted under the terms of this Indenture; provided that (A) if such Indebtedness is by its express terms subordinated in right of payment to the Notes or the Subsidiary Guarantee of such Restricted Subsidiary, as applicable, any such guarantee with respect to such Indebtedness shall be subordinated in right of payment to the Notes or such Subsidiary Guarantee, as applicable, substantially to the same extent as such Indebtedness is subordinated to the Notes or the Subsidiary Guarantee, as applicable and (B) if such guarantee is of Indebtedness of Holdings, such guarantee is Incurred in accordance with, or not in contravention of, Section 4.11, solely to the extent Section 4.11 is applicable;

(xv) the Incurrence by Holdings or any of the Restricted Subsidiaries of Indebtedness or Disqualified Stock or Preferred Stock of a Restricted Subsidiary that serves to refund, refinance or defease any Indebtedness Incurred or Disqualified Stock or Preferred Stock issued as permitted under Section 4.03(a) and clauses (ii), (iii), (iv), (xii), (xiii), (xv) and (xvi) of this Section 4.03(b) up to the outstanding principal amount (or, if applicable, the liquidation preference face amount, or the like) or, if greater, committed amount (only to the extent the committed amount could have been Incurred on the date of initial Incurrence) of such Indebtedness or Disqualified Stock or Preferred Stock, in each case at the time such Indebtedness was Incurred or Disqualified Stock or Preferred Stock was issued pursuant to Section 4.03(a) or clauses (ii), (iii), (iv), (xii), (xiii), (xv) and (xvi) of this Section 4.03(b), or any Indebtedness, Disqualified Stock or Preferred Stock Incurred to so refund or refinance such Indebtedness, Disqualified Stock or Preferred Stock, including any additional Indebtedness, Disqualified Stock or Preferred Stock Incurred to pay premiums (including tender premiums), expenses, defeasance costs and fees in connection therewith (subject to the following proviso, “Refinancing Indebtedness”) prior to its respective maturity; provided, however, that such Refinancing Indebtedness:

(1) has a Weighted Average Life to Maturity at the time such Refinancing Indebtedness is Incurred which is not less than the shorter of (x) the remaining Weighted Average Life to Maturity of the Indebtedness, Disqualified Stock or Preferred Stock being refunded, refinanced or defeased and (y) the Weighted Average Life to Maturity that would result if all payments of principal on the Indebtedness, Disqualified Stock and Preferred Stock being refunded or refinanced that were due on or after the date that is one year following the last maturity date of any Notes then outstanding were instead due on such date (provided that this subclause (1) will not apply to any refunding or refinancing of any Secured Indebtedness);

(2) to the extent such Refinancing Indebtedness refinances (a) Indebtedness junior to the Notes or a Subsidiary Guarantee, as applicable, such Refinancing Indebtedness is junior to the Notes or the Subsidiary Guarantee, as applicable, or (b) Disqualified Stock or Preferred Stock, such Refinancing Indebtedness is Disqualified Stock or Preferred Stock; and

(3) shall not include (x) Indebtedness of a Restricted Subsidiary that is not a Subsidiary Guarantor that refinances Indebtedness of an Issuer or a Subsidiary Guarantor, or (y) Indebtedness of an Issuer or a Restricted Subsidiary that refinances Indebtedness of an Unrestricted Subsidiary;

(xvi) Indebtedness, Disqualified Stock or Preferred Stock of (A) Holdings or any Restricted Subsidiary Incurred to finance an acquisition or (B) Persons that are acquired by Holdings or any Restricted Subsidiary or merged, consolidated or amalgamated with or into Holdings or any Restricted Subsidiary in accordance with the terms of this Indenture; provided that after giving effect to such acquisition or merger, consolidation or amalgamation, either:

(1) Holdings would be permitted to Incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.03(a); or

(2) the Fixed Charge Coverage Ratio of Holdings would be no less than immediately prior to such acquisition or merger, consolidation or amalgamation;

(xvii) Indebtedness Incurred by a Receivables Subsidiary in a Qualified Receivables Financing that is not recourse to Holdings or any Restricted Subsidiary other than a Receivables Subsidiary (except for Standard Securitization Undertakings);

(xviii) Indebtedness arising from the honoring by a bank or other financial institution of a check, draft or similar instrument drawn against insufficient funds in the ordinary course of business; provided that such Indebtedness is extinguished within five Business Days of its Incurrence;

(xix) Indebtedness of Holdings or any Restricted Subsidiary supported by a letter of credit or bank guarantee issued pursuant to Bank Indebtedness, in a principal amount not in excess of the stated amount of such letter of credit;

(xx) Indebtedness of Restricted Subsidiaries that are not Subsidiary Guarantors and Indebtedness Incurred on behalf of, or representing guarantees of Indebtedness of, joint ventures of Holdings and any Restricted Subsidiary; provided, however, that the aggregate principal amount of Indebtedness Incurred under this clause (xx), when aggregated with the principal amount of all other Indebtedness then outstanding and Incurred pursuant to this clause (xx), does not exceed the greater of $50.0 million and 5.0% of Adjusted Consolidated Net Tangible Assets at the time of Incurrence (it being understood that any Indebtedness Incurred pursuant to this clause (xx) shall cease to be deemed Incurred or outstanding for purposes of this clause (xx) but shall be deemed Incurred for the purposes of Section 4.03(a) from and after the first date on which such Restricted Subsidiary could have Incurred such Indebtedness under Section 4.03(a) without reliance upon this clause (xx));

(xxi) Indebtedness of Holdings or any Restricted Subsidiary consisting of (A) the financing of insurance premiums or (B) take-or-pay obligations contained in supply arrangements, in each case, in the ordinary course of business; and

(xxii) Indebtedness consisting of Indebtedness issued by Holdings or a Restricted Subsidiary to current or former officers, directors, managers and employees thereof or any direct or indirect parent thereof, their respective estates, spouses or former spouses, in each case to finance the purchase or redemption of Equity Interests of Holdings or any direct or indirect parent of Holdings to the extent described in Section 4.04(b)(iv).

For purposes of determining compliance with this Section 4.03:

(1) in the event that an item of Indebtedness, Disqualified Stock or Preferred Stock (or any portion thereof) meets the criteria of more than one of the categories of permitted Indebtedness described in clauses (i) through (xxii) of Section 4.03(b) above or is entitled to be Incurred pursuant to Section 4.03(a), then Holdings shall, in its sole discretion, classify or reclassify, or later divide, classify or reclassify, such item of Indebtedness, Disqualified Stock or Preferred Stock (or any portion thereof) in any manner that complies with this Section 4.03. Any Indebtedness under the Credit Agreement (other than the 2021 Senior Notes) on the Issue Date shall be considered Incurred under Section 4.03(b)(i)(1);

(2) at the time of Incurrence, Holdings will be entitled to divide and classify an item of Indebtedness in more than one of the types of Indebtedness described in Section 4.03(a) and (b) without giving pro forma effect to the Indebtedness Incurred pursuant to Section 4.03(b) when calculating the amount of Indebtedness that may be Incurred pursuant to Section 4.03(a);

(3) if any Indebtedness denominated in U.S. dollars is exchanged, converted or refinanced into Indebtedness denominated in a foreign currency, then (in connection with such exchange, conversion or refinancing, and thereafter), the U.S. dollar amount limitations set forth in any of clauses (i) through (xxii) of Section 4.03(b) above with respect to such exchange, conversion or refinancing shall be deemed to be the amount of

such foreign currency, as applicable, into which such Indebtedness has been exchanged, converted or refinanced at the time of such exchange, conversion or refinancing; and

(4) if any Indebtedness denominated in a foreign currency is exchanged, converted or refinanced into Indebtedness denominated in U.S. dollars, then (in connection with such exchange, conversion or refinancing, and thereafter), the U.S. dollar amount limitations set forth in any of clauses (i) through (xxii) of Section 4.03(b) with respect to such exchange, conversion or refinancing shall be deemed to be the amount of U.S. dollars into which such Indebtedness has been exchanged, converted or refinanced at the time of such exchange, conversion or refinancing.

Accrual of interest, the accretion of accreted value, the payment of interest or dividends in the form of additional Indebtedness, Disqualified Stock or Preferred Stock, as applicable, amortization of original issue discount, the accretion of liquidation preference and increases in the amount of Indebtedness outstanding solely as a result of fluctuations in the exchange rate of currencies will not be deemed to be an Incurrence of Indebtedness, Disqualified Stock or Preferred Stock for purposes of this Section 4.03. Guarantees of, or obligations in respect of letters of credit relating to, Indebtedness which is otherwise included in the determination of a particular amount of Indebtedness shall not be included in the determination of such amount of Indebtedness; provided that the Incurrence of the Indebtedness represented by such guarantee or letter of credit, as the case may be, was in compliance with this Section 4.03.

For purposes of determining compliance with any U.S. dollar-denominated restriction on the Incurrence of Indebtedness other than as provided in clauses (3) and (4) above, the U.S. dollar-equivalent principal amount of Indebtedness denominated in a foreign currency shall be calculated based on the relevant currency exchange rate in effect on the date such Indebtedness was Incurred, in the case of term debt, or first committed or first Incurred (whichever yields the lower U.S. dollar equivalent), in the case of revolving credit debt.

Notwithstanding any other provision of this Section 4.03, the maximum amount of Indebtedness that Holdings and its Restricted Subsidiaries may Incur pursuant to this Section 4.03 shall not be deemed to be exceeded, with respect to any outstanding Indebtedness, solely as a result of fluctuations in the exchange rate of currencies.

SECTION 4.04 Limitation on Restricted Payments.

(a) Holdings shall not, and shall not permit any of its Restricted Subsidiaries to, directly or indirectly:

(i) declare or pay any dividend or make any distribution on account of any of Holdings’ or any of the Restricted Subsidiaries’ Equity Interests, including any payment made in connection with any merger, amalgamation or consolidation involving Holdings (other than (A) dividends or distributions payable solely in Equity Interests (other than Disqualified Stock) of Holdings; or (B) dividends or distributions by a Restricted Subsidiary so long as, in the case of any dividend or distribution payable on or in respect of any class or series of securities issued by a Restricted Subsidiary that is not a Wholly Owned Restricted Subsidiary, Holdings or a Restricted Subsidiary receives at least its pro

rata share of such dividend or distribution in accordance with its Equity Interests in such class or series of securities);

(ii) purchase or otherwise acquire or retire for value any Equity Interests of Holdings or any direct or indirect parent of Holdings;

(iii) make any principal payment on, or redeem, repurchase, defease or otherwise acquire or retire for value, in each case prior to any scheduled repayment or scheduled maturity, any Subordinated Indebtedness of an Issuer or any Subsidiary Guarantor (other than the payment, redemption, repurchase, defeasance, acquisition or retirement of (A) Subordinated Indebtedness in anticipation of satisfying a sinking fund obligation, principal installment or final maturity, in each case due within one year of the date of such payment, redemption, repurchase, defeasance, acquisition or retirement and (B) Indebtedness permitted under clauses (vii) and (ix) of Section 4.03(b)); or

(iv) make any Restricted Investment

(all such payments and other actions set forth in clauses (i) through (iv) above being collectively referred to as “Restricted Payments”), unless, at the time of such Restricted Payment:

(1) no Default shall have occurred and be continuing or would occur as a consequence thereof;

(2) immediately after giving effect to such transaction on a pro forma basis, Holdings could Incur $1.00 of additional Indebtedness under Section 4.03(a); and

(3) such Restricted Payment, together with the aggregate amount of all other Restricted Payments made by Holdings and the Restricted Subsidiaries after the Issue Date (including Restricted Payments permitted by clauses (i), (ii) (with respect to the payment of dividends on Refunding Capital Stock (as defined below) pursuant to clause (C) thereof), (vi)(C), (viii) and (xiii)(B) of Section 4.04(b), but excluding all other Restricted Payments permitted by Section 4.04(b)), is less than the amount equal to the Cumulative Credit.

(b) The provisions of Section 4.04(a) shall not prohibit:

(i) the payment of any dividend or distribution or the consummation of any irrevocable redemption within 60 days after the date of declaration thereof, if at the date of declaration or the giving notice of such irrevocable redemption, as applicable, such payment would have complied with the provisions of this Indenture;

(ii) (A) the redemption, repurchase, retirement or other acquisition of any Equity Interests (“Retired Capital Stock”) or Subordinated Indebtedness of Holdings, any direct or indirect parent of Holdings or any Subsidiary Guarantor in exchange for, or out of the proceeds of, the substantially concurrent sale of, Equity Interests of Holdings or any direct or indirect parent of Holdings or contributions to the equity capital of Holdings (other than any Disqualified Stock or any Equity Interests sold to a Subsidiary of Holdings) (collectively, including any such contributions, “Refunding Capital Stock”),

(B) the declaration and payment of dividends on the Retired Capital Stock out of the proceeds of the substantially concurrent sale (other than to a Subsidiary of Holdings) of Refunding Capital Stock, and

(C) if immediately prior to the retirement of Retired Capital Stock, the declaration and payment of dividends thereon was permitted under clause (vi) of this Section 4.04(b) and not made pursuant to clause (ii)(B), the declaration and payment of dividends on the Refunding Capital Stock (other than Refunding Capital Stock the proceeds of which were used to redeem, repurchase, retire or otherwise acquire any Equity Interests of any direct or indirect parent of Holdings) in an aggregate amount per year no greater than the aggregate amount of dividends per annum that were declarable and payable on such Retired Capital Stock immediately prior to such retirement;

(iii) the redemption, repurchase, defeasance, or other acquisition or retirement of Subordinated Indebtedness of an Issuer or any Subsidiary Guarantor made by exchange for, or out of the proceeds of the substantially concurrent sale of, new Indebtedness of an Issuer or a Subsidiary Guarantor which is Incurred in accordance with Section 4.03 so long as:

(A) the principal amount (or accreted value, if applicable) of such new Indebtedness does not exceed the principal amount (or accreted value, if applicable), plus any accrued and unpaid interest, of the Subordinated Indebtedness being so redeemed, repurchased, defeased, acquired or retired for value (plus the amount of any premium required to be paid under the terms of the instrument governing the Subordinated Indebtedness being so redeemed, repurchased, acquired or retired, any tender premiums, plus any defeasance costs, fees and expenses Incurred in connection therewith),

(B) such Indebtedness is subordinated to the Notes or the related Subsidiary Guarantee, as the case may be, at least to the same extent as such Subordinated Indebtedness so purchased, exchanged, redeemed, repurchased, defeased, acquired or retired for value,

(C) such Indebtedness has a final scheduled maturity date equal to or later than the earlier of (x) the final scheduled maturity date of the Subordinated Indebtedness being so redeemed, repurchased, acquired or retired and (y) 91 days following the last maturity date of any Notes then outstanding, and

(D) such Indebtedness has a Weighted Average Life to Maturity at the time Incurred which is not less than the shorter of (x) the remaining Weighted Average Life to Maturity of the Subordinated Indebtedness being so redeemed, repurchased, defeased, acquired or retired and (y) the Weighted Average Life to Maturity that would result if all payments of principal on the Subordinated Indebtedness being redeemed, repurchased, defeased, acquired or retired that were due on or after the date that is one year following the last maturity date of any Notes then outstanding were instead due on such date;

(iv) a Restricted Payment to pay for the repurchase, retirement or other acquisition for value of Equity Interests of Holdings or any direct or indirect parent of Holdings held by any future, present or former employee, director, manager or consultant of Holdings or any direct or indirect parent of Holdings or any Subsidiary of Holdings pursuant to any management equity plan or stock option plan or any other management or employee benefit plan or other agreement or arrangement; provided, however, that the aggregate Restricted Payments made under this clause (iv) do not exceed $15.0 million in any calendar year (which shall increase to $30.0 million subsequent to the consummation of an underwritten public Equity Offering), with unused amounts in any calendar year being permitted to be carried over to succeeding calendar years subject to a maximum of $30.0 million in any calendar year (which shall increase to $60.0 million subsequent to the consummation of an underwritten public Equity Offering); provided, further, however, that such amount in any calendar year may be increased by an amount not to exceed:

(A) the cash proceeds received by Holdings or any of the Restricted Subsidiaries from the sale of Equity Interests (other than Disqualified Stock) of Holdings or any direct or indirect parent of Holdings (to the extent contributed to Holdings) to members of management, directors, managers or consultants of Holdings and the Restricted Subsidiaries or any direct or indirect parent of Holdings that occurs after the Issue Date (provided that the amount of such cash proceeds utilized for any such repurchase, retirement, other acquisition or dividend will not increase the amount available for Restricted Payments under Section 4.04(a)(iii)), plus

(B) the cash proceeds of key man life insurance policies received by Holdings or any direct or indirect parent of Holdings (to the extent contributed to Holdings) or the Restricted Subsidiaries after the Issue Date;

provided that Holdings may elect to apply all or any portion of the aggregate increase contemplated by clauses (A) and (B) above in any calendar year; and provided, further, that cancellation of Indebtedness owing to Holdings or any Restricted Subsidiary from any present or former employees, directors, managers, officers or consultants of Holdings, any Restricted Subsidiary or the direct or indirect parents of Holdings in connection with a repurchase of Equity Interests of Holdings or any of its direct or indirect parents will not be deemed to constitute a Restricted Payment for purposes of this Section 4.04 or any other provision of this Indenture;

(v) the declaration and payment of dividends or distributions to holders of any class or series of Disqualified Stock of Holdings or any Restricted Subsidiary issued or Incurred in accordance with Section 4.03;

(vi) (A) the declaration and payment of dividends or distributions to holders of any class or series of Designated Preferred Stock (other than Disqualified Stock) issued after the Issue Date;

(B) a Restricted Payment to any direct or indirect parent of Holdings, the proceeds of which will be used to fund the payment of dividends to holders of any class or series of Designated Preferred Stock (other than Disqualified Stock) of any direct or indirect parent of Holdings issued after the Issue Date; provided that the aggregate amount of dividends declared and paid pursuant to this clause (B) does not exceed the net cash proceeds actually received by Holdings from any such sale of Designated Preferred Stock (other than Disqualified Stock) issued after the Issue Date; and

(C) the declaration and payment of dividends on Refunding Capital Stock that is Preferred Stock in excess of the dividends declarable and payable thereon pursuant to Section 4.04(b)(ii);

provided, however, in the case of each of clauses (A) and (C) above of this clause (vi), that for the most recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date of issuance of such Designated Preferred Stock, after giving effect to such issuance (and the payment of dividends or distributions) on a pro forma basis (including a pro forma application of the net proceeds therefrom), Holdings would have had a Fixed Charge Coverage Ratio of at least 2.00 to 1.00;

(vii) Investments in Unrestricted Subsidiaries having an aggregate Fair Market Value (as determined in good faith by Holdings), taken together with all other Investments made pursuant to this clause (vii) that are at that time outstanding, not to exceed the greater of $75.0 million and 7.5% of Adjusted Consolidated Net Tangible Assets at the time of such Investment (with the Fair Market Value of each Investment being measured at the time made and without giving effect to subsequent changes in value);

(viii) the payment of dividends after a public offering of Capital Stock of Holdings or any direct or indirect parent of Holdings on Holdings’ Capital Stock (or a Restricted Payment to any such direct or indirect parent of Holdings to fund the payment by such direct or indirect parent of Holdings of dividends on such entity’s Capital Stock) of up to 6% per annum of the total market capitalization of Holdings or any such direct or indirect parent of Holdings as of the date of such public offering, other than public offerings with respect to Holdings’ (or such direct or indirect parent’s) Capital Stock registered on Form S-4 or Form S-8 and other than any public sale constituting an Excluded Contribution;

(ix) Restricted Payments in an amount not to exceed the aggregate amount of Excluded Contributions;

(x) other Restricted Payments in an aggregate amount, when taken together with all other Restricted Payments made pursuant to this clause (x) that are at that time outstanding, not to exceed the greater of $30.0 million and 3.0% of Adjusted Consolidated Net Tangible Assets at the time made;

(xi) the distribution, as a dividend or otherwise, of shares of Capital Stock of, or Indebtedness owed to Holdings or a Restricted Subsidiary by, Unrestricted Subsidiaries;

(xii) (A) with respect to any taxable period for which Holdings and/or any of its Subsidiaries are members of a consolidated, combined, affiliated, unitary or similar income tax group for U.S. federal and/or applicable state or local income tax purposes of which a direct or indirect parent of Holdings is the common parent, or for which Holdings is a partnership or disregarded entity for U.S. federal income tax purposes that is wholly-owned (directly or indirectly) by a C-corporation for U.S. federal and/or applicable state or local income tax purposes, distributions to any direct or indirect parent of Holdings in an amount not to exceed the amount of any U.S. federal, state and/or local income taxes that Holdings and/or its Subsidiaries, as applicable, would have paid for such taxable period had Holdings and/or its Subsidiaries, as applicable, been a stand-alone corporate taxpayer or a stand-alone corporate group, and (B) with respect to any taxable period ending after the Issue Date for which Holdings is a partnership or disregarded entity for U.S. federal income tax purposes (other than a partnership or disregarded entity described in clause (A)), distributions to any direct or indirect parent of Holdings in an amount necessary to permit such direct or indirect parent of Holdings to make a pro rata distribution to its owners such that each direct or indirect owner of Holdings receives an amount from such pro rata distribution sufficient to enable such owner to pay its U.S. federal, state and/or local income taxes (as applicable) attributable to its direct or indirect ownership of Holdings and its Subsidiaries with respect to such taxable period (assuming that each owner is subject to tax at the highest combined marginal federal, state, and/or local income tax rate applicable to any owner for such taxable period and taking into account the deductibility of state and local income taxes for U.S. federal income tax purposes (and any limitations thereon), the alternative minimum tax, any cumulative net taxable loss of Holdings for prior taxable periods ending after the Issue Date to the extent such loss is of a character that would allow such loss to be available to reduce taxes in the current taxable period (taking into account any limitations on the utilization of such loss to reduce such taxes and assuming such loss had not already been utilized) and the character (e.g., long-term or short-term capital gain or ordinary or exempt) of the applicable income);

(xiii) any Restricted Payment, if applicable:

(A) in amounts required for any direct or indirect parent of Holdings or Athlon Energy to pay fees and expenses (including franchise or similar taxes) required to maintain its corporate existence, customary salary, bonus and other benefits payable to, and indemnities provided on behalf of, officers and employees of any direct or indirect parent of Holdings and general corporate operating and overhead expenses of any direct or indirect parent of Holdings or Athlon Energy in each case to the extent such fees and expenses are attributable to the ownership or operation of Holdings, if applicable, and its Subsidiaries;

(B) in amounts required for any direct or indirect parent of Holdings or Athlon Energy, if applicable, to pay interest and/or principal on Indebtedness the

proceeds of which have been contributed to Holdings or any Restricted Subsidiary and that has been guaranteed by, or is otherwise considered Indebtedness of, Holdings Incurred in accordance with Section 4.03; and

(C) in amounts required for any direct or indirect parent of Holdings or Athlon Energy to pay fees and expenses related to any successful or unsuccessful equity or debt offering of such parent or Athlon Energy, as the case may be;

(xiv) repurchases of Equity Interests deemed to occur upon exercise of stock options or warrants if such Equity Interests represent a portion of the exercise price of such options or warrants;

(xv) purchases of receivables pursuant to a Receivables Repurchase Obligation in connection with a Qualified Receivables Financing and the payment or distribution of Receivables Fees;

(xvi) Restricted Payments by Holdings or any Restricted Subsidiary to allow the payment of cash in lieu of the issuance of fractional shares upon the exercise of options or warrants or upon the conversion or exchange of Capital Stock of any such Person;

(xvii) the repurchase, redemption or other acquisition or retirement for value of any Subordinated Indebtedness pursuant to provisions similar to those described in Section 4.06 and Section 4.08; provided that all Notes tendered by holders of the Notes in connection with a Change of Control Offer or Asset Sale Offer, as applicable, have been repurchased, redeemed or acquired for value; and

(xviii) payments or distributions to dissenting stockholders pursuant to applicable law, pursuant to or in connection with a consolidation, amalgamation, merger or transfer of all or substantially all of the assets of Holdings and the Restricted Subsidiaries, taken as a whole, that complies with Section 5.01; provided that as a result of such consolidation, amalgamation, merger or transfer of assets, Holdings shall have made a Change of Control Offer (if required by this Indenture) and that all Notes tendered by holders in connection with such Change of Control Offer have been repurchased, redeemed or acquired for value;

provided, however, that at the time of, and after giving effect to, any Restricted Payment permitted under clauses (vi)(B), (vii), (x), (xi) and (xiii)(B) of this Section 4.04(b), no Default shall have occurred and be continuing or would occur as a consequence thereof; provided, further that any Restricted Payments made with property other than cash shall be calculated using the Fair Market Value (as determined in good faith by Holdings) of such property.

(c) For purposes of determining compliance with this “Restricted Payments” covenant, if a Restricted Payment meets the criteria of more than one of the categories of Restricted Payments described in clauses (i) — (xviii) of Section 4.04, the Issuers will be permitted to divide or classify (or later divide, classify or reclassify in whole or in part in its sole discretion) such Restricted Payment in any manner that complies with this covenant.

(d) As of the Issue Date, all of the Subsidiaries of Holdings will be Restricted Subsidiaries. Holdings will not permit any Unrestricted Subsidiary to become a Restricted Subsidiary except pursuant to the definition of “Unrestricted Subsidiary.” For purposes of designating any Restricted Subsidiary as an Unrestricted Subsidiary, all outstanding Investments by Holdings and the Restricted Subsidiaries (except to the extent repaid) in the Subsidiary so designated will be deemed to be Restricted Payments in an amount determined as set forth in the last sentence of the definition of “Investments.” Such designation will only be permitted if a Restricted Payment or Permitted Investment in such amount would be permitted at such time and if such Subsidiary otherwise meets the definition of an Unrestricted Subsidiary.

SECTION 4.05 Dividend and Other Payment Restrictions Affecting Subsidiaries. Holdings shall not, and shall not permit any of the Restricted Subsidiaries to, directly or indirectly, create or otherwise cause or suffer to exist or become effective any consensual encumbrance or consensual restriction on the ability of Holdings or such Restricted Subsidiary to:

(a) (i) pay dividends or make any other distributions to Holdings or any Restricted Subsidiary on its Capital Stock; or (ii) pay any Indebtedness owed to Holdings or any Restricted Subsidiary;

(b) make loans or advances to Holdings or any Restricted Subsidiary; or

except in each case for such encumbrances or restrictions existing under or by reason of:

(1) (A) contractual encumbrances or restrictions in effect on the Issue Date and (B) contractual encumbrances or restrictions pursuant to the Credit Agreement and the other Credit Agreement Documents and, in each case, any similar contractual encumbrances effected by any amendments, modifications, restatements, renewals, supplements, refundings, replacements or refinancings of such agreements or instruments;

(2) the 2021 Senior Notes;

(3) this Indenture, the Notes or the Subsidiary Guarantees;

(4) applicable law or any applicable rule, regulation or order;

(5) any agreement or other instrument of a Person acquired by Holdings or any Restricted Subsidiary which was in existence at the time of such acquisition (but not created in contemplation thereof or to provide all or any portion of the funds or credit support utilized to consummate such acquisition), which encumbrance or restriction is not applicable to any Person, or the properties or assets of any Person, other than the Person and its Subsidiaries, or the property or assets of the Person and its Subsidiaries, so acquired;

(6) contracts or agreements for the sale of assets, including any restriction with respect to a Restricted Subsidiary imposed pursuant to an agreement entered into for the sale or disposition of the Capital Stock or assets of such Restricted Subsidiary;

(7) Secured Indebtedness otherwise permitted to be Incurred pursuant to Section 4.03 and Section 4.12 that limit the right of the debtor to dispose of the assets securing such Indebtedness;

(8) restrictions on cash or other deposits or net worth imposed by customers under contracts entered into in the ordinary course of business;

(9) customary provisions in joint venture agreements and other similar agreements entered into in the ordinary course of business;

(10) purchase money obligations for property acquired and Capitalized Lease Obligations in the ordinary course of business that impose restrictions of the nature discussed in clause (c) above on the property so acquired;

(11) customary provisions contained in leases, licenses and other similar agreements entered into in the ordinary course of business;

(12) in the case of clause (c) above, any encumbrance or restriction that restricts in a customary manner the subletting, assignment or transfer of any property or asset that is subject to a lease (including leases governing leasehold interests or Farm-In Agreements or Farm-Out Agreements relating to leasehold interests in Oil and Gas Properties), license or similar contract, or the assignment or transfer of any such lease (including leases governing leasehold interests or Farm-In Agreements or Farm-Out Agreements relating to leasehold interests in Oil and Gas Properties), license (including, without limitation, licenses of intellectual property) or other contracts;

(13) any encumbrance or restriction of a Receivables Subsidiary effected in connection with a Qualified Receivables Financing; provided, however, that such restrictions apply only to such Receivables Subsidiary;

(14) other Indebtedness, Disqualified Stock or Preferred Stock (a) of Holdings or any Restricted Subsidiary that is the Co-Issuer, a Subsidiary Guarantor or a Foreign Subsidiary or (b) of any Restricted Subsidiary that is not the Co-Issuer, a Subsidiary Guarantor or a Foreign Subsidiary so long as such encumbrances and restrictions contained in any agreement or instrument will not materially affect the Issuers’ ability to make anticipated principal or interest payments on the Notes (as determined in good faith by Holdings), provided that in the case of each of clauses (a) and (b), such Indebtedness, Disqualified Stock or Preferred Stock is permitted to be Incurred subsequent to the Issue Date pursuant to Section 4.03;

(15) any Restricted Investment not prohibited by Section 4.04 and any Permitted Investment;

(16) any customary encumbrances or restrictions imposed pursuant to any agreement of the type described in the definition of “Permitted Business Investment”; or

(17) any encumbrances or restrictions of the type referred to in Section 4.05(a), (b) or (c) above imposed by any amendments, modifications, restatements, renewals, increases, supplements, refundings, replacements or refinancings of the contracts, instruments or obligations referred to in clauses (1) through (16) above; provided that such amendments, modifications, restatements, renewals, increases, supplements, refundings, replacements or refinancings are, in the good faith judgment of Holdings, no more restrictive with respect to such dividend and other payment restrictions than those contained in the dividend or other payment restrictions prior to such amendment, modification, restatement, renewal, increase, supplement, refunding, replacement or refinancing.

For purposes of determining compliance with this Section 4.05, (i) the priority of any Preferred Stock in receiving dividends or liquidating distributions prior to dividends or liquidating distributions being paid on common stock shall not be deemed a restriction on the ability to make distributions on Capital Stock and (ii) the subordination of loans or advances made to Holdings or a Restricted Subsidiary to other Indebtedness Incurred by Holdings or any such Restricted Subsidiary shall not be deemed a restriction on the ability to make loans or advances.

SECTION 4.06 Asset Sales.

(a) Holdings shall not, and shall not permit any of the Restricted Subsidiaries to, cause or make an Asset Sale, unless (x) Holdings or any Restricted Subsidiary, as the case may be, receives consideration at the time of such Asset Sale at least equal to the Fair Market Value (as determined in good faith by Holdings) of the assets sold or otherwise disposed of, and (y) at least 75% of the consideration therefor received by Holdings or such Restricted Subsidiary, as the case may be, is in the form of Cash Equivalents or Additional Assets; provided that the amount of:

(i) any liabilities (as shown on Holdings’ or a Restricted Subsidiary’s most recent balance sheet or in the notes thereto) of Holdings or a Restricted Subsidiary (other than liabilities that are by their terms subordinated to the Notes or any Subsidiary Guarantee) that are assumed by the transferee of any such assets or that are otherwise cancelled or terminated in connection with the transaction with such transferee,

(ii) any notes or other obligations or other securities or assets received by Holdings or such Restricted Subsidiary from such transferee that are converted by Holdings or such Restricted Subsidiary into cash within 180 days of the receipt thereof (to the extent of the cash received),

(iii) with respect to any Asset Sale of Oil and Gas Properties by Holdings or any Restricted Subsidiary, the costs and expenses related to the exploration, development, completion or production of such Oil and Gas Properties and activities related thereto agreed to be assumed by the transferee (or an Affiliate thereof),

(iv) Indebtedness of any Restricted Subsidiary that is no longer a Restricted Subsidiary as a result of such Asset Sale, to the extent that Holdings and each other Restricted Subsidiary are released from any guarantee of payment of such Indebtedness in connection with the Asset Sale,

(v) consideration consisting of Indebtedness of Holdings (other than Subordinated Indebtedness) received after the Issue Date from Persons who are not Holdings or any Restricted Subsidiary in connection with the Asset Sale and that is cancelled, and

(vi) any Designated Non-cash Consideration received by Holdings or any Restricted Subsidiary in such Asset Sale having an aggregate Fair Market Value (as determined in good faith by Holdings), taken together with all other Designated Non-cash Consideration received pursuant to this Section 4.06(a)(vi) that is at that time outstanding, not to exceed the greater of 10.0% of Adjusted Consolidated Net Tangible Assets and $100.0 million at the time of the receipt of such Designated Non-cash Consideration (with the Fair Market Value of each item of Designated Non-cash Consideration being measured at the time received and without giving effect to subsequent changes in value),

shall be deemed to be Cash Equivalents for the purposes of this Section 4.06(a).

(b) Within 365 days after Holdings’ or any Restricted Subsidiary’s receipt of the Net Proceeds of any Asset Sale, Holdings or such Restricted Subsidiary may apply the Net Proceeds from such Asset Sale, at its option:

(i) to repay (A) Indebtedness constituting Bank Indebtedness and other Pari Passu Indebtedness that is secured by a Lien permitted under this Indenture, (B) Indebtedness of a Restricted Subsidiary that is not a Subsidiary Guarantor, (C) Obligations under the Notes or (D) other Pari Passu Indebtedness (provided that if an Issuer or any Subsidiary Guarantor shall so reduce Obligations under unsecured Pari Passu Indebtedness, the Issuers will equally and ratably reduce Obligations under the Notes pursuant to Section 3.01) through open-market purchases (provided that such purchases are at or above 100% of the principal amount thereof or, in the event that the Notes were issued with significant original issue discount, 100% of the accreted value thereof) or by making an offer (in accordance with the procedures set forth below for an Asset Sale Offer) to all holders to purchase at a purchase price equal to 100% of the principal amount thereof (or, in the event that the Notes were issued with significant original issue discount, 100% of the accreted value thereof), plus accrued and unpaid interest, if any, the pro rata principal amount of Notes, in each case other than Indebtedness owed to Holdings or an Affiliate of Holdings;

(ii) to make an Investment in any one or more businesses (provided that if such Investment is in the form of the acquisition of Capital Stock of a Person, such acquisition results in such Person becoming a Restricted Subsidiary), assets, or property or capital expenditures, in each case (A) used or useful in a Similar Business or (B) that replace the properties and assets that are the subject of such Asset Sale; or

(iii) to invest in Additional Assets.

In the case of Section 4.06(b)(ii), a binding commitment shall be treated as a permitted application of the Net Proceeds from the date of such commitment until the 18-month anniversary of the date of the receipt of such Net Proceeds; provided that in the event such binding commitment is later canceled or terminated for any reason before such Net Proceeds are so applied, then such Net Proceeds shall constitute Excess Proceeds unless Holdings or such Restricted Subsidiary enters into another binding commitment (a “Second Commitment”) within six months of such cancellation or termination of the prior binding commitment; provided, further, that Holdings or such Restricted Subsidiary may only enter into a Second Commitment under the foregoing provision one time with respect to each Asset Sale and to the extent such Second Commitment is later cancelled or terminated for any reason before such Net Proceeds are applied or are not applied within 180 days of such Second Commitment, then such Net Proceeds shall constitute Excess Proceeds.

Pending the final application of any such Net Proceeds, Holdings or such Restricted Subsidiary may invest such Net Proceeds in any manner not prohibited by this Indenture. Any Net Proceeds from any Asset Sale that are not applied as provided and within the time period set forth in the first sentence of this Section 4.06(b) (it being understood that any portion of such Net Proceeds used to make an offer to purchase Notes, as described in clause (i) of this Section 4.06(b), shall be deemed to have been invested whether or not such offer is accepted) will be deemed to constitute “Excess Proceeds.” When the aggregate amount of Excess Proceeds exceeds $25.0 million, the Issuers shall make an offer to all holders of Notes (and, at the option of the Issuers, to holders of any Pari Passu Indebtedness) (an “Asset Sale Offer”) to purchase the maximum principal amount of Notes (and such Pari Passu Indebtedness), that is at least $2,000 and an integral multiple of $1,000 in excess thereof that may be purchased out of the Excess Proceeds at an offer price in cash in an amount equal to 100% of the principal amount thereof (or, in the event the Notes or such Pari Passu Indebtedness was issued with significant original issue discount, 100% of the accreted value thereof), plus accrued and unpaid interest, if any (or, in respect of such Pari Passu Indebtedness, such lesser price, if any, as may be provided for by the terms of such Pari Passu Indebtedness), to the date fixed for the closing of such offer, in accordance with the procedures set forth in this Section 4.06. The Issuers will commence an Asset Sale Offer with respect to Excess Proceeds within ten (10) Business Days after the date that Excess Proceeds exceeds $25.0 million by mailing the notice required pursuant to the terms of Sections 3.05 and 4.06(f), with a copy to the Trustee. To the extent that the aggregate amount of Notes (and such Pari Passu Indebtedness) tendered pursuant to an Asset Sale Offer is less than the Excess Proceeds, Holdings may use any remaining Excess Proceeds for any purpose that is not prohibited by this Indenture. If the aggregate principal amount of Notes (and such Pari Passu Indebtedness) surrendered by holders thereof exceeds the amount of Excess Proceeds, the Trustee shall select the Notes to be purchased in the manner described in Section 4.06(e). Upon completion of any such Asset Sale Offer, the amount of Excess Proceeds shall be reset at zero.

(c) The Issuers will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations to the extent such laws or regulations are applicable in connection with the repurchase of the Notes pursuant to an Asset Sale Offer. To the extent that the provisions of any securities laws or regulations conflict with the provisions of

this Indenture, the Issuers will comply with the applicable securities laws and regulations and shall not be deemed to have breached its obligations described in this Indenture by virtue thereof.

(d) Not later than the date upon which written notice of an Asset Sale Offer is delivered to the Trustee as provided above, Holdings shall deliver to the Trustee an Officers’ Certificate as to (i) the amount of the Excess Proceeds, (ii) the allocation of the Net Proceeds from the Asset Sales pursuant to which such Asset Sale Offer is being made and (iii) the compliance of such allocation with the provisions of Section 4.06(b). On such date, the Issuers shall also irrevocably deposit with the Trustee or with a paying agent (or, if an Issuer or a Wholly Owned Restricted Subsidiary is acting as the Paying Agent, segregate and hold in trust) an amount equal to the Excess Proceeds to be invested in Cash Equivalents, as directed in writing by Holdings and to be held for payment in accordance with the provisions of this Section 4.06. Upon the expiration of the period for which the Asset Sale Offer remains open (the “Offer Period”), the Issuers shall deliver to the Trustee for cancellation the Notes or portions thereof that have been properly tendered to and are to be accepted by the Issuers. The Trustee (or the Paying Agent, if not the Trustee) shall, on the date of purchase, mail or deliver payment to each tendering holder in the amount of the purchase price. In the event that the Excess Proceeds delivered by the Issuers to the Trustee are greater than the purchase price of the Notes tendered, the Trustee shall deliver the excess to the Issuers immediately after the expiration of the Offer Period for application in accordance with this Section 4.06.

(e) Holders electing to have a Note purchased shall be required to surrender the Note, with an appropriate form duly completed, to the Issuers at the address specified in the notice at least three Business Days prior to the purchase date. Holders shall be entitled to withdraw their election if the Trustee or an Issuer receives not later than one Business Day prior to the purchase date, a facsimile or electronic transmission or letter setting forth the name of the holder, the principal amount of the Note which was delivered by the holder for purchase and a statement that such holder is withdrawing his election to have such Note purchased. If at the end of the Offer Period more Notes (and such Pari Passu Indebtedness) are tendered pursuant to an Asset Sale Offer than the Issuers are required to purchase, selection of such Notes for purchase shall be made by the Trustee in compliance with the requirements of the principal national securities exchange, if any, on which such Notes are listed, or if such Notes are not so listed, on a pro rata basis, by lot or by such other method as the Trustee shall deem fair and appropriate (and in such manner as complies with applicable legal requirements); provided that no Notes of $2,000 or less shall be purchased in part. Selection of such Pari Passu Indebtedness shall be made pursuant to the terms of such Pari Passu Indebtedness.

(f) Notices of an Asset Sale Offer shall be mailed by first class mail, postage prepaid, at least 30 but not more than 60 days before the purchase date to each holder of Notes at such holder’s registered address. If any Note is to be purchased in part only, any notice of purchase that relates to such Note shall state the portion of the principal amount thereof that has been or is to be purchased.

SECTION 4.07 Transactions with Affiliates.

(a) Holdings shall not, and shall not permit any of the Restricted Subsidiaries to, directly or indirectly, make any payment to, or sell, lease, transfer or otherwise dispose of any

of its properties or assets to, or purchase any property or assets from, or enter into or make or amend any transaction or series of transactions, contract, agreement, understanding, loan, advance or guarantee with, or for the benefit of, any Affiliate of Holdings (each of the foregoing, an “Affiliate Transaction”) involving aggregate consideration in excess of $15.0 million, unless:

(i) such Affiliate Transaction is on terms that are not materially less favorable to Holdings or the relevant Restricted Subsidiary than those that could have been obtained in a comparable transaction by Holdings or such Restricted Subsidiary with an unrelated Person; and

(ii) with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate consideration in excess of $30.0 million, Holdings delivers to the Trustee a resolution adopted in good faith by the majority of the Board of Directors of Holdings, approving such Affiliate Transaction and set forth in an Officers’ Certificate certifying that such Affiliate Transaction complies with clause (i) above.

(b) The provisions of Section 4.07(a) shall not apply to the following:

(i) transactions between or among Holdings and/or any of the Restricted Subsidiaries (or an entity that becomes a Restricted Subsidiary as a result of such transaction) and any merger, consolidation or amalgamation of Holdings and any direct parent of Holdings; provided that such parent shall have no material liabilities and no material assets other than cash, Cash Equivalents and the Capital Stock of Holdings and such merger, consolidation or amalgamation is otherwise in compliance with the terms of this Indenture and effected for a bona fide business purpose;

(ii) Restricted Payments permitted by Section 4.04 and Permitted Investments;

(iii) the payment of customary fees and reimbursement of expenses paid to, and indemnity provided on behalf of, officers, directors, managers, employees or consultants of Holdings, any Restricted Subsidiary, or any direct or indirect parent of Holdings;

(iv) transactions in which Holdings or any Restricted Subsidiary, as the case may be, delivers to the Trustee a letter from an Independent Financial Advisor stating that such transaction is fair to Holdings or such Restricted Subsidiary from a financial point of view or meets the requirements of clause (i) of Section 4.07(a);

(v) payments or loans (or cancellation of loans) to officers, directors, managers, employees or consultants which are approved by a majority of the Board of Directors of Holdings in good faith;

(vi) any agreement as in effect as of the Issue Date or any amendment thereto (so long as any such agreement together with all amendments thereto, taken as a whole, is not more disadvantageous to the holders of the Notes in any material respect than the original agreement as in effect on the Issue Date) or any transaction contemplated thereby as determined in good faith by Holdings;

(vii) the existence of, or the performance by Holdings or any Restricted Subsidiary of its obligations under the terms of any stockholders or limited liability company agreement (including any registration rights agreement or purchase agreement related thereto) to which it is a party as of the Issue Date, and any transaction, agreement or arrangement described in the Offering Memorandum and, in each case, any amendment thereto or similar transactions, agreements or arrangements which it may enter into thereafter; provided, however, that the existence of, or the performance by Holdings or any Restricted Subsidiary of its obligations under, any future amendment to any such existing transaction, agreement or arrangement or under any similar transaction, agreement or arrangement entered into after the Issue Date shall only be permitted by this clause (vii) to the extent that the terms of any such existing transaction, agreement or arrangement together with all amendments thereto, taken as a whole, or new transaction, agreement or arrangement are not otherwise more disadvantageous to the holders of the Notes in any material respect than the original transaction, agreement or arrangement as in effect on the Issue Date;

(viii) (A) transactions with customers, clients, suppliers or purchasers or sellers of goods or services, or transactions otherwise relating to the purchase or sale of goods or services, in each case in the ordinary course of business and otherwise in compliance with the terms of this Indenture, which are fair to Holdings and the Restricted Subsidiaries in the reasonable determination of the Board of Directors or the senior management of Holdings, or are on terms at least as favorable as might reasonably have been obtained at such time from an unaffiliated party or (B) transactions with joint ventures or Unrestricted Subsidiaries entered into in the ordinary course of business and consistent with past practice or industry custom;

(ix) any transaction effected as part of a Qualified Receivables Financing;

(x) the issuance of Equity Interests (other than Disqualified Stock) of Holdings to any Person;

(xi) the issuances of securities or other payments, awards or grants in cash, securities or otherwise pursuant to, or the funding of, employment arrangements, stock option and stock ownership plans or similar employee benefit plans approved by the Board of Directors of Holdings or any direct or indirect parent of Holdings or of a Restricted Subsidiary, as appropriate, in good faith;

(xii) the entering into of any tax sharing agreement or arrangement that complies with Section 4.04(b)(xii);

(xiii) any contribution to the capital of Holdings;

(xiv) transactions permitted by, and complying with, Section 5.01;

(xv) transactions between Holdings or any Restricted Subsidiary and any Person, a director of which is also a director or manager of Holdings or any direct or indirect parent of Holdings; provided, however, that such director or manager abstains

from voting as a director or manager of Holdings or such direct or indirect parent, as the case may be, on any matter involving such other Person;

(xvi) transactions with a Person that is an Affiliate of Holdings or Athlon Energy solely because Holdings or Athlon Energy, as the case may be, owns, directly or through a Restricted Subsidiary, an Investment in, or controls, such Person;

(xvii) pledges of Equity Interests of Unrestricted Subsidiaries;

(xviii) the formation and maintenance of any consolidated group or subgroup for tax, accounting or cash pooling or management purposes in the ordinary course of business;

(xix) any employment agreements entered into by Holdings or any Restricted Subsidiary in the ordinary course of business;

(xx) payments by Holdings or any of its Restricted Subsidiaries to any of the Sponsors made for any financial advisory, financing, underwriting or placement services or in respect of other investment banking activities, including in connection with acquisitions or divestitures, which payments are approved by a majority of the Board of Directors of Holdings in good faith;

(xxi) transactions undertaken in good faith (as certified by a responsible financial or accounting officer of Holdings in an Officers’ Certificate) for the purpose of improving the consolidated tax efficiency of Holdings and its Subsidiaries and not for the purpose of circumventing any covenant set forth in this Indenture;

(xxii) investments by the Sponsors in securities of Holdings or any Restricted Subsidiary (and payment of reasonable out-of-pocket expenses Incurred by the Sponsors in connection therewith) so long as (i) the investment is being generally offered to other investors on the same or more favorable terms and (ii) the investment constitutes less than 5% of the proposed or outstanding issue amount of such class of securities; and

(xxiii) customary agreements and arrangements with oil and natural gas royalty trusts and master limited partnership agreements that comply with the affiliate transaction provisions of such royalty trust or master limited partnership agreement.

SECTION 4.08 Change of Control.

(a) Upon the occurrence of a Change of Control Triggering Event, each holder shall have the right to require the Issuers to repurchase all or any part of such holder’s Notes at a purchase price in cash equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the date of repurchase (the “Change of Control Payment”) (subject to the right of the holders of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date), in accordance with the terms contemplated in this Section 4.08; provided, however, that notwithstanding the occurrence of a Change of Control Triggering Event, the Issuer shall not be obligated to purchase any Notes pursuant to this Section 4.08 in the event that it has exercised its right to redeem such Notes in accordance with

Article III of this Indenture. In the event that at the time of such Change of Control Triggering Event, the terms of the Bank Indebtedness restrict or prohibit the repurchase of Notes pursuant to this Section 4.08, then prior to the mailing of the notice to the holders provided for in Section 4.08(b) but in any event within 30 days following any Change of Control Triggering Event, the Issuers shall (i) repay in full all Bank Indebtedness or, if doing so will allow the purchase of Notes, offer to repay in full all Bank Indebtedness and repay the Bank Indebtedness of each lender and/or noteholder who has accepted such offer, or (ii) obtain the requisite consent under the agreements governing the Bank Indebtedness to permit the repurchase of the Notes as provided for in Section 4.08(b).

(b) Within 30 days following any Change of Control Triggering Event, except to the extent that the Issuers have exercised their right to redeem the Notes in accordance with Article III of this Indenture, the Issuers shall mail a notice (a “Change of Control Offer”) to each holder with a copy to the Trustee (or deliver a notice pursuant to the procedures of DTC) stating:

(i) that a Change of Control Triggering Event has occurred and that such holder has the right to require the Issuers to repurchase such holder’s Notes for the Change of Control Payment (subject to the right of the holders of record on the relevant Record Date to receive interest on the relevant Interest Payment Date);

(ii) the circumstances regarding such Change of Control;

(iii) the repurchase date (which shall be no earlier than 30 days nor later than 60 days from the date such notice is mailed); and

(iv) the instructions determined by the Issuers, consistent with this Section 4.08, that a holder must follow in order to have its Notes purchased.

(c) Holders electing to have a Note purchased shall be required to surrender the Note, with an appropriate form duly completed, to the Issuers at the address specified in the notice at least three Business Days prior to the purchase date. The holders shall be entitled to withdraw their election if the Trustee or the Issuers receive not later than one Business Day prior to the purchase date a facsimile or electronic transmission or letter setting forth the name of the holder, the principal amount of the Note which was delivered for purchase by the holder and a statement that such holder is withdrawing his election to have such Note purchased. Holders whose Notes are purchased only in part shall be issued new Notes equal in principal amount to the unpurchased portion of the Notes surrendered.

(d) On the purchase date, all Notes purchased by the Issuers under this Section 4.08 shall be delivered to the Trustee for cancellation, and the Issuers shall pay the purchase price plus accrued and unpaid interest to the holders entitled thereto.

(e) A Change of Control Offer may be made in advance of a Change of Control, and conditioned upon such Change of Control, if a definitive agreement is in place for the Change of Control at the time of making of the Change of Control Offer.

(f) Notwithstanding the foregoing provisions of this Section 4.08, the Issuers shall not be required to make a Change of Control Offer upon a Change of Control Triggering

Event if (i) a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Section 4.08 applicable to a Change of Control Offer made by the Issuers and purchases all Notes validly tendered and not withdrawn under such Change of Control Offer; (ii) notice of redemption of all outstanding Notes has been given pursuant to Section 3.05, unless and until there is a default in payment of the applicable redemption price; or (iii) in connection with or in contemplation of any Change of Control, the Issuers have made an offer to purchase (an “Alternate Offer”) any and all Notes validly tendered at a cash price equal to or higher than the Change of Control Payment and have purchased all Notes properly tendered in accordance with the terms of the Alternate Offer.

(g) Notes repurchased by the Issuers pursuant to a Change of Control Offer will have the status of Notes issued but not outstanding or will be retired and canceled at the option of the Issuers. Notes purchased by a third party pursuant to the preceding clause (f) will have the status of Notes issued and outstanding.

(h) If Holders of not less than 90% in aggregate principal amount of the outstanding Notes validly tender and do not withdraw such Notes in a Change of Control Offer and the Issuers, or any third party making a Change of Control Offer in lieu of the Issuers as set forth in this Section 4.08, purchase all of the Notes validly tendered and not withdrawn by such Holders, the Issuers or such third party will have the right, upon not less than 30 nor more than 60 days’ prior notice, given not more than 30 days following such purchase pursuant to the Change of Control Offer as set forth in this Section 4.08, to redeem all Notes that remain outstanding following such purchase at a price in cash equal to the Change of Control Payment.

(i) At the time the Issuers deliver Notes to the Trustee which are to be accepted for purchase, Holdings shall also deliver an Officers’ Certificate stating that such Notes are to be accepted by the Issuers pursuant to and in accordance with the terms of this Section 4.08. A Note shall be deemed to have been accepted for purchase at the time the Trustee, directly or through an agent, mails or delivers payment therefor to the surrendering holder.

(j) Prior to any Change of Control Offer, Holdings shall deliver to the Trustee an Officers’ Certificate stating that all conditions precedent contained herein to the right of the Issuers to make such offer have been complied with.

(k) The Issuers shall comply, to the extent applicable, with the requirements of Section 14(e) of the Exchange Act and any other securities laws or regulations in connection with the repurchase of Notes pursuant to this Section. To the extent that the provisions of any securities laws or regulations conflict with provisions of this Section 4.08, the Issuers shall comply with the applicable securities laws and regulations and shall not be deemed to have breached their obligations under this Section by virtue of such compliance.

SECTION 4.09 Compliance Certificate. Holdings shall deliver to the Trustee within 120 days after the end of each fiscal year of Holdings, beginning with the fiscal year ending on December 31, 2014, an Officers’ Certificate stating that in the course of the performance by the signers of their duties as Officers of Holdings they would normally have knowledge of any Default and whether or not the signers know of any Default that occurred

during such period. If any Officer does, the certificate shall describe the Default, its status and what action the Issuers are taking or propose to take with respect thereto. The Issuers also shall comply with Section 314(a)(4) of the TIA. Except with respect to receipt of payments of principal and interest on the Notes and any Default or Event of Default information contained in the Officers’ Certificate delivered to it pursuant to this Section 4.09, the Trustee shall have no duty to review, ascertain or confirm the Issuers’ compliance with or the breach of any representation, warranty or covenant made in this Indenture.

SECTION 4.10 Further Instruments and Acts. Upon request of the Trustee, the Issuers shall execute and deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the purpose of this Indenture.

SECTION 4.11 Future Subsidiary Guarantors. Holdings shall cause each Wholly Owned Restricted Subsidiary that is not an Excluded Subsidiary and that guarantees any Indebtedness of an Issuer or any of the Subsidiary Guarantors to execute and deliver to the Trustee a supplemental indenture within 45 days of the date on which it guaranteed such Indebtedness substantially in the form of Exhibit D hereto pursuant to which such Wholly Owned Restricted Subsidiary will guarantee the Issuers’ Obligations under the Notes and this Indenture.

SECTION 4.12 Liens.

(a) Holdings shall not, and shall not permit any of its Restricted Subsidiaries to, directly or indirectly, create, Incur or suffer to exist any Lien (except Permitted Liens) on any asset or property of Holdings or such Restricted Subsidiary securing Indebtedness of Holdings or a Restricted Subsidiary unless the Notes are equally and ratably secured with (or on a senior basis to, in the case of obligations subordinated in right of payment to the Notes) the obligations so secured until such time as such obligations are no longer secured by a Lien.

(b) Section 4.12(a) shall not require Holdings or any of its Restricted Subsidiaries to secure the Notes if the Lien consists of a Permitted Lien. Any Lien that is granted to secure the Notes or any Subsidiary Guarantee under Section 4.12(a) shall be automatically released and discharged at the same time as the release of the Lien that gave rise to the obligation to secure the Notes or such Subsidiary Guarantee under such Section 4.12(a).

(c) For purposes of determining compliance with this Section 4.12, (i) a Lien securing an item of Indebtedness need not be permitted solely by reference to one category of permitted Liens described in the definition of “Permitted Liens” or pursuant to Section 4.12(a) but may be permitted in part under any combination thereof and (ii) in the event that a Lien securing an item of Indebtedness, Disqualified Stock or Preferred Stock (or any portion thereof) meets the criteria of one or more of the categories of permitted Liens described in the definition of “Permitted Liens” or pursuant to Section 4.12(a), Holdings shall, in its sole discretion, classify or reclassify, or later divide, classify or reclassify, such Lien securing such item of Indebtedness (or any portion thereof) in any manner that complies with this covenant and will only be required to include the amount and type of such Lien or such item of Indebtedness secured by such Lien in one of the clauses of the definition of “Permitted Liens” and such Lien securing such item of

Indebtedness will be treated as being Incurred or existing pursuant to only one of such clauses or pursuant to Section 4.12(a).

(d) With respect to any Lien securing Indebtedness that was permitted to secure such Indebtedness at the time of the Incurrence of such Indebtedness, such Lien shall also be permitted to secure any Increased Amount of such Indebtedness. The “Increased Amount” of any Indebtedness shall mean any increase in the amount of such Indebtedness in connection with any accrual of interest, the accretion of accreted value, the amortization of original issue discount, the payment of interest in the form of additional Indebtedness with the same terms or in the form of common stock of Holdings, the payment of dividends on Preferred Stock in the form of additional shares of Preferred Stock of the same class, accretion of original issue discount or liquidation preference and increases in the amount of Indebtedness outstanding solely as a result of fluctuations in the exchange rate of currencies or increases in the value of property securing Indebtedness described in clause (3) of the definition of “Indebtedness.”

SECTION 4.13 [Intentionally Omitted].

SECTION 4.14 Maintenance of Office or Agency.

(a) The Issuers shall maintain an office or agency (which may be an office of the Trustee or an affiliate of the Trustee or Registrar) where Notes may be surrendered for registration of transfer or for exchange. The Issuers shall give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Issuers shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations and surrenders may be made at the Corporate Trust Office of the Trustee as set forth in Section 14.02.

(b) The Issuers may also from time to time designate one or more other offices or agencies where the Notes may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided, however, that no such designation or rescission shall in any manner relieve an Issuer of its obligation to maintain an office or agency for such purposes. The Issuers shall give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

(c) The Issuers hereby designates the Corporate Trust Office of the Trustee or its agent as such office or agency of the Issuers in accordance with Section 2.04.

SECTION 4.15 Covenant Suspension. If on any date following the Issue Date, (i) the Notes have Investment Grade Ratings from both Rating Agencies, and (ii) no Default has occurred and is continuing under this Indenture, then, beginning on that day (the occurrence of the events described in the foregoing clauses (i) and (ii) being collectively referred to as a “Covenant Suspension Event”), and subject to the provisions of the following paragraph, the Issuers and the Restricted Subsidiaries shall not be subject to Sections 4.03, 4.04, 4.05, 4.06, 4.07, 4.11 and 5.01(a)(iv) (collectively the “Suspended Covenants”).

In the event that Holdings and its Restricted Subsidiaries are not subject to the Suspended Covenants under this Indenture for any period of time as a result of the foregoing,

and on any subsequent date (the “Reversion Date”) one or both of the Rating Agencies withdraw their Investment Grade Rating or downgrade the rating assigned to the Notes below an Investment Grade Rating, then Holdings and its Restricted Subsidiaries will thereafter again be subject to the Suspended Covenants under this Indenture with respect to future events. No Default, Event of Default or breach of any kind shall be deemed to exist under this Indenture, the Notes or the Subsidiary Guarantees with respect to the Suspended Covenants based on, and neither Holdings nor any of its Subsidiaries shall bear any liability for, any actions taken or events occurring during the Suspension Period, or any actions taken at any time pursuant to any contractual obligation arising during the Suspension Period, regardless of whether such actions or events would have been permitted if the applicable Suspended Covenants remained in effect during such period.

On each Reversion Date, all Indebtedness Incurred, or Disqualified Stock or Preferred Stock issued, during the Suspension Period will be classified as having been Incurred or issued pursuant to Sections 4.03(a) and (b) (to the extent such Indebtedness or Disqualified Stock or Preferred Stock would be permitted to be Incurred or issued thereunder as of the Reversion Date and after giving effect to Indebtedness Incurred or issued prior to the Suspension Period and outstanding on the Reversion Date). To the extent such Indebtedness or Disqualified Stock or Preferred Stock would not be so permitted to be Incurred or issued pursuant to Sections 4.03(a) and (b), such Indebtedness or Disqualified Stock or Preferred Stock will be deemed to have been outstanding on the Issue Date, so that it is classified as permitted under Section 4.03(b)(iii). Calculations made after the Reversion Date of the amount available to be made as Restricted Payments under Section 4.04 will be made as though Section 4.04 had been in effect since the Issue Date and prior to, but not during, the Suspension Period. Accordingly, Restricted Payments made during the Suspension Period will not reduce the amount available to be made as Restricted Payments under Section 4.04(a). As described above, however, no Default or Event of Default will be deemed to have occurred on the Reversion Date as a result of any actions taken by Holdings or its Restricted Subsidiaries during the Suspension Period. Within 30 days of such Reversion Date, the Issuers must comply with the terms of Section 4.11.

For purposes of Section 4.06, on the Reversion Date, the unutilized Excess Proceeds amount will be reset to zero.

ARTICLE V

SUCCESSOR COMPANY

SECTION 5.01 When Issuers May Merge or Transfer Assets.

(a) Holdings may not, directly or indirectly, consolidate, amalgamate or merge with or into or wind up or convert into (whether or not Holdings is the surviving Person), or sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or assets in one or more related transactions, to any Person unless:

(i) Holdings is the surviving person or the Person formed by or surviving any such consolidation, amalgamation, merger, winding up or conversion (if other than Holdings) or to which such sale, assignment, transfer, lease, conveyance or other

disposition will have been made is a corporation, partnership or limited liability company organized or existing under the laws of the United States, any state thereof, the District of Columbia, or any territory thereof (Holdings or such Person, as the case may be, being herein called the “Successor Holdco”); provided that in the case where the surviving Person is not a corporation, a co-obligor of the Notes is a corporation;

(ii) the Successor Holdco (if other than Holdings) expressly assumes all the obligations of Holdings under this Indenture pursuant to supplemental indentures;

(iii) immediately after giving effect to such transaction (and treating any Indebtedness which becomes an obligation of the Successor Holdco, or any Restricted Subsidiary as a result of such transaction as having been Incurred by the Successor Holdco, or such Issuer or such Restricted Subsidiary at the time of such transaction) no Default shall have occurred and be continuing;

(iv) immediately after giving pro forma effect to such transaction, as if such transaction had occurred at the beginning of the applicable four-quarter period (and treating any Indebtedness which becomes an obligation of the Successor Holdco, or any Restricted Subsidiary as a result of such transaction as having been Incurred by the Successor Holdco, or such Restricted Subsidiary at the time of such transaction), either

(1) the Successor Holdco would be permitted to Incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.03(a); or

(2) the Fixed Charge Coverage Ratio for the Successor Holdco and its Restricted Subsidiaries would be no less than such ratio for Holdings and its Restricted Subsidiaries immediately prior to such transaction;

(v) if Holdings is not the Successor Holdco, each Subsidiary Guarantor, unless it is the other party to the transactions described above, shall have by supplemental indenture confirmed that its Subsidiary Guarantee shall apply to such Person’s obligations under this Indenture and the Notes; and

(vi) the Successor Holdco shall have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that such consolidation, merger, amalgamation or transfer and such supplemental indentures (if any) comply with this Indenture.

The Successor Holdco (if other than Holdings) will succeed to, and be substituted for, Holdings under this Indenture and the Notes, and in such event Holdings will automatically be released and discharged from its obligations under this Indenture and the Notes. Notwithstanding the foregoing clauses (iii) and (iv) of this Section 5.01, (a) Holdings or any Restricted Subsidiary may merge, consolidate or amalgamate with or transfer all or part of its properties and assets to Holdings or to a Restricted Subsidiary, and (b) Holdings may merge, consolidate or amalgamate with an Affiliate incorporated solely for the purpose of reincorporating Holdings in another state of the United States, the District of Columbia or any territory of the United States or may convert into a corporation, partnership or limited liability

company, so long as the amount of Indebtedness of Holdings and the Restricted Subsidiaries is not increased thereby. This Article V will not apply to a sale, assignment, transfer, conveyance or other disposition of assets between or among Holdings and the Restricted Subsidiaries.

(b) Subject to the provisions of Section 12.02(b)(i), no Subsidiary Guarantor shall, and Holdings shall not permit any Subsidiary Guarantor to, consolidate, amalgamate or merge with or into or wind up into (whether or not such Subsidiary Guarantor is the surviving Person), or sell, assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or assets in one or more related transactions to, any Person unless:

(i) either (A) such Subsidiary Guarantor is the surviving Person or the Person formed by or surviving any such consolidation, amalgamation or merger (if other than such Subsidiary Guarantor) or to which such sale, assignment, transfer, lease, conveyance or other disposition shall have been made is a company, corporation, partnership or limited liability company (in the case of such Subsidiary Guarantor) or similar entity organized or existing under the laws of the United States, any state thereof, the District of Columbia, or any territory thereof (such Subsidiary Guarantor or such Person, as the case may be, being herein called the “Successor Subsidiary Guarantor”) and the Successor Subsidiary Guarantor (if other than such Subsidiary Guarantor) expressly assumes all the obligations of such Subsidiary Guarantor under this Indenture and the Notes or the Subsidiary Guarantee, as applicable, pursuant to a supplemental indenture, or (B) such sale or disposition or consolidation, amalgamation or merger is not in violation of Section 4.06; and

(ii) the Successor Subsidiary Guarantor (if other than such Subsidiary Guarantor) shall have delivered or caused to be delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that such consolidation, amalgamation, merger or transfer and such supplemental indenture (if any) comply with this Indenture.

Except as otherwise provided in this Indenture, the Successor Subsidiary Guarantor (if other than such Subsidiary Guarantor) will succeed to, and be substituted for, such Subsidiary Guarantor under this Indenture and the Notes or the Subsidiary Guarantee, as applicable, and such Subsidiary Guarantor will automatically be released and discharged from its obligations under this Indenture and its Subsidiary Guarantee. Notwithstanding the foregoing, (1) a Subsidiary Guarantor may merge, amalgamate or consolidate with an Affiliate incorporated solely for the purpose of reincorporating such Subsidiary Guarantor in another state of the United States, the District of Columbia or any territory of the United States or may convert into a limited liability company, corporation, partnership or similar entity organized or existing under the laws of another state of the United States, the District of Columbia or any territory of the United States so long as the amount of Indebtedness of such Subsidiary Guarantor is not increased thereby and (2) a Subsidiary Guarantor may merge, amalgamate or consolidate with Holdings or another Subsidiary Guarantor.

In addition, notwithstanding the foregoing, a Subsidiary Guarantor may consolidate, amalgamate or merge with or into or wind up into, liquidate, dissolve, or sell,

assign, transfer, lease, convey or otherwise dispose of all or substantially all of its properties or assets (collectively, a “Transfer”) to Holdings or any Subsidiary Guarantor.

ARTICLE VI

DEFAULTS AND REMEDIES

SECTION 6.01 Events of Default. An “Event of Default” occurs with respect to Notes if:

(a) there is a default in any payment of interest on any Note when the same becomes due and payable, and such default continues for a period of 30 days,

(b) there is a default in the payment of principal or premium, if any, of any Note when due at its Stated Maturity, upon optional or mandatory redemption, upon required repurchase, upon declaration or otherwise,

(c) there is a failure by Holdings for 180 days after receipt of written notice given by the Trustee or the holders of not less than 30% in aggregate principal amount of the Notes then outstanding (with a copy to the Trustee) to comply with any of its obligations, covenants or agreements in Section 4.02,

(d) there is a failure by Holdings or any Restricted Subsidiary for 60 days after written notice given by the Trustee or the holders of not less than 30% in principal amount of the Notes then outstanding (with a copy to the Trustee) to comply with its other obligations, covenants or agreements (other than a default referred to in clauses (a), (b) and (c) above) contained in the Notes or this Indenture,

(e) there is a failure by Holdings or any Significant Subsidiary (or any group of Subsidiaries that together would constitute a Significant Subsidiary) to pay any Indebtedness (other than Indebtedness owing to Holdings or a Restricted Subsidiary) within any applicable grace period after final maturity or the acceleration of any such Indebtedness by the holders thereof because of a default, in each case, if the total amount of such Indebtedness unpaid or accelerated exceeds $75.0 million or its foreign currency equivalent,

(f) Holdings or any Significant Subsidiary (or any group of Subsidiaries that together would constitute a Significant Subsidiary) pursuant to or within the meaning of any Bankruptcy Law:

(i) commences a voluntary case;

(ii) consents to the entry of an order for relief against it in an involuntary case;

(iii) consents to the appointment of a Custodian of it or for any substantial part of its property; or

(iv) makes a general assignment for the benefit of its creditors or takes any comparable action under any foreign laws relating to insolvency,

(g) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:

(i) is for relief against Holdings or any Significant Subsidiary in an involuntary case;

(ii) appoints a Custodian of Holdings or any Significant Subsidiary or for any substantial part of its property; or

(iii) orders the winding up or liquidation of Holdings or any Significant Subsidiary;

or any similar relief is granted under any foreign laws and the order or decree remains unstayed and in effect for 60 days,

(h) there is a failure by Holdings or any Significant Subsidiary (or any group of Subsidiaries that together would constitute a Significant Subsidiary) to pay final judgments aggregating in excess of $75.0 million or its foreign currency equivalent (net of any amounts which are covered by enforceable insurance policies issued by solvent carriers), which judgments are not discharged, waived or stayed for a period of 60 days, or

(i) the Subsidiary Guarantee of a Significant Subsidiary (or any group of Subsidiaries that together would constitute a Significant Subsidiary) with respect to the Notes ceases to be in full force and effect (except as contemplated by the terms thereof) or an Issuer or any Subsidiary Guarantor that qualifies as a Significant Subsidiary (or any group of Subsidiaries that together would constitute a Significant Subsidiary) denies or disaffirms its obligations under this Indenture or any Subsidiary Guarantee with respect to the Notes and such Default continues for 10 days.

The foregoing shall constitute Events of Default whatever the reason for any such Event of Default and whether it is voluntary or involuntary or is effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body.

However, a default under clause (c) or (d) above shall not constitute an Event of Default until the Trustee or the holders of 30% in principal amount of outstanding Notes notify the Issuers of the default and the Issuers do not cure such default within the time specified in clauses (c) or (d) hereof after receipt of such notice. Such notice must specify the Default, demand that it be remedied and state that such notice is a “Notice of Default.” Holdings shall deliver to the Trustee, within five Business Days after the occurrence thereof, written notice in the form of an Officers’ Certificate of any event which is, or with the giving of notice or the lapse of time or both would become, an Event of Default, its status and what action the Issuers are taking or propose to take with respect thereto.

The term “Bankruptcy Law” means Xxxxx 00, Xxxxxx Xxxxxx Code, or any similar Federal or state law for the relief of debtors. The term “Custodian” means any receiver, trustee, assignee, liquidator, custodian or similar official under any Bankruptcy Law.

SECTION 6.02 Acceleration. If an Event of Default (other than an Event of Default specified in Section 6.01(f) or (g) hereof with respect to Holdings) occurs with respect to the Notes and is continuing, the Trustee or the holders of at least 30% in principal amount of outstanding Notes (with a copy to the Trustee) by notice to the Issuers may declare the principal of, premium, if any, and accrued but unpaid interest on all the Notes to be due and payable. Upon such a declaration, such principal and interest shall be due and payable immediately. If an Event of Default specified in Section 6.01(f) or (g) with respect to Holdings occurs, the principal of, premium, if any, and interest on all the Notes will become immediately due and payable without any declaration or other act on the part of the Trustee or any holders. Under certain circumstances, the holders of a majority in principal amount of outstanding Notes may rescind any such acceleration with respect to the Notes and its consequences.

In the event of any Event of Default specified in Section 6.01(e), such Event of Default and all consequences thereof (excluding, however, any resulting payment default) shall be annulled, waived and rescinded, automatically and without any action by the Trustee or the holders of the Notes, if within 20 days after such Event of Default arose Holdings delivers an Officers’ Certificate to the Trustee stating that (x) the Indebtedness or guarantee that is the basis for such Event of Default has been discharged or (y) the holders thereof have rescinded or waived the acceleration, notice or action (as the case may be) giving rise to such Event of Default or (z) the default that is the basis for such Event of Default has been cured, it being understood that in no event shall an acceleration of the principal amount of the Notes as described above be annulled, waived or rescinded upon the happening of any such events.

SECTION 6.03 Other Remedies. If an Event of Default occurs and is continuing, the Trustee may pursue any available remedy at law or in equity to collect the payment of principal of or interest on the Notes or to enforce the performance of any provision of the Notes, this Indenture.

The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any holder in exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. No remedy is exclusive of any other remedy. To the extent required by law, all available remedies are cumulative.

SECTION 6.04 Waiver of Past Defaults. Provided the Notes are not then due and payable by reason of a declaration of acceleration, the holders of a majority in principal amount of the Notes by written notice to the Trustee may waive an existing Default and its consequences except (a) a Default in the payment of the principal of or interest on a Note, (b) a Default arising from the failure to redeem or purchase any Note when required pursuant to the terms of this Indenture or (c) a Default in respect of a provision that under Section 9.02 cannot be amended without the consent of each holder affected. When a Default is waived, it is deemed cured and the Issuers, the Trustee and the holders will be restored to their former positions and rights under this Indenture, but no such waiver shall extend to any subsequent or other Default or impair any consequent right.

SECTION 6.05 Control by Majority. The holders of a majority in principal amount of Notes may direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power conferred on the Trustee. However, the Trustee may refuse to follow any direction that conflicts with law or this Indenture or, if the Trustee, being advised by counsel, determines that the action or proceeding so directed may not lawfully be taken or if the Trustee in good faith shall determine that the action or proceeding so directed would involve the Trustee in personal liability or expense for which it is not adequately indemnified, or subject to Section 7.01, that the Trustee determines is unduly prejudicial to the rights of any other holder or that would involve the Trustee in personal liability. Prior to taking any action under this Indenture, the Trustee shall be entitled to indemnification satisfactory to it against all losses and expenses caused by taking or not taking such action.

SECTION 6.06 Limitation on Suits.

(a) No holder may pursue any remedy with respect to this Indenture unless:

(i) such holder has previously given the Trustee written notice that an Event of Default is continuing,

(ii) holders of at least 30% in principal amount of the outstanding Notes have requested the Trustee to pursue the remedy,

(iii) such holders have offered the Trustee security or indemnity satisfactory to it against any loss, liability or expense,

(iv) the Trustee has not complied with such request within 60 days after the receipt of the request and the offer of security or indemnity, and

(v) the holders of a majority in principal amount of the outstanding Notes have not given the Trustee a direction inconsistent with such request within such 60-day period.

(b) A holder may not use this Indenture to prejudice the rights of another holder or to obtain a preference or priority over another holder.

SECTION 6.07 Rights of the Holders to Receive Payment. Notwithstanding any other provision of this Indenture, the right of any holder to receive payment of principal of and interest on the Notes held by such holder, on or after the respective due dates expressed or provided for in the Notes, or to bring suit for the enforcement of any such payment on or after such respective dates, shall not be impaired or affected without the consent of such holder.

SECTION 6.08 Collection Suit by Trustee. If an Event of Default specified in Section 6.01(a) or (b) occurs and is continuing, the Trustee may recover judgment in its own name and as trustee of an express trust against the Issuers or any other obligor on the Notes for the whole amount then due and owing (together with interest on overdue principal and (to the

extent lawful) on any unpaid interest at the rate provided for in the Notes) and the amounts provided for in Section 7.07.

SECTION 6.09 Trustee May File Proofs of Claim. The Trustee may file such proofs of claim, statements of interest and other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for reasonable compensation, expenses disbursements and advances of the Trustee (including counsel, accountants, experts or such other professionals as the Trustee deems necessary, advisable or appropriate)) and the holders allowed in any judicial proceedings relative to the Issuers, the Guarantors, their creditors or their property, shall be entitled to participate as a member, voting or otherwise, of any official committee of creditors appointed in such matters and, unless prohibited by law or applicable regulations, may vote on behalf of the holders in any election of a trustee in bankruptcy or other Person performing similar functions, and any Custodian in any such judicial proceeding is hereby authorized by each holder to make payments to the Trustee and, in the event that the Trustee shall consent to the making of such payments directly to the holders, to pay to the Trustee any amount due it for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and its counsel, and any other amounts due the Trustee under Section 7.07. Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any holder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any holder, or to authorize the Trustee to vote in respect of the claim of any holder in any such proceeding.

SECTION 6.10 Priorities. Any money or property collected by the Trustee pursuant to this Article VI and any other money or property distributable in respect of the Issuers’ or any Guarantor’s obligations under this Indenture after an Event of Default shall be applied in the following order:

FIRST: to the Trustee for amounts due hereunder;

SECOND: to the holders for amounts due and unpaid on the Notes for principal, premium, if any, and interest, ratably, without preference or priority of any kind, according to the amounts due and payable on the Notes for principal and interest, respectively; and

THIRD: to the Issuers or, to the extent the Trustee collects any amount for any Guarantor, to such Guarantor.

The Trustee may fix a record date and payment date for any payment to the holders pursuant to this Section 6.10. At least 15 days before such record date, the Trustee shall mail to each holder and the Issuers a notice that states the record date, the payment date and the amount to be paid.

SECTION 6.11 Undertaking for Costs. In any suit for the enforcement of any right or remedy under this Indenture or in any suit against the Trustee for any action taken or omitted by it as Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess

reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by the party litigant. This Article VI does not apply to a suit by the Trustee, a suit by a holder pursuant to Section 6.07 or a suit by holders of more than 10% in principal amount of the Notes.

SECTION 6.12 Waiver of Stay or Extension Laws. Neither the Issuers nor any Guarantor (to the extent it may lawfully do so) shall at any time insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Indenture; and the Issuers and the Guarantors (to the extent that they may lawfully do so) hereby expressly waive all benefit or advantage of any such law, and shall not hinder, delay or impede the execution of any power herein granted to the Trustee, but shall suffer and permit the execution of every such power as though no such law had been enacted.

ARTICLE VII

TRUSTEE

SECTION 7.01 Duties of Trustee.

(a) The Trustee, prior to the occurrence of an Event of Default with respect to the Notes and after the curing or waiving of all Events of Default which may have occurred, undertakes to perform such duties and only such duties as are specifically set forth in this Indenture. If an Event of Default has occurred and is continuing, the Trustee shall exercise the rights and powers vested in it by this Indenture and use the same degree of care and skill in their exercise as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs.

(b) Except during the continuance of an Event of Default:

(i) the Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Indenture and no implied covenants or obligations shall be read into this Indenture against the Trustee (it being agreed that the permissive right of the Trustee to do things enumerated in this Indenture shall not be construed as a duty); and

(ii) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. The Trustee shall be under no duty to make any investigation as to any statement contained in any such instance, but may accept the same as conclusive evidence of the truth and accuracy of such statement or the correctness of such opinions. However, in the case of certificates or opinions required by any provision hereof to be provided to it, the Trustee shall examine the certificates and opinions to determine whether or not they conform to the requirements of this Indenture (but need not confirm or investigate the accuracy of mathematical calculations or other facts stated therein).

(c) The Trustee may not be relieved from liability for its own negligent action, its own negligent failure to act or its own willful misconduct, except that:

(i) this paragraph does not limit the effect of paragraph (b) of this Section;

(ii) the Trustee shall not be liable for any error of judgment made in good faith by a Trust Officer unless it is proved that the Trustee was negligent in ascertaining the pertinent facts;

(iii) the Trustee shall not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 6.05; and

(iv) no provision of this Indenture shall require the Trustee to expend or risk its own funds or otherwise Incur financial liability in the performance of any of its duties hereunder or in the exercise of any of its rights or powers.

(d) Every provision of this Indenture that in any way relates to the Trustee is subject to paragraphs (a), (b) and (c) of this Section 7.01.

(e) The Trustee shall not be liable for interest on any money received by it except as the Trustee may agree in writing with the Issuer.

(f) Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.

(g) Every provision of this Indenture relating to the conduct or affecting the liability of or affording protection to the Trustee shall be subject to the provisions of this Section 7.01(c) and the TIA.

SECTION 7.02 Rights of Trustee.

(a) The Trustee may conclusively rely on any document believed by it to be genuine and to have been signed or presented by the proper person. The Trustee need not investigate any fact or matter stated in the document.

(b) Before the Trustee acts or refrains from acting, it may require an Officers’ Certificate or an Opinion of Counsel or both. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on the Officers’ Certificate or Opinion of Counsel.

(c) The Trustee may act through agents and shall not be responsible for the misconduct or negligence of any agent appointed with due care.

(d) The Trustee shall not be responsible or liable for any action it takes or omits to take in good faith which it believes to be authorized or within its rights or powers.

(e) The Trustee may consult with counsel of its own selection and the advice or opinion of counsel with respect to legal matters relating to this Indenture and the Notes shall

be full and complete authorization and protection from liability in respect of any action taken, omitted or suffered by it hereunder in good faith and in accordance with the advice or opinion of such counsel.

(f) The Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, consent, order, approval, bond, debenture, note or other paper or document unless requested in writing to do so by the holders of not less than a majority in principal amount of the Notes at the time outstanding, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters as it may see fit, and, if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Issuers, personally or by agent or attorney, at the expense of the Issuers and shall Incur no liability of any kind by reason of such inquiry or investigation.

(g) The Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the holders pursuant to this Indenture, unless such holders shall have offered to the Trustee security or indemnity satisfactory to the Trustee against the costs, expenses and liabilities which might be Incurred by it in compliance with such request or direction.

(h) The rights, privileges, protections, immunities and benefits given to the Trustee, including its right to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed to act hereunder.

(i) The Trustee shall not be responsible or liable for any action taken or omitted by it in good faith at the direction of the holders of not less than a majority in principal amount of the Notes as to the time, method and place of conducting any proceedings for any remedy available to the Trustee or the exercising of any power conferred by this Indenture.

(j) Any action taken, or omitted to be taken, by the Trustee in good faith pursuant to this Indenture upon the request or authority or consent of any person who, at the time of making such request or giving such authority or consent, is the holder of any Note shall be conclusive and binding upon future holders of Notes and upon Notes executed and delivered in exchange therefor or in place thereof.

(k) The Trustee shall not be deemed to have notice of any Default or Event of Default unless a Trust Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is in fact such a Default is received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references the Notes and this Indenture.

(l) The Trustee may request that the Issuers deliver an Officers’ Certificate setting forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture, which Officers’ Certificate may be signed by any Person authorized to sign an Officers’ Certificate, including any Person specified as so authorized in any such certificate previously delivered and not superseded.

(m) The Trustee shall not be responsible or liable for punitive, special, indirect, or consequential loss or damage of any kind whatsoever (including, but not limited to, loss of profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of actions.

(n) The Trustee shall not be required to give any bond or surety in respect of the execution of the trusts and powers under this Indenture.

(o) The Trustee shall not be responsible or liable for any failure or delay in the performance of its obligations under this Indenture arising out of or caused, directly or indirectly, by circumstances beyond its reasonable control, including, without limitation, acts of God; earthquakes; fire; flood; terrorism; wars and other military disturbances; sabotage; epidemics; riots; interruptions; loss or malfunction of utilities, computer (hardware or software) or communication services; accidents; labor disputes; and acts of civil or military authorities and governmental action.

SECTION 7.03 Individual Rights of Trustee. The Trustee in its individual or any other capacity may become the owner or pledgee of Notes and may otherwise deal with the Issuers or their Affiliates with the same rights it would have if it were not Trustee. Any Paying Agent or Registrar may do the same with like rights. However, the Trustee must comply with Section 7.10 and 7.11.

SECTION 7.04 Trustee’s Disclaimer. The Trustee shall not be responsible for and makes no representation as to the validity or adequacy of this Indenture, the Guarantees or the Notes, it shall not be accountable for the Issuers’ use of the proceeds from the Notes, and it shall not be responsible for any statement of the Issuers or any Guarantor in this Indenture or in any document issued in connection with the sale of the Notes or in the Notes other than the Trustee’s certificate of authentication. The Trustee shall not be charged with knowledge of any Default or Event of Default under Sections 6.01(c), (d), (e), (f), (g), (h) or (i) or of the identity of any Significant Subsidiary unless either (a) a Trust Officer shall have actual knowledge thereof or (b) the Trustee shall have received written notice thereof in accordance with Section 14.02 hereof from the Issuers, any Guarantor or any holder. In accepting the trust hereby created, the Trustee acts solely as Trustee under this Indenture and not in its individual capacity and all persons, including without limitation the holders of Notes and the Issuers having any claim against the Trustee arising from this Indenture shall look only to the funds and accounts held by the Trustee hereunder for payment except as otherwise provided herein.

SECTION 7.05 Notice of Defaults. If a Default occurs and is continuing and is actually known to a Trust Officer or the Trustee, the Trustee shall mail to each holder of the Notes notice of the Default within the earlier of 90 days after it occurs or 30 days after it is actually known to a Trust Officer or written notice if it is received by the Trustee. Except in the case of a Default in the payment of principal of, premium (if any) or interest on any Note, the Trustee may withhold notice if and so long as a committee of its Trust Officers in good faith determines that withholding notice is in the interests of the noteholders. Holdings is required to deliver to the Trustee, annually, a certificate indicating whether the signers thereof know of any Default that occurred during the previous year. Holdings also is required to deliver to the Trustee, within 30 days after the occurrence thereof, written notice of any event which would

constitute certain Defaults, their status and what action Holdings is taking or proposes to take in respect thereof.

SECTION 7.06 Reports by Trustee to the Holders. As promptly as practicable after each November 1 beginning with the November 1 following the date of this Indenture, and in any event prior to December 1 in each year, the Trustee shall mail to each holder a brief report dated as of such November 1 that complies with Section 313(a) of the TIA if and to the extent required thereby. The Trustee shall also comply with Section 313(b) of the TIA.

Pursuant to Section 313(d) of the TIA, a copy of each report at the time of its mailing to the holders shall be filed with the SEC and each stock exchange (if any) on which the Notes are listed if the Notes are listed. Holdings agrees to notify promptly the Trustee whenever the Notes become listed on any stock exchange and of any delisting thereof. All reports pursuant to this Section 7.06 shall be provided in accordance with Section 313(c) of the TIA.

SECTION 7.07 Compensation and Indemnity. The Issuers shall pay to the Trustee from time to time compensation for the Trustee’s acceptance of this Indenture and its services hereunder. The Trustee’s compensation shall not be limited by any law on compensation of a trustee of an express trust. The Issuers shall reimburse the Trustee upon request for all reasonable out-of-pocket expenses Incurred or made by it, including costs of collection, in addition to the compensation for its services. Such expenses shall include the reasonable compensation and expenses, disbursements and advances of the Trustee’s agents, counsel, accountants and experts. The Issuers and the Guarantors, jointly and severally, shall indemnify the Trustee or any predecessor Trustee and their directors, officers, employees and agents against any and all loss, liability, claim, damage or expense (including reasonable attorneys’ fees and expenses and including taxes (other than taxes based upon, measured by or determined by the income of the Trustee) Incurred by or in connection with the acceptance or administration of this trust and the performance of its duties hereunder, including the costs and expenses of enforcing this Indenture or Guarantee against any Issuer or any Guarantor (including this Section 7.07) and defending itself against or investigating any claim (whether asserted by any Issuer, any Guarantor, any holder or any other Person). The obligation to pay such amounts shall survive the payment in full or defeasance of the Notes or the removal or resignation of the Trustee. The Trustee shall notify the Issuers of any claim for which it may seek indemnity promptly upon obtaining actual knowledge thereof; provided, however, that any failure so to notify the Issuers shall not relieve any Issuer or any Guarantor of its indemnity obligations hereunder. The Issuers shall defend the claim and the indemnified party shall provide reasonable cooperation at the Issuers’ expense in the defense. Such indemnified parties may have separate counsel and the Issuers and such Guarantor, as applicable, shall pay the fees and expenses of such counsel; provided, however, that the Issuers shall not be required to pay such fees and expenses if it assumes such indemnified parties’ defense and, in such indemnified parties’ reasonable judgment, there is no actual or potential conflict of interest between the Issuers and the Guarantor, as applicable, and such parties in connection with such defense. The Issuers need not reimburse any expense or indemnify against any loss, liability or expense Incurred by an indemnified party through such party’s own willful misconduct, negligence or bad faith.

To secure the Issuers’ and the Guarantors’ payment obligations in this Section 7.07, the Trustee shall have a Lien prior to the Notes on all money or property held or collected by the Trustee other than money or property held in trust to pay principal of and interest on particular Notes.

The Issuers’ and the Guarantors’ payment obligations pursuant to this Section 7.07 shall survive the satisfaction or discharge of this Indenture, any rejection or termination of this Indenture under any Bankruptcy Law or the resignation or removal of the Trustee. Without prejudice to any other rights available to the Trustee under applicable law, when the Trustee Incurs expenses after the occurrence of a Default specified in Section 6.01(f) or (g) with respect to the Issuers, the expenses are intended to constitute expenses of administration under the Bankruptcy Law.

No provision of this Indenture shall require the Trustee to expend or risk its own funds or otherwise Incur any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers, if repayment of such funds or adequate indemnity against such risk or liability is not assured to its satisfaction.

SECTION 7.08 Replacement of Trustee.

(a) The Trustee may resign at any time by so notifying the Issuer. The holders of a majority in principal amount of the Notes may remove the Trustee by so notifying the Trustee and may appoint a successor Trustee. The Issuers shall remove the Trustee if:

(i) the Trustee fails to comply with Section 7.10;

(ii) the Trustee is adjudged bankrupt or insolvent;

(iii) a receiver or other public officer takes charge of the Trustee or its property; or

(iv) the Trustee otherwise becomes incapable of acting.

(b) If the Trustee resigns, is removed by the Issuers or by the holders of a majority in principal amount of the Notes and such holders do not reasonably promptly appoint a successor Trustee, or if a vacancy exists in the office of Trustee for any reason (the Trustee in such event being referred to herein as the retiring Trustee), the Issuers shall promptly appoint a successor Trustee.

(c) A successor Trustee shall deliver a written acceptance of its appointment to the retiring Trustee and to the Issuers. Thereupon the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights, powers and duties of the Trustee under this Indenture. The successor Trustee shall mail a notice of its succession to the holders. The retiring Trustee shall promptly transfer all property held by it as Trustee to the successor Trustee, subject to the Lien provided for in Section 7.07.

(d) If a successor Trustee does not take office within 60 days after the retiring Trustee resigns or is removed, the retiring Trustee or the holders of 10% in principal amount of

the Notes may petition at the expense of the Issuers any court of competent jurisdiction for the appointment of a successor Trustee.

(e) If the Trustee fails to comply with Section 7.10, unless the Trustee’s duty to resign is stayed as provided in Section 310(b) of the TIA, any holder who has been a bona fide holder of a Note for at least six months may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

(f) Notwithstanding the replacement of the Trustee pursuant to this Section, the Issuer’s obligations under Section 7.07 shall continue for the benefit of the retiring Trustee.

SECTION 7.09 Successor Trustee by Merger. If the Trustee consolidates with, merges or converts into, or transfers all or substantially all its corporate trust business or assets to, another corporation or banking association, the resulting, surviving or transferee corporation or banking association without any further act shall be the successor Trustee.

In case at the time such successor or successors by merger, conversion or consolidation to the Trustee shall succeed to the trusts created by this Indenture any of the Notes shall have been authenticated but not delivered, any such successor to the Trustee may adopt the certificate of authentication of any predecessor trustee, and deliver such Notes so authenticated; and in case at that time any of the Notes shall not have been authenticated, any successor to the Trustee may authenticate such Notes either in the name of any predecessor hereunder or in the name of the successor to the Trustee; and in all such cases such certificates shall have the full force which it is anywhere in the Notes or in this Indenture provided that the certificate of the Trustee shall have.

SECTION 7.10 Eligibility; Disqualification. The Trustee shall at all times satisfy the requirements of Section 310(a) of the TIA. The Trustee shall have a combined capital and surplus of at least $100 million as set forth in its most recent published annual report of condition. The Trustee shall comply with Section 310(b) of the TIA, subject to its right to apply for a stay of its duty to resign under the penultimate paragraph of Section 310(b) of the TIA; provided, however, that there shall be excluded from the operation of Section 310(b)(1) of the TIA any series of securities issued under this Indenture and any indenture or indentures under which other securities or certificates of interest or participation in other securities of the Issuers are outstanding if the requirements for such exclusion set forth in Section 310(b)(1) of the TIA are met.

SECTION 7.11 Preferential Collection of Claims Against the Issuers. The Trustee shall comply with Section 311(a) of the TIA, excluding any creditor relationship listed in Section 311(b) of the TIA. A Trustee who has resigned or been removed shall be subject to Section 311(a) of the TIA to the extent indicated.

ARTICLE VIII

DISCHARGE OF INDENTURE; DEFEASANCE

SECTION 8.01 Discharge of Liability on Notes; Defeasance.

(a) This Indenture shall be discharged and shall cease to be of further effect (except as to surviving rights and immunities of the Trustee and rights of registration or of transfer or exchange of Notes, as expressly provided for in this Indenture) as to all outstanding Notes when:

(i) either (A) all the Notes theretofore authenticated and delivered (except lost, stolen or destroyed Notes which have been replaced or paid and Notes for whose payment money has theretofore been deposited in trust or segregated and held in trust by the Issuers and thereafter repaid to the Issuers or discharged from such trust) have been delivered to the Trustee for cancellation or (B) all of the Notes (1) have become due and payable, (2) will become due and payable at their stated maturity within one year or (3) if redeemable at the option of the Issuers, are to be called for redemption within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Issuers, and the Issuers have irrevocably deposited or caused to be deposited with the Trustee funds in an amount sufficient to pay and discharge the entire Indebtedness on the Notes not theretofore delivered to the Trustee for cancellation, for principal of, premium, if any, and interest on the Notes to the date of deposit together with irrevocable instructions from the Issuers directing the Trustee to apply such funds to the payment thereof at maturity or redemption, as the case may be; provided that if such redemption is made as provided in the second paragraph of Paragraph 5 of the Note (x) the amount of cash in U.S. dollars, non-callable Cash Equivalents, or a combination thereof, that must be irrevocably deposited will be determined using an assumed Applicable Premium calculated as of the date of such deposit and (y) the depositor must irrevocably deposit or cause to be deposited additional money in trust on the redemption date as necessary to pay the Applicable Premium as determined by such date;

(ii) the Issuers and/or the Guarantors have paid all other sums payable under this Indenture; and

(iii) the Issuers have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel stating that all conditions precedent under this Indenture relating to the satisfaction and discharge of this Indenture have been complied with.

(b) Subject to Sections 8.01(c) and 8.02, the Issuers at any time may terminate (i) all of their obligations under the Notes and this Indenture with respect to the holders of the Notes (“legal defeasance option”), and (ii) their obligations under Sections 4.02, 4.03, 4.04, 4.05, 4.06, 4.07, 4.08, 4.09, 4.11, 4.12 and 4.15 and the operation of Section 5.01 for the benefit of the holders of the Notes, and Sections 6.01(c), 6.01(d), 6.01(e), 6.01(f), 6.01(g) (in the case of Sections 6.01(f) and 6.01(g) with respect to Significant Subsidiaries of the Issuers only), 6.01(h) and 6.01(i) (“covenant defeasance option”). The Issuers may exercise their legal defeasance

option notwithstanding their prior exercise of their covenant defeasance option. In the event that the Issuers terminate all of their obligations under the Notes and this Indenture (with respect to such Notes) by exercising their legal defeasance option or their covenant defeasance option, the obligations of each Guarantor with respect to its Guarantee shall be terminated simultaneously with the termination of such obligations.

If the Issuers exercises their legal defeasance option, payment of the Notes so defeased may not be accelerated because of an Event of Default. If the Issuers exercise their covenant defeasance option, payment of the Notes so defeased may not be accelerated because of an Event of Default specified in Sections 6.01(c), 6.01(d), 6.01(e), 6.01(f), 6.01(g) (with respect to Significant Subsidiaries of Holdings only), 6.01(h) and 6.01(i) or because of the failure of Holdings to comply with Section 5.01.

Upon satisfaction of the conditions set forth herein and upon request of the Issuers, the Trustee shall acknowledge in writing the discharge of those obligations that the Issuers terminate.

(c) Notwithstanding clauses (a) and (b) above, the Issuers’ obligations in Sections 2.04, 2.05, 2.06, 2.07, 2.08 and 2.09 and Article VII, including, without limitation, Sections 7.07, 7.08 and 7.09, and in this Article VIII and the rights and immunities of the Trustee under this Indenture shall survive until the Notes have been paid in full. Thereafter, the Issuers’ obligations in Sections 7.07, 7.08, 8.05 and 8.06 and the rights and immunities of the Trustee under this Indenture shall survive such satisfaction and discharge.

SECTION 8.02 Conditions to Defeasance.

(a) The Issuers may exercise their legal defeasance option or their covenant defeasance option only if:

(i) the Issuers irrevocably deposit in trust with the Trustee cash in U.S. Dollars, U.S. Government Obligations or a combination thereof sufficient, or a combination thereof sufficient, to pay the principal of and premium (if any) and interest on the Notes when due at maturity or redemption, as the case may be; provided that if such redemption is made as provided in the second paragraph of Paragraph 5 of the Note (x) the amount of cash in U.S. dollars, non-callable Cash Equivalents, or a combination thereof, that must be irrevocably deposited will be determined using an assumed Applicable Premium calculated as of the date of such deposit and (y) the depositor must irrevocably deposit or cause to be deposited additional money in trust on the redemption date as necessary to pay the Applicable Premium as determined by such date;

(ii) the Issuers deliver to the Trustee a certificate from a nationally recognized firm of independent accountants expressing their opinion that the payments of principal and interest when due and without reinvestment on the deposited U.S. Government Obligations plus any deposited money without investment will provide cash at such times and in such amounts as will be sufficient to pay principal, premium, if any, and interest when due on all the Notes to maturity or redemption, as the case may be;

100

(iii) no Default specified in Section 6.01(f) or (g) with respect to the Issuers shall have occurred or is continuing on the date of such deposit;

(iv) the deposit does not constitute a default under any other material agreement or instrument binding on the Issuers;

(v) in the case of the legal defeasance option, the Issuers shall have delivered to the Trustee an Opinion of Counsel stating that (1) the Issuers have received from, or there has been published by, the Internal Revenue Service a ruling, or (2) since the date of this Indenture there has been a change in the applicable U.S. federal income tax law, in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the holders will not recognize income, gain or loss for U.S. federal income tax purposes as a result of such deposit and defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such deposit and defeasance had not occurred. Notwithstanding the foregoing, the Opinion of Counsel required by the immediately preceding sentence with respect to a legal defeasance need not be delivered if all of the Notes not theretofore delivered to the Trustee for cancellation (x) have become due and payable or (y) will become due and payable at their Stated Maturity within one year under arrangements for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Issuer;

(vi) such exercise does not impair the right of any holder to receive payment of principal of, premium, if any, and interest on such holder’s Notes on or after the due dates therefore or to institute suit for the enforcement of any payment on or with respect to such holder’s Notes;

(vii) in the case of the covenant defeasance option, the Issuers shall have delivered to the Trustee an Opinion of Counsel to the effect that the holders will not recognize income, gain or loss for U.S. federal income tax purposes as a result of such deposit and defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such deposit and defeasance had not occurred; and

(viii) the Issuers deliver to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent to the defeasance and discharge of the Notes to be so defeased and discharged as contemplated by this Article VIII have been complied with.

(b) Before or after a deposit, the Issuers may make arrangements satisfactory to the Trustee for the redemption of such Notes at a future date in accordance with Article III.

SECTION 8.03 Application of Trust Money. The Trustee shall hold in trust money or U.S. Government Obligations (including proceeds thereof) deposited with it pursuant to this Article VIII. The Trustee shall apply the deposited money and the money from U.S. Government Obligations through each Paying Agent and in accordance with this Indenture to the payment of principal of and interest on the Notes so discharged or defeased.

101

SECTION 8.04 Repayment to Issuer. Each of the Trustee and each Paying Agent shall promptly turn over to the Issuers upon request any money or U.S. Government Obligations held by it as provided in this Article VIII that, in the written opinion of a nationally recognized firm of independent public accountants delivered to the Trustee (which delivery shall only be required if U.S. Government Obligations have been so deposited), are in excess of the amount thereof that would then be required to be deposited to effect an equivalent discharge or defeasance in accordance with this Article VIII.

Subject to any applicable abandoned property law, the Trustee and each Paying Agent shall pay to the Issuers upon written request any money held by them for the payment of principal or interest that remains unclaimed for two years, and, thereafter, holders entitled to the money must look to the Issuers for payment as general creditors, and the Trustee and each Paying Agent shall have no further liability with respect to such monies.

SECTION 8.05 Indemnity for U.S. Government Obligations. The Issuers shall pay and shall indemnify the Trustee against any tax, fee or other charge imposed on or assessed against deposited U.S. Government Obligations or the principal and interest received on such U.S. Government Obligations.

SECTION 8.06 Reinstatement. If the Trustee or any Paying Agent is unable to apply any money or U.S. Government Obligations in accordance with this Article VIII by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Issuers’ obligations under this Indenture and the Notes so discharged or defeased shall be revived and reinstated as though no deposit had occurred pursuant to this Article VIII until such time as the Trustee or any Paying Agent is permitted to apply all such money or U.S. Government Obligations in accordance with this Article VIII; provided, however, that, if the Issuers have made any payment of principal of, or interest on, any such Notes because of the reinstatement of its obligations, the Issuers shall be subrogated to the rights of the holders of such Notes to receive such payment from the money or U.S. Government Obligations held by the Trustee or any Paying Agent.

ARTICLE IX

AMENDMENTS AND WAIVERS

SECTION 9.01 Without Consent of the Holders.

(a) The Issuers and the Trustee may amend this Indenture, the Notes and the Guarantees without notice to or consent of any holder:

(i) to cure any ambiguity, omission, defect or inconsistency;

(ii) to provide for the assumption by a Successor (with respect to an Issuer) of the obligations of an Issuer under this Indenture and the Notes;

102

(iii) to provide for the assumption by a Successor Subsidiary Guarantor (with respect to any Subsidiary Guarantor), as the case may be, of the obligations of a Guarantor under this Indenture and its Guarantee;

(iv) to provide for uncertificated Notes in addition to or in place of certificated Notes, provided, however, that the uncertificated Notes are issued in registered form for purposes of Section 163(f) of the Code, or in a manner such that the uncertificated Notes are described in Section 163(f)(2)(B) of the Code;

(v) to conform the text of this Indenture, the Notes or the Guarantees to any provision of the “Description of Notes” in the Offering Memorandum to the extent that such provision in this Indenture, the Notes or the Guarantees was intended by the Issuers to be verbatim recitation of a provision in the “Description of Notes” in the Offering Memorandum;

(vi) to add a guarantee or other obligor with respect to the Notes,

(vii) [intentionally omitted];

(viii) to release a Guarantee as permitted by this Indenture;

(ix) [intentionally omitted];

(x) to add to the covenants of the Issuers for the benefit of the holders or to surrender any right or power herein conferred upon the Issuers;

(xi) to comply with any requirement of the SEC in connection with qualifying, or maintaining the qualification of, this Indenture under the TIA;

(xii) to make any change that does not adversely affect the rights of any holder; or

(xiii) to provide for the issuance of Additional Notes, which shall have terms substantially identical in all material respects to the Initial Notes, and which shall be treated, together with any outstanding Initial Notes, as a single issue of securities.

(b) [Intentionally Omitted].

(c) After an amendment under this Section 9.01 becomes effective, the Issuers shall mail, or otherwise deliver in accordance with the procedures of the Depositary, to the holders a notice briefly describing such amendment. The failure to give such notice to all holders, or any defect therein, shall not impair or affect the validity of an amendment under this Section 9.01.

SECTION 9.02 With Consent of the Holders. The Issuers and the Trustee may amend this Indenture, the Notes and the Guarantees with the consent of the Issuers and the holders of at least a majority in principal amount of the Notes then outstanding voting as a single class (including consents obtained in connection with a tender offer or exchange for the Notes).

103

However, without the consent of each holder of an outstanding Note affected, an amendment may not:

(1) reduce the amount of Notes whose holders must consent to an amendment,

(2) reduce the rate of or extend the time for payment of interest on any Note,

(3) reduce the principal of or change the Stated Maturity of any Note,

(4) reduce the premium payable upon the redemption of any Note or change the time at which any Note may be redeemed in accordance with Article III,

(5) make any Note payable in money other than that stated in such Note,

(6) expressly subordinate the Notes or any related Guarantee to any other Indebtedness of an Issuer or any Guarantor,

(7) impair the right of any holder to receive payment of principal of, premium, if any, and interest on such holder’s Notes on or after the due dates therefor or to institute suit for the enforcement of any payment on or with respect to such holder’s Notes, or

(8) make any change in the amendment provisions which require each holder’s consent or in the waiver provisions.

Except as expressly provided by this Indenture, without the consent of holders of at least 66.67% in aggregate principal amount of Notes then outstanding, no amendment may modify or release the Guarantee of any Significant Subsidiary or Athlon Energy in any manner adverse to the holders of the Notes.

It shall not be necessary for the consent of the holders under this Section 9.02 to approve the particular form of any proposed amendment, but it shall be sufficient if such consent approves the substance thereof.

After an amendment under this Section 9.02 becomes effective, the Issuers shall mail, or otherwise deliver in accordance with the procedures of the Depositary, to the holders a notice briefly describing such amendment. The failure to give such notice to all holders, or any defect therein, shall not impair or affect the validity of an amendment under this Section 9.02.

SECTION 9.03 Revocation and Effect of Consents and Waivers.

(a) A consent to an amendment or a waiver by a holder of a Note shall bind the holder and every subsequent holder of that Note or portion of the Note that evidences the same debt as the consenting holder’s Note, even if notation of the consent or waiver is not made on the Note. However, any such holder or subsequent holder may revoke the consent or waiver as to such holder’s Note or portion of the Note if the Trustee receives the notice of revocation before the date on which the Trustee receives an Officers’ Certificate from Holdings certifying that the requisite principal amount of Notes have consented. After an amendment or waiver becomes effective, it shall bind every holder. An amendment or waiver becomes effective upon

104

the (i) receipt by the Issuers or the Trustee of consents by the holders of the requisite principal amount of securities, (ii) satisfaction of conditions to effectiveness as set forth in this Indenture and any indenture supplemental hereto containing such amendment or waiver and (iii) execution of such amendment or waiver (or supplemental indenture) by the Issuers and the Trustee.

(b) The Issuers may, but shall not be obligated to, fix a record date for the purpose of determining the holders entitled to give their consent or take any other action described above or required or permitted to be taken pursuant to this Indenture. If a record date is fixed, then notwithstanding the immediately preceding paragraph, those Persons who were holders at such record date (or their duly designated proxies), and only those Persons, shall be entitled to give such consent or to revoke any consent previously given or to take any such action, whether or not such Persons continue to be holders after such record date. No such consent shall be valid or effective for more than 120 days after such record date.

SECTION 9.04 Notation on or Exchange of Notes. If an amendment, supplement or waiver changes the terms of a Note, the Issuers may require the holder of the Note to deliver it to the Trustee. The Trustee may place an appropriate notation on the Note regarding the changed terms and return it to the holder. Alternatively, if the Issuers or the Trustee so determine, the Issuers in exchange for the Note shall issue and, upon written order of each Issuer signed by an Officer, the Trustee shall authenticate a new Note that reflects the changed terms. Failure to make the appropriate notation or to issue a new Note shall not affect the validity of such amendment, supplement or waiver.

SECTION 9.05 Trustee to Sign Amendments. The Trustee shall sign any amendment, supplement or waiver authorized pursuant to this Article IX if the amendment does not adversely affect the rights, duties, liabilities or immunities of the Trustee. If it does, the Trustee may but need not sign it. In signing such amendment, the Trustee shall be entitled to receive indemnity satisfactory to it and shall be provided with, and (subject to Section 7.01) shall be fully protected in relying upon, (i) an Officers’ Certificate, (ii) an Opinion of Counsel stating that such amendment, supplement or waiver is authorized or permitted by this Indenture and that such amendment, supplement or waiver is the legal, valid and binding obligation of the Issuers and any Guarantors, enforceable against them in accordance with its terms, subject to customary exceptions, and complies with the provisions hereof, (iii) a copy of the resolution of the Board of Directors, certified by the Secretary or Assistant Secretary of Holdings, authorizing the execution of such amendment, supplement or waiver and (iv) if such amendment, supplement or waiver is executed pursuant to Section 9.02, evidence reasonably satisfactory to the Trustee of the consent of the holders required to consent thereto.

SECTION 9.06 Additional Voting Terms; Calculation of Principal Amount. All Notes issued under this Indenture shall vote and consent together on all matters (as to which any of such Notes may vote) as one class and no Notes will have the right to vote or consent as a separate class on any matter. Determinations as to whether holders of the requisite aggregate principal amount of Notes have concurred in any direction, waiver or consent shall be made in accordance with this Article IX and Section 2.13.

105

SECTION 9.07 Compliance with the Trust Indenture Act. From the date on which this Indenture is qualified under the TIA, every amendment, waiver or supplement to this Indenture or the Notes shall comply with the TIA as then in effect.

ARTICLE X

[INTENTIONALLY OMITTED]

ARTICLE XI

[INTENTIONALLY OMITTED]

ARTICLE XII

GUARANTEE

SECTION 12.01 Guarantee.

(a) Each Guarantor hereby jointly and severally, irrevocably and unconditionally guarantees, on a senior unsecured basis from the Issue Date, as a primary obligor and not merely as a surety, to each holder and to the Trustee and its successors and assigns (i) the performance and punctual payment when due, whether at Stated Maturity, by acceleration or otherwise, of all obligations of the Issuers under this Indenture and the Notes, whether for payment of principal of, premium, if any, or interest on the Notes and all other monetary obligations of the Issuers under this Indenture and the Notes and (ii) the full and punctual performance within applicable grace periods of all other obligations of the Issuers whether for fees, expenses, indemnification or otherwise under this Indenture and the Notes (all the foregoing being hereinafter collectively called the “Guaranteed Obligations”). Each Guarantor further agrees that the Guaranteed Obligations may be extended or renewed, in whole or in part, without notice or further assent from any Guarantor, and that each Guarantor shall remain bound under this Article XII notwithstanding any extension or renewal of any Guaranteed Obligation.

(b) Each Guarantor waives presentation to, demand of payment from and protest to the Issuers of any of the Guaranteed Obligations and also waives notice of protest for nonpayment. Each Guarantor waives notice of any default under the Notes or the Guaranteed Obligations. The obligations of each Guarantor hereunder shall not be affected by (i) the failure of any holder or the Trustee to assert any claim or demand or to enforce any right or remedy against the Issuers or any other Person under this Indenture, the Notes or any other agreement or otherwise; (ii) any extension or renewal of this Indenture, the Notes or any other agreement; (iii) any rescission, waiver, amendment or modification of any of the terms or provisions of this Indenture, the Notes or any other agreement; (iv) the release of any security held by any holder or the Trustee for the Guaranteed Obligations or each Guarantor; (v) the failure of any holder or Trustee to exercise any right or remedy against any other guarantor of the Guaranteed Obligations; or (vi) any change in the ownership of each Guarantor, except as provided in Section 12.02(b). Each Guarantor hereby waives any right to which it may be entitled to have its obligations hereunder divided among the Guarantors, such that such Guarantor’s obligations would be less than the full amount claimed.

106

(c) Each Guarantor hereby waives any right to which it may be entitled to have the assets of the Issuers first be used and depleted as payment of the Issuers’ or such Guarantor’s obligations hereunder prior to any amounts being claimed from or paid by such Guarantor hereunder. Each Guarantor hereby waives any right to which it may be entitled to require that the Issuers be sued prior to an action being initiated against such Guarantor.

(d) Each Guarantor further agrees that its Guarantee herein constitutes a guarantee of payment, performance and compliance when due (and not a guarantee of collection) and waives any right to require that any resort be had by any holder or the Trustee to any security held for payment of the Guaranteed Obligations.

(e) The Guarantee of each Guarantor is, to the extent and in the manner set forth in Article XII, equal in right of payment to all existing and future Pari Passu Indebtedness, senior in right of payment to all existing and future Subordinated Indebtedness of such Guarantor and subordinated and subject in right of payment to the prior payment in full of the principal of and premium, if any, and interest on all Secured Indebtedness of the relevant Guarantor and is made subject to such provisions of this Indenture.

(f) Except as expressly set forth in Sections 8.01(b), 12.02 and 12.06, the obligations of each Guarantor hereunder shall not be subject to any reduction, limitation, impairment or termination for any reason, including any claim of waiver, release, surrender, alteration or compromise, and shall not be subject to any defense of setoff, counterclaim, recoupment or termination whatsoever or by reason of the invalidity, illegality or unenforceability of the Guaranteed Obligations or otherwise. Without limiting the generality of the foregoing, the obligations of each Guarantor herein shall not be discharged or impaired or otherwise affected by the failure of any holder or the Trustee to assert any claim or demand or to enforce any remedy under this Indenture, the Notes or any other agreement, by any waiver or modification of any thereof, by any default, failure or delay, willful or otherwise, in the performance of the obligations, or by any other act or thing or omission or delay to do any other act or thing which may or might in any manner or to any extent vary the risk of any Guarantor or would otherwise operate as a discharge of any Guarantor as a matter of law or equity.

(g) Each Guarantor agrees that its Guarantee shall remain in full force and effect until payment in full of all the Guaranteed Obligations. Each Guarantor further agrees that its Guarantee herein shall continue to be effective or be reinstated, as the case may be, if at any time payment, or any part thereof, of principal of or interest on any Guaranteed Obligation is rescinded or must otherwise be restored by any holder or the Trustee upon the bankruptcy or reorganization of the Issuers or otherwise.

(h) In furtherance of the foregoing and not in limitation of any other right which any holder or the Trustee has at law or in equity against any Guarantor by virtue hereof, upon the failure of the Issuers to pay the principal of or interest on any Guaranteed Obligation when and as the same shall become due, whether at maturity, by acceleration, by redemption or otherwise, or to perform or comply with any other Guaranteed Obligation, each Guarantor hereby promises to and shall, upon receipt of written demand by the Trustee, forthwith pay, or cause to be paid, in cash, to the holders or the Trustee an amount equal to the sum of (i) the unpaid principal amount of such Guaranteed Obligations, (ii) accrued and unpaid interest on such

107

Guaranteed Obligations (but only to the extent not prohibited by applicable law) and (iii) all other monetary obligations of the Issuers to the holders and the Trustee.

(i) Each Guarantor agrees that it shall not be entitled to any right of subrogation in relation to the holders in respect of any Guaranteed Obligations guaranteed hereby until payment in full of all Guaranteed Obligations. Each Guarantor further agrees that, as between it, on the one hand, and the holders and the Trustee, on the other hand, (i) the maturity of the Guaranteed Obligations guaranteed hereby may be accelerated as provided in Article VI for the purposes of the Guarantee herein, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the Guaranteed Obligations guaranteed hereby, and (ii) in the event of any declaration of acceleration of such Guaranteed Obligations as provided in Article VI, such Guaranteed Obligations (whether or not due and payable) shall forthwith become due and payable by the Guarantors for the purposes of this Section 12.01.

(j) Each Guarantor also agrees to pay any and all costs and expenses (including reasonable out-of-pocket attorneys’ fees and expenses) Incurred by the Trustee or any holder in enforcing any rights under this Section 12.01.

(k) Upon request of the Trustee, each Guarantor shall execute and deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the purpose of this Indenture.

SECTION 12.02 Limitation on Liability.

(a) Any term or provision of this Indenture to the contrary notwithstanding, the maximum aggregate amount of the Guaranteed Obligations guaranteed hereunder by each Guarantor shall not exceed the maximum amount that can be hereby guaranteed by the applicable Guarantor without rendering this Indenture, as it relates to such Guarantor, voidable under applicable law relating to fraudulent conveyance or fraudulent transfer or similar laws affecting the rights of creditors generally or capital maintenance or corporate benefit rules applicable to guarantees for obligations of affiliates.

(b) A Guarantee as to any Guarantor that is a party hereto on the date hereof or that executes a supplemental indenture in accordance with Section 4.11 hereof and provides a guarantee shall terminate and be of no further force or effect and such Guarantee shall be deemed to be released from all obligations under this Article XII upon:

(i) the sale, disposition, exchange or other transfer (including through merger, consolidation, amalgamation or otherwise) of the Capital Stock (including any sale, disposition or other transfer following which the applicable Guarantor that is a Subsidiary of Holdings is no longer a Restricted Subsidiary) of the applicable Guarantor that is a Subsidiary of Holdings if such sale, disposition, exchange or other transfer is made in a manner not in violation of this Indenture;

(ii) the designation of such Guarantor that is a Subsidiary of Holdings as an Unrestricted Subsidiary in accordance with the provisions of Section 4.04 and the definition of “Unrestricted Subsidiary”;

108

(iii) the release or discharge of the guarantee by such Guarantor of the Credit Agreement or other Indebtedness or the guarantee of any other Indebtedness which resulted in the obligation to guarantee the Notes;

(iv) the Issuers’ exercise of their legal defeasance option or covenant defeasance option under Article VIII or if the Issuers’ obligations under this Indenture are discharged in accordance with the terms of this Indenture;

(v) such Guarantor that is a Subsidiary of Holdings ceasing to be a Subsidiary as a result of any foreclosure of any pledge or security interest securing Bank Indebtedness or other exercise of remedies in respect thereof; and

(vi) the occurrence of a Covenant Suspension Event.

SECTION 12.03 [Intentionally Omitted].

SECTION 12.04 Successors and Assigns. This Article XII shall be binding upon each Guarantor and its successors and assigns and shall inure to the benefit of the successors and assigns of the Trustee and the holders and, in the event of any transfer or assignment of rights by any holder or the Trustee, the rights and privileges conferred upon that party in this Indenture and in the Notes shall automatically extend to and be vested in such transferee or assignee, all subject to the terms and conditions of this Indenture.

SECTION 12.05 No Waiver. Neither a failure nor a delay on the part of either the Trustee or the holders in exercising any right, power or privilege under this Article XII shall operate as a waiver thereof, nor shall a single or partial exercise thereof preclude any other or further exercise of any right, power or privilege. The rights, remedies and benefits of the Trustee and the holders herein expressly specified are cumulative and not exclusive of any other rights, remedies or benefits which either may have under this Article XII at law, in equity, by statute or otherwise.

SECTION 12.06 Modification. No modification, amendment or waiver of any provision of this Article XII, nor the consent to any departure by any Guarantor therefrom, shall in any event be effective unless the same shall be in writing and signed by the Trustee, and then such waiver or consent shall be effective only in the specific instance and for the purpose for which given. No notice to or demand on any Guarantor in any case shall entitle any Guarantor to any other or further notice or demand in the same, similar or other circumstances.

SECTION 12.07 Execution of Supplemental Indenture for Future Guarantors. Each Subsidiary which is required to become a Subsidiary Guarantor of the Notes pursuant to Section 4.11 shall promptly execute and deliver to the Trustee a supplemental indenture in the form of Exhibit D hereto pursuant to which such Subsidiary shall become a Subsidiary Guarantor under this Article XII and shall guarantee the Notes. Concurrently with the execution and delivery of such supplemental indenture, Holdings shall deliver to the Trustee an Opinion of Counsel and an Officers’ Certificate certifying that such supplemental indenture has been duly authorized, executed and delivered by such Subsidiary and that, subject to the application of bankruptcy, insolvency, moratorium, fraudulent conveyance or transfer and other similar laws relating to creditors’ rights generally and to the principles of equity, whether

109

considered in a proceeding at law or in equity, the Subsidiary Guarantee of such Subsidiary Guarantor is a valid and binding obligation of such Subsidiary Guarantor, enforceable against such Subsidiary Guarantor in accordance with its terms and/or to such other matters as the Trustee may reasonably request.

SECTION 12.08 Non-Impairment. The failure to endorse a Guarantee on any Note shall not affect or impair the validity thereof.

ARTICLE XIII

[INTENTIONALLY OMITTED]

ARTICLE XIV

MISCELLANEOUS

SECTION 14.01 Trust Indenture Act Controls. If and to the extent that any provision of this Indenture limits, qualifies or conflicts with the duties imposed by, or with another provision (an “incorporated provision”) included in this Indenture by operation of, Sections 310 to 318 of the TIA, inclusive, such imposed duties or incorporated provision shall control.

SECTION 14.02 Notices.

(a) Any notice or communication required or permitted hereunder shall be in writing and delivered in person, via facsimile or mailed by first-class mail addressed as follows:

if to the Issuers or a Guarantor:

Athlon Holdings LP

000 Xxxxxxxxxxxx Xxxxxx, Xxxxx 0000

Xxxx Xxxxx, Xxxxx 00000

Facsimile: 000-000-0000

Attention: Xxxxxx X. Xxxxxx

with copies to:

c/o Apollo Management, L.P.

0 Xxxx 00xx Xxxxxx, 00xx Xxxxx

Xxx Xxxx, XX 00000

Attention: Xxx Xx and Chief Legal Officer

Fax: 000-000-0000

and

Xxxxxx & Xxxxxxx LLP

000 Xxxx Xxxxxx, Xxxxx 0000

110

Houston, TX 77002

Attention: Xxxx Xxxxxxx

Fax: (000) 000-0000

if to the Trustee:

Xxxxx Fargo Bank, National Association

000 X. Xx. Xxxx Xxxxx, Xxxxx 0000

MAC T9263-170

Xxxxxx, XX 00000

Attention: Corporate Trust, Municipal and Escrow Services

Fax: (000) 000-0000

The Issuers or the Trustee by notice to the other may designate additional or different addresses for subsequent notices or communications.

(b) Any notice or communication mailed to a holder shall be mailed, first class mail, to the holder at the holder’s address as it appears on the registration books of the Registrar and shall be sufficiently given if so mailed within the time prescribed.

(c) Failure to mail a notice or communication to a holder or any defect in it shall not affect its sufficiency with respect to other holders. If a notice or communication is mailed in the manner provided above, it is duly given, whether or not the addressee receives it, except that notices to the Trustee are effective only if received.

The Trustee may, in its sole discretion, agree to accept and act upon instructions or directions pursuant to this Indenture sent by e-mail, facsimile transmission or other similar electronic methods. If the party elects to give the Trustee e-mail or facsimile instructions (or instructions by a similar electronic method) and the Trustee in its discretion elects to act upon such instructions, the Trustee’s understanding of such instructions shall be deemed controlling. The Trustee shall not be liable for any losses, costs or expenses arising directly or indirectly from the Trustee’s reliance upon and compliance with such instructions notwithstanding such instructions conflict or are inconsistent with a subsequent written instruction. The party providing electronic instructions agrees to assume all risks arising out of the use of such electronic methods to submit instructions and directions to the Trustee, including without limitation the risk of the Trustee acting on unauthorized instructions, and the risk or interception and misuse by third parties.

Notwithstanding anything to the contrary contained herein, as long as the Notes are in the form of a Global Note, notice to the holders shall be made electronically in accordance with procedures of the Depositary and shall be sufficiently given if so made in accordance with such procedures.

SECTION 14.03 Communication by the Holders with Other Holders. The holders may communicate pursuant to Section 312(b) of the TIA with other holders with respect

111

to their rights under this Indenture or the Notes. The Issuers, the Trustee, the Registrar and other Persons shall have the protection of Section 312(c) of the TIA.

SECTION 14.04 Certificate and Opinion as to Conditions Precedent. Upon any request or application by the Issuers to the Trustee to take or refrain from taking any action under this Indenture, the Issuers shall furnish to the Trustee at the request of the Trustee:

(a) an Officers’ Certificate in form reasonably satisfactory to the Trustee stating that, in the opinion of the signers, all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with; and

(b) an Opinion of Counsel in form reasonably satisfactory to the Trustee stating that, in the opinion of such counsel, all such conditions precedent have been complied with.

SECTION 14.05 Statements Required in Certificate or Opinion. Each certificate or opinion with respect to compliance with a covenant or condition provided for in this Indenture (other than pursuant to Section 4.09) shall include:

(a) a statement that the individual making such certificate or opinion has read such covenant or condition;

(b) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(c) a statement that, in the opinion of such individual, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such covenant or condition has been complied with; and

(d) a statement as to whether or not, in the opinion of such individual, such covenant or condition has been complied with; provided, however, that with respect to matters of fact an Opinion of Counsel may rely on an Officers’ Certificate or certificates of public officials.

SECTION 14.06 When Notes Disregarded. In determining whether the holders of the required principal amount of Notes have concurred in any direction, waiver or consent, Notes owned by the Issuers, the Guarantors or by any Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Issuers or the Guarantors shall be disregarded and deemed not to be outstanding, except that, for the purpose of determining whether the Trustee shall be protected in relying on any such direction, waiver or consent, only Notes which the Trustee actually knows are so owned shall be so disregarded. Subject to the foregoing, only Notes outstanding at the time shall be considered in any such determination.

SECTION 14.07 Rules by Trustee, Paying Agent and Registrar. The Trustee may make reasonable rules for action by or a meeting of the holders. The Registrar and a Paying Agent may make reasonable rules for their functions.

112

SECTION 14.08 Legal Holidays. If a payment date is not a Business Day, payment shall be made on the next succeeding day that is a Business Day, and no interest shall accrue on any amount that would have been otherwise payable on such payment date if it were a Business Day for the intervening period. If a regular Record Date is not a Business Day, the Record Date shall not be affected.

SECTION 14.09 GOVERNING LAW. THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

SECTION 14.10 No Recourse Against Others. No director, officer, employee, manager, incorporator or holder of any Equity Interests in Holdings or of any Guarantor or any direct or indirect parent companies, as such, shall have any liability for any obligations of the Issuers or any Guarantor under the Notes, the Guarantees or this Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes.

SECTION 14.11 Successors. All agreements of the Issuers and the Guarantors in this Indenture and the Notes shall bind such person’s successors. All agreements of the Trustee in this Indenture shall bind its successors.

SECTION 14.12 Multiple Originals. The parties may sign any number of copies of this Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. One signed copy is enough to prove this Indenture.

SECTION 14.13 Table of Contents; Headings. The table of contents, cross-reference sheet and headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not intended to be considered a part hereof and shall not modify or restrict any of the terms or provisions hereof.

SECTION 14.14 Indenture Controls. If and to the extent that any provision of the Notes limits, qualifies or conflicts with a provision of this Indenture, such provision of this Indenture shall control.

SECTION 14.15 Severability. In case any provision in this Indenture shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or unenforceability.

SECTION 14.16 Waiver of Jury Trial. EACH OF THE ISSUERS, THE GUARANTORS AND THE TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTION CONTEMPLATED HEREBY.

113

[Remainder of page intentionally left blank.]

114

IN WITNESS WHEREOF, the parties have caused this Indenture to be duly executed as of the date first written above.

ATHLON HOLDINGS LP


By:	/s/ Xxxxxxx X. X. Xxxxxx
	Name:	Xxxxxxx X. X. Xxxxxx
	Title:	Vice President and Chief Financial
		Officer


ATHLON FINANCE CORP.


By:	/s/ Xxxxxxx X. X. Xxxxxx
	Name:	Xxxxxxx X. X. Xxxxxx
	Title:	Vice President and Chief Financial
		Officer


ATHLON ENERGY INC.


By:	/s/ Xxxxxxx X. X. Xxxxxx
	Name:	Xxxxxxx X. X. Xxxxxx
	Title:	Vice President and Chief Financial
		Officer

[Signature Page to Indenture]

	XXXXX FARGO BANK, NATIONAL ASSOCIATION, not in its individual capacity, but solely as Trustee


	By:	/s/ Xxxx X. Xxxxxxxx
		Name: Xxxx X. Xxxxxxxxx
		Title: Vice President

[Signature Page to Indenture]

APPENDIX A

PROVISIONS RELATING TO INITIAL NOTES AND ADDITIONAL NOTES

1. Definitions.

1.1 Definitions.

For the purposes of this Appendix A the following terms shall have the meanings indicated below:

“Definitive Note” means a certificated Initial Note, Additional Note or Exchange Note (bearing the Restricted Notes Legend if the transfer of such Note is restricted by applicable law) that does not include the Global Notes Legend.

“Depositary” means The Depository Trust Company, its nominees and their respective successors.

“Global Notes Legend” means the legend set forth under that caption in the applicable Exhibit to this Indenture.

“IAI” means an institutional “accredited investor” as described in Rule 501(a)(1), (2), (3) or (7) under the Securities Act.

“Initial Purchasers” means Citigroup Global Markets Inc., Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx Incorporated, Xxxxx Fargo Securities, LLC, Credit Agricole Securities (USA) Inc., Mitsubishi UFJ Securities (USA), Inc., RBC Capital Markets, LLC, Scotia Capital (USA) Inc., UBS Securities LLC, Xxxxxxx, Xxxxx & Co., Apollo Global Securities, LLC, Barclays Capital Inc., Credit Suisse Securities (USA) LLC and The Huntington Investment Company.

“Notes Custodian” means the custodian with respect to a Global Note (as appointed by the Depositary) or any successor person thereto, who shall initially be the Trustee.

“QIB” means a “qualified institutional buyer” as defined in Rule 144A.

“Regulation S” means Regulation S under the Securities Act.

“Regulation S Notes” means all Initial Notes offered and sold outside the United States in reliance on Regulation S.

“Restricted Notes Legend” means the legend set forth in Section 2.2(f)(i) herein.

“Restricted Period,” with respect to any Notes, means the period of 40 consecutive days beginning on and including the later of (a) the day on which such Notes are first offered to persons other than distributors (as defined in Regulation S under the Securities Act) in reliance on Regulation S, notice of which day shall be promptly given by the Issuers to the Trustee, and (b) the Issue Date, and with respect to any Additional Notes that are Transfer Restricted Notes, it means the comparable period of 40 consecutive days.

Appendix A-1

“Rule 501” means Rule 501(a)(1), (2), (3) or (7) under the Securities Act.

“Rule 144A” means Rule 144A under the Securities Act.

“Rule 144A Notes” means all Initial Notes offered and sold to QIBs in reliance on Rule 144A.

“Transfer Restricted Definitive Notes” means Definitive Notes that bear or are required to bear or are subject to the Restricted Notes Legend.

“Transfer Restricted Global Notes” means Global Notes that bear or are required to bear or are subject to the Restricted Notes Legend.

“Transfer Restricted Notes” means the Transfer Restricted Definitive Notes and Transfer Restricted Global Notes.

“Unrestricted Definitive Notes” means Definitive Notes that are not required to bear, or are not subject to, the Restricted Notes Legend.

“Unrestricted Global Notes” means Global Notes that are not required to bear, or are not subject to, the Restricted Notes Legend.

1.2 Other Definitions.

Term:		Defined in Section:
Agent Members		2.1(b)
Global Notes		2.1(b)
Regulation S Global Notes		2.1(b)
Rule 144A Global Notes		2.1(b)

2. The Notes.

2.1 Form and Dating; Global Notes.

(a) The Initial Notes issued on the date hereof will be (i) privately placed by the Issuers pursuant to the Offering Memorandum and (ii) sold, initially only to (1) QIBs in reliance on Rule 144A and (2) Persons other than U.S. Persons (as defined in Regulation S) in reliance on Regulation S. Such Initial Notes may thereafter be transferred to, among others, QIBs, purchasers in reliance on Regulation S and, except as set forth below, IAIs in accordance with Rule 501. Additional Notes offered after the date hereof may be offered and sold by the Issuers from time to time pursuant to one or more agreements in accordance with applicable law.

(b) Global Notes. (i) Except as provided in clause (d) below, Rule 144A Notes initially shall be represented by one or more Notes in definitive, fully registered, global form without interest coupons (collectively, the “Rule 144A Global Notes”).

Regulation S Notes initially shall be represented by one or more Notes in fully registered, global form without interest coupons (collectively, the “Regulation S Global Notes”),

Appendix A-2

which shall be registered in the name of the Depositary or the nominee of the Depositary for the accounts of designated agents holding on behalf of Euroclear or Clearstream.

The term “Global Notes” means the Rule 144A Global Notes and the Regulation S Global Notes. The Global Notes shall bear the Global Note Legend. The Global Notes initially shall (i) be registered in the name of the Depositary or the nominee of such Depositary, in each case for credit to an account of an Agent Member, (ii) be delivered to the Trustee as custodian for such Depositary and (iii) bear the Restricted Notes Legend.

Members of, or direct or indirect participants in, the Depositary (collectively, the “Agent Members”) shall have no rights under this Indenture with respect to any Global Note held on their behalf by the Depositary, or the Trustee as its custodian, or under the Global Notes. The Depositary may be treated by the Issuers, the Trustee and any agent of the Issuers or the Trustee as the absolute owner of the Global Notes for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Issuers, the Trustee or any agent of the Issuers or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary, or impair, as between the Depositary and its Agent Members, the operation of customary practices governing the exercise of the rights of a holder of any Note.

(ii) Transfers of Global Notes shall be limited to transfer in whole, but not in part, to the Depositary, its successors or their respective nominees. Interests of beneficial owners in the Global Notes may be transferred or exchanged for Definitive Notes only in accordance with the applicable rules and procedures of the Depositary and the provisions of Section 2.2. In addition, a Global Note shall be exchangeable for Definitive Notes if (x) the Depositary (1) notifies the Issuers that it is unwilling or unable to continue as depositary for such Global Note and the Issuers thereupon fail to appoint a successor Depositary or (2) has ceased to be a clearing agency registered under the Exchange Act or (y) there shall have occurred and be continuing an Event of Default with respect to such Global Note and a request has been made for such exchange; provided that in no event shall the Regulation S Global Note be exchanged by the Issuers for Definitive Notes prior to (x) the expiration of the Restricted Period and (y) the receipt by the Registrar of any certificates required pursuant to Rule 903(b)(3)(ii)(B) under the Securities Act. In all cases, Definitive Notes delivered in exchange for any Global Note or beneficial interests therein shall be registered in the names, and issued in any approved denominations, requested by or on behalf of the Depositary in accordance with its customary procedures.

(iii) In connection with the transfer of a Global Note as an entirety to beneficial owners pursuant to subsection (i) of this Section 2.1(b), such Global Note shall be deemed to be surrendered to the Trustee for cancellation, and the Issuers shall execute, and, upon written order of each Issuer signed by an Officer, the Trustee shall authenticate and make available for delivery, to each beneficial owner identified by the Depositary in writing in exchange for its beneficial interest in such Global Note, an equal aggregate principal amount of Definitive Notes of authorized denominations.

Appendix A-3

(iv) Any Transfer Restricted Note delivered in exchange for an interest in a Global Note pursuant to Section 2.2 shall, except as otherwise provided in Section 2.2, bear the Restricted Notes Legend.

(v) Notwithstanding the foregoing, through the Restricted Period, a beneficial interest in a Regulation S Global Note may be held only through Euroclear or Clearstream unless delivery is made in accordance with the applicable provisions of Section 2.2.

(vi) The holder of any Global Note may grant proxies and otherwise authorize any Person, including Agent Members and Persons that may hold interests through Agent Members, to take any action which a holder is entitled to take under this Indenture or the Notes.

2.2 Transfer and Exchange.

(a) Transfer and Exchange of Global Notes. A Global Note may not be transferred as a whole except as set forth in Section 2.1(b). Global Notes will not be exchanged by the Issuers for Definitive Notes except under the circumstances described in Section 2.1(b)(ii). Global Notes also may be exchanged or replaced, in whole or in part, as provided in Section 2.08 of this Indenture. Beneficial interests in a Global Note may be transferred and exchanged as provided in Section 2.2(b).

(b) Transfer and Exchange of Beneficial Interests in Global Notes. The transfer and exchange of beneficial interests in the Global Notes shall be effected through the Depositary, in accordance with the provisions of this Indenture and the applicable rules and procedures of the Depositary. Beneficial interests in Transfer Restricted Global Notes shall be subject to restrictions on transfer comparable to those set forth herein to the extent required by the Securities Act. Beneficial interests in Global Notes shall be transferred or exchanged only for beneficial interests in Global Notes. Transfers and exchanges of beneficial interests in the Global Notes also shall require compliance with either subparagraph (i) or (ii) below, as applicable, as well as one or more of the other following subparagraphs, as applicable:

(i) Transfer of Beneficial Interests in the Same Global Note. Beneficial interests in any Transfer Restricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in the same Transfer Restricted Global Note in accordance with the transfer restrictions set forth in the Restricted Notes Legend; provided, however, that prior to the expiration of the Restricted Period, transfers of beneficial interests in a Regulation S Global Note may not be made to a U.S. Person or for the account or benefit of a U.S. Person. A beneficial interest in an Unrestricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note. No written orders or instructions shall be required to be delivered to the Registrar to effect the transfers described in this Section 2.2(b)(i).

(ii) All Other Transfers and Exchanges of Beneficial Interests in Global Notes. In connection with all transfers and exchanges of beneficial interests in any

Appendix A-4

Global Note that is not subject to Section 2.2(b)(i), the transferor of such beneficial interest must deliver to the Registrar (1) a written order from an Agent Member given to the Depositary in accordance with the applicable rules and procedures of the Depositary directing the Depositary to credit or cause to be credited a beneficial interest in another Global Note in an amount equal to the beneficial interest to be transferred or exchanged and (2) instructions given in accordance with the applicable rules and procedures of the Depositary containing information regarding the Agent Member account to be credited with such increase. Upon satisfaction of all of the requirements for transfer or exchange of beneficial interests in Global Notes contained in this Indenture and the Notes or otherwise applicable under the Securities Act, the Trustee shall adjust the principal amount of the relevant Global Note pursuant to Section 2.2(i).

(iii) Transfer of Beneficial Interests to Another Restricted Global Note. A beneficial interest in a Transfer Restricted Global Note may be transferred to a Person who takes delivery thereof in the form of a beneficial interest in another Transfer Restricted Global Note if the transfer complies with the requirements of Section 2.2(b)(ii) above and the Registrar receives the following:

(A) if the transferee will take delivery in the form of a beneficial interest in a Rule 144A Global Note, then the transferor must deliver a certificate in the form attached to the applicable Note; and

(B) if the transferee will take delivery in the form of a beneficial interest in a Regulation S Global Note, then the transferor must deliver a certificate in the form attached to the applicable Note.

(iv) Transfer and Exchange of Beneficial Interests in a Transfer Restricted Global Note for Beneficial Interests in an Unrestricted Global Note. A beneficial interest in a Transfer Restricted Global Note may be exchanged by any holder thereof for a beneficial interest in an Unrestricted Global Note or transferred to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note if the exchange or transfer complies with the requirements of Section 2.2(b)(ii) above and the Registrar receives the following:

(A) if the holder of such beneficial interest in a Transfer Restricted Global Note proposes to exchange such beneficial interest for a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form attached to the applicable Note; or

(B) if the holder of such beneficial interest in a Transfer Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form attached to the applicable Note,

Appendix A-5

in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Restricted Notes Legend are no longer required in order to maintain compliance with the Securities Act. If any such transfer or exchange is effected pursuant to this subparagraph (iv) at a time when an Unrestricted Global Note has not yet been issued, the Issuers shall issue and, upon receipt of an written order of Holdings in the form of an Officers’ Certificate in accordance with Section 2.01, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of beneficial interests transferred or exchanged pursuant to this subparagraph (iv).

(v) Transfer and Exchange of Beneficial Interests in an Unrestricted Global Note for Beneficial Interests in a Transfer Restricted Global Note. Beneficial interests in an Unrestricted Global Note cannot be exchanged for, or transferred to Persons who take delivery thereof in the form of, a beneficial interest in a Transfer Restricted Global Note.

(c) Transfer and Exchange of Beneficial Interests in Global Notes for Definitive Notes. A beneficial interest in a Global Note may not be exchanged for a Definitive Note except under the circumstances described in Section 2.1(b)(ii). A beneficial interest in a Global Note may not be transferred to a Person who takes delivery thereof in the form of a Definitive Note except under the circumstances described in Section 2.1(b)(ii). In any case, beneficial interests in Global Notes shall be transferred or exchanged only for Definitive Notes.

(d) Transfer and Exchange of Definitive Notes for Beneficial Interests in Global Notes. Transfers and exchanges of Definitive Notes for beneficial interests in the Global Notes also shall require compliance with either subparagraph (i), (ii) or (iii) below, as applicable:

(i) Transfer Restricted Definitive Notes to Beneficial Interests in Transfer Restricted Global Notes. If any holder of a Transfer Restricted Definitive Note proposes to exchange such Transfer Restricted Definitive Note for a beneficial interest in a Transfer Restricted Global Note or to transfer such Transfer Restricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in a Restricted Global Note, then, upon receipt by the Registrar of the following documentation:

(A) if the holder of such Transfer Restricted Definitive Note proposes to exchange such Transfer Restricted Note for a beneficial interest in a Transfer Restricted Global Note, a certificate from such holder in the form attached to the applicable Note;

(B) if such Transfer Restricted Definitive Note is being transferred to a QIB in accordance with Rule 144A under the Securities Act, a certificate from such holder in the form attached to the applicable Note;

(C) if such Transfer Restricted Definitive Note is being transferred to a Non U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904 under the Securities Act, a certificate from such holder in the form attached to the applicable Note;

Appendix A-6

(D) if such Transfer Restricted Definitive Note is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144 under the Securities Act, a certificate from such holder in the form attached to the applicable Note;

(E) if such Transfer Restricted Definitive Note is being transferred to an IAI in reliance on an exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (B) through (D) above, a certificate from such holder in the form attached to the applicable Note, including the certifications, certificates and Opinion of Counsel, if applicable; or

(F) if such Transfer Restricted Definitive Note is being transferred to Holdings or a Subsidiary thereof, a certificate from such holder in the form attached to the applicable Note;

the Trustee shall cancel the Transfer Restricted Definitive Note, and increase or cause to be increased the aggregate principal amount of the appropriate Transfer Restricted Global Note.

(ii) Transfer Restricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A holder of a Transfer Restricted Definitive Note may exchange such Transfer Restricted Definitive Note for a beneficial interest in an Unrestricted Global Note or transfer such Transfer Restricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note only if the Registrar receives the following:

(A) if the holder of such Transfer Restricted Definitive Note proposes to exchange such Transfer Restricted Definitive Note for a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form attached to the applicable Note; or

(B) if the holder of such Transfer Restricted Definitive Notes proposes to transfer such Transfer Restricted Definitive Note to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form attached to the applicable Note,

and, in each such case, if the Issuers or the Registrar so request or if the applicable rules and procedures of the Depositary so require, an Opinion of Counsel in form reasonably acceptable to the Issuers and the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Restricted Notes Legend are no longer required in order to maintain compliance with the Securities Act. Upon satisfaction of the conditions of this subparagraph (ii), the Trustee shall cancel the Transfer Restricted Definitive Notes and increase or cause to be increased the aggregate principal amount of the Unrestricted Global Note. If any such transfer or exchange is effected pursuant to this subparagraph (ii) at a time when an Unrestricted Global Note has not yet been issued, the Issuers shall issue and, upon receipt of an written order of Holdings in the form of an Officers’

Appendix A-7

Certificate, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of Transfer Restricted Notes transferred or exchanged pursuant to this subparagraph (ii).

(iii) Unrestricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A holder of an Unrestricted Definitive Note may exchange such Unrestricted Definitive Note for a beneficial interest in an Unrestricted Global Note or transfer such Unrestricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note at any time. Upon receipt of a request for such an exchange or transfer, the Trustee shall cancel the applicable Unrestricted Definitive Note and increase or cause to be increased the aggregate principal amount of one of the Unrestricted Global Notes. If any such transfer or exchange is effected pursuant to this subparagraph (iii) at a time when an Unrestricted Global Note has not yet been issued, the Issuers shall issue and, upon receipt of an written order of Holdings in the form of an Officers’ Certificate, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of Unrestricted Definitive Notes transferred or exchanged pursuant to this subparagraph (iii).

(iv) Unrestricted Definitive Notes to Beneficial Interests in Transfer Restricted Global Notes. An Unrestricted Definitive Note cannot be exchanged for, or transferred to a Person who takes delivery thereof in the form of, a beneficial interest in a Transfer Restricted Global Note.

(e) Transfer and Exchange of Definitive Notes for Definitive Notes. Upon request by a holder of Definitive Notes and such holder’s compliance with the provisions of this Section 2.2(e), the Registrar shall register the transfer or exchange of Definitive Notes. Prior to such registration of transfer or exchange, the requesting holder shall present or surrender to the Registrar the Definitive Notes duly endorsed or accompanied by a written instruction of transfer in form satisfactory to the Registrar duly executed by such holder or by its attorney, duly authorized in writing. In addition, the requesting holder shall provide any additional certifications, documents and information, as applicable, required pursuant to the following provisions of this Section 2.2(e).

(i) Transfer Restricted Definitive Notes to Transfer Restricted Definitive Notes. A Transfer Restricted Note may be transferred to and registered in the name of a Person who takes delivery thereof in the form of a Transfer Restricted Definitive Note if the Registrar receives the following:

(A) if the transfer will be made pursuant to Rule 144A under the Securities Act, then the transferor must deliver a certificate in the form attached to the applicable Note;

(B) if the transfer will be made pursuant to Rule 903 or Rule 904 under the Securities Act, then the transferor must deliver a certificate in the form attached to the applicable Note;

Appendix A-8

(C) if the transfer will be made pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144 under the Securities Act, a certificate in the form attached to the applicable Note;

(D) if the transfer will be made to an IAI in reliance on an exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (A) through (D) above, a certificate in the form attached to the applicable Note; and

(E) if such transfer will be made to Holdings or a Subsidiary thereof, a certificate in the form attached to the applicable Note.

(ii) Transfer Restricted Definitive Notes to Unrestricted Definitive Notes. Any Transfer Restricted Definitive Note may be exchanged by the holder thereof for an Unrestricted Definitive Note or transferred to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note if the Registrar receives the following:

(A) if the holder of such Transfer Restricted Definitive Note proposes to exchange such Transfer Restricted Definitive Note for an Unrestricted Definitive Note, a certificate from such holder in the form attached to the applicable Note; or

(B) if the holder of such Transfer Restricted Definitive Note proposes to transfer such Notes to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such holder in the form attached to the applicable Note,

and, in each such case, if the Issuers or the Registrar so request, an Opinion of Counsel in form reasonably acceptable to the Issuers and the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Restricted Notes Legend are no longer required in order to maintain compliance with the Securities Act.

(iii) Unrestricted Definitive Notes to Unrestricted Definitive Notes. A holder of an Unrestricted Definitive Note may transfer such Unrestricted Definitive Notes to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note at any time. Upon receipt of a request to register such a transfer, the Registrar shall register the Unrestricted Definitive Notes pursuant to the instructions from the holder thereof.

(iv) Unrestricted Definitive Notes to Transfer Restricted Definitive Notes. An Unrestricted Definitive Note cannot be exchanged for, or transferred to a Person who takes delivery thereof in the form of, a Transfer Restricted Definitive Note.

At such time as all beneficial interests in a particular Global Note have been exchanged for Definitive Notes or a particular Global Note has been redeemed, repurchased or canceled in whole and not in part, each such Global Note shall be returned to or retained and canceled by the Trustee in accordance with Section 2.11. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who will

Appendix A-9

take delivery thereof in the form of a beneficial interest in another Global Note or for Definitive Notes, the principal amount of Notes represented by such Global Note shall be reduced accordingly and an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note, such other Global Note shall be increased accordingly and an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase.

(f) Legend.

(i) Except as permitted by the following paragraph (iii), (iv) or (v), each Note certificate evidencing the Global Notes and any Definitive Notes (and all Notes issued in exchange therefor or in substitution thereof) shall bear a legend in substantially the following form (each defined term in the legend being defined as such for purposes of the legend only):

“THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF (1) REPRESENTS THAT (A) IT IS A ‘‘QUALIFIED

Appendix A-10

INSTITUTIONAL BUYER’’ (AS DEFINED IN RULE 144A PROMULGATED UNDER THE SECURITIES ACT) (B) IT IS A NON-U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION WITHIN THE MEANING OF REGULATION S PROMULGATED UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO IT IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE, OR (C) IT IS AN “ACCREDITED INVESTOR” WITHIN THE MEANING OF REGULATION D PROMULGATED UNDER THE SECURITIES ACT AND (2) AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144 PROMULGATED UNDER THE SECURITIES ACT ONLY (A) TO THE ISSUERS OR ANY SUBSIDIARY THEREOF, (B) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A, TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A PROMULGATED UNDER THE SECURITIES ACT) THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHICH NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (C) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO IT IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE, (D) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF REGULATION D THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, (E) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE ISSUERS’ AND THE TRUSTEE’S, OR REGISTRAR’S, AS APPLICABLE, RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSE (C), (D) OR (F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND IN EACH OF THE FOREGOING CASES, A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THE OTHER SIDE OF THIS SECURITY IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE OR REGISTRAR. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144.”

Each Transfer Restricted Note offered in reliance on Regulation S shall bear the following additional legend:

BY ITS ACQUISITION HEREOF, THE HOLDER HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON, NOR IS IT PURCHASING FOR THE ACCOUNT OF A U.S. PERSON, AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT.

Appendix A-11

Each Temporary Global Note offered in reliance on Regulation S shall bear the following additional legend during the Restricted Period:

THE RIGHTS ATTACHING TO THIS REGULATION S TEMPORARY GLOBAL NOTE, AND THE CONDITIONS AND PROCEDURES GOVERNING ITS EXCHANGE FOR A REGULATION S PERMANENT GLOBAL NOTE, ARE AS SPECIFIED IN THE INDENTURE (AS DEFINED HEREIN). NEITHER THE HOLDER NOR THE BENEFICIAL OWNERS OF THIS REGULATION S TEMPORARY GLOBAL NOTE SHALL BE ENTITLED TO RECEIVE PAYMENT OF INTEREST HEREON.

Each Definitive Note shall bear the following additional legend:

“IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH TRANSFER AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS.”

(ii) Upon any sale or transfer of a Transfer Restricted Definitive Note, the Registrar shall permit the holder thereof to exchange such Transfer Restricted Note for a Definitive Note that does not bear the legends set forth above and rescind any restriction on the transfer of such Transfer Restricted Definitive Note if the holder certifies in writing to the Registrar that its request for such exchange was made in reliance on Rule 144 (such certification to be in the form set forth on the reverse of the Initial Note).

(iii) Upon a sale or transfer after the expiration of the Restricted Period of any Initial Note acquired pursuant to Regulation S, all requirements that such Initial Note bear the Restricted Notes Legend shall cease to apply and the requirements requiring any such Initial Note be issued in global form shall continue to apply.

(g) Cancellation or Adjustment of Global Note. At such time as all beneficial interests in a particular Global Note have been exchanged for Definitive Notes or a particular Global Note has been redeemed, repurchased or canceled in whole and not in part, each such Global Note shall be returned to or retained and canceled by the Trustee in accordance with Section 2.10 of this Indenture. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note or for Definitive Notes, the principal amount of Notes represented by such Global Note shall be reduced accordingly and an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note, such other Global Note shall be increased accordingly and an endorsement shall be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase.

Appendix A-12

(h) Obligations with Respect to Transfers and Exchanges of Notes.

(i) To permit registrations of transfers and exchanges, the Issuers shall execute and the Trustee shall authenticate, Definitive Notes and Global Notes at the Registrar’s request.

(ii) No service charge shall be made for any registration of transfer or exchange, but the Issuers may require payment of a sum sufficient to cover any transfer tax, assessments, or similar governmental charge payable in connection therewith (other than any such transfer taxes, assessments or similar governmental charge payable upon exchanges pursuant to Sections 3.06, 4.06, 4.08 and 9.05 of this Indenture).

(iii) Prior to the due presentation for registration of transfer of any Note, the Issuers, the Trustee, a Paying Agent or the Registrar may deem and treat the person in whose name a Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of and interest on such Note and for all other purposes whatsoever, whether or not such Note is overdue, and none of the Issuers, the Trustee, the Paying Agent or the Registrar shall be affected by notice to the contrary.

(iv) All Notes issued upon any transfer or exchange pursuant to the terms of this Indenture shall evidence the same debt and shall be entitled to the same benefits under this Indenture as the Notes surrendered upon such transfer or exchange.

(i) No Obligation of the Trustee.

(i) The Trustee shall have no responsibility or obligation to any beneficial owner of a Global Note, a member of, or a participant in the Depositary or any other Person with respect to the accuracy of the records of the Depositary or its nominee or of any participant or member thereof, with respect to any ownership interest in the Notes or with respect to the delivery to any participant, member, beneficial owner or other Person (other than the Depositary) of any notice (including any notice of redemption or repurchase) or the payment of any amount, under or with respect to such Notes. All notices and communications to be given to the holders and all payments to be made to the holders under the Notes shall be given or made only to the registered holders (which shall be the Depositary or its nominee in the case of a Global Note). The rights of beneficial owners in any Global Note shall be exercised only through the Depositary subject to the applicable rules and procedures of the Depositary. The Trustee may rely and shall be fully protected in relying upon information furnished by the Depositary with respect to its members, participants and any beneficial owners.

(ii) The Trustee shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among Depositary participants, members or beneficial owners in any Global Note) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when

Appendix A-13

expressly required by, the terms of this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

Appendix A-14

EXHIBIT A

[FORM OF FACE OF INITIAL NOTE]

[Global Notes Legend]

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), NEW YORK, NEW YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

TRANSFERS OF THIS GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO DTC, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF.

[Restricted Notes Legend for Notes Offered in Reliance on Regulation S]

[Restricted Notes Legend for Temporary Global Notes Offered in Reliance on Regulation S]

[Restricted Notes Legend]

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR

Exhibit A-1

UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, REGISTRATION. THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF (1) REPRESENTS THAT (A) IT IS A ‘‘QUALIFIED INSTITUTIONAL BUYER’’ (AS DEFINED IN RULE 144A PROMULGATED UNDER THE SECURITIES ACT) (B) IT IS A NON-U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION WITHIN THE MEANING OF REGULATION S PROMULGATED UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO IT IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE, OR (C) IT IS AN “ACCREDITED INVESTOR” WITHIN THE MEANING OF REGULATION D PROMULGATED UNDER THE SECURITIES ACT AND (2) AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144 PROMULGATED UNDER THE SECURITIES ACT ONLY (A) TO THE ISSUERS OR ANY SUBSIDIARY THEREOF, (B) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A, TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A PROMULGATED UNDER THE SECURITIES ACT) THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHICH NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (C) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO IT IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE, (D) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF REGULATION D THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, (E) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE ISSUERS’ AND THE TRUSTEE’S, OR REGISTRAR’S, AS APPLICABLE, RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSE (C), (D) OR (F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND IN EACH OF THE FOREGOING CASES, A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THE OTHER SIDE OF THIS SECURITY IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE OR REGISTRAR. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE EXPIRATION OF THE APPLICABLE HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144.

[Definitive Notes Legend]

“IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH TRANSFER AGENT MAY REASONABLY REQUIRE TO

A-2

CONFIRM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS.”

A-3

[FORM OF INITIAL NOTE]

ATHLON HOLDINGS LP
ATHLON FINANCE CORP.

No. [ ]	144A CUSIP No. 047478 AC6
	000X XXXX Xx. XX000000XX00
	REG S CUSIP No. U04793 AB8
	REG X XXXX Xx. XXX00000XX00
	$[ ]

6.000% Senior Note due 2022

ATHLON HOLDINGS LP, a Delaware limited partnership, and ATHLON FINANCE CORP., a Delaware corporation, jointly and severally, promise to pay to Cede & Co., or registered assigns, the principal sum set forth on the Schedule of Increases or Decreases in Global Note attached hereto on May 1, 2022.

Interest Payment Dates: May 1 and November 1, commencing November 1, 2014

Record Dates: April 15 and October 15

Additional provisions of this Note are set forth on the other side of this Note.

A-4

IN WITNESS WHEREOF, the parties have caused this instrument to be duly executed.

	ATHLON HOLDINGS LP


	By:
		Name:	Xxxxxxx X. X. Xxxxxx
		Title:	Vice President and Chief Financial
			Officer


	ATHLON FINANCE CORP.


	By:
		Name:	Xxxxxxx X. X. Xxxxxx
		Title:	Vice President and Chief Financial
			Officer


Dated: May 1, 2014

A-5

TRUSTEE’S CERTIFICATE OF AUTHENTICATION
TRUSTEE’S CERTIFICATE OF AUTHENTICATION

XXXXX FARGO BANK, NATIONAL ASSOCIATION as Trustee, certifies that this is one of the Notes referred to in the Indenture.




By:
	Authorized Signatory

Dated:

*/ If the Note is to be issued in global form, add the Global Notes Legend and the attachment from Exhibit A captioned “TO BE ATTACHED TO GLOBAL NOTES - SCHEDULE OF INCREASES OR DECREASES IN GLOBAL NOTE.”

A-6

[FORM OF REVERSE SIDE OF INITIAL NOTE]

6.000% Senior Note Due 2022

1. Interest

ATHLON HOLDINGS LP, a Delaware limited partnership (such entity, and its successors and assigns under the Indenture hereinafter referred to, being herein called “Holdings”), and ATHLON FINANCE CORP., a Delaware corporation (such entity, and its successors and assigns under the Indenture hereinafter referred to, being herein called the “Co-Issuer” and, together with Holdings, the “Issuers”), jointly and severally, promise to pay interest on the principal amount of this Note at the rate per annum shown above. The Issuers shall pay interest semiannually on May 1 and November 1 of each year (each an “Interest Payment Date”), commencing November 1, 2014. Interest on the Notes shall accrue from the most recent date to which interest has been paid or duly provided for or, if no interest has been paid or duly provided for, from May 1, 2014, until the principal hereof is due. Interest shall be computed on the basis of a 360-day year of twelve 30-day months. The Issuers shall pay interest on overdue principal at the rate borne by the Notes, and it shall pay interest on overdue installments of interest at the same rate to the extent lawful.

2. Method of Payment

The Issuers shall pay interest on the Notes (except defaulted interest) to the Persons who are registered holders at the close of business on April 15 and October 15 (each a “Record Date”) immediately preceding the Interest Payment Date even if Notes are canceled after the Record Date and on or before the Interest Payment Date (whether or not a Business Day). Holders must surrender Notes to the Paying Agent to collect principal payments. The Issuers shall pay principal, premium, if any, and interest in money of the United States of America that at the time of payment is legal tender for payment of public and private debts. Payments in respect of the Notes represented by a Global Note (including principal, premium, if any, and interest) shall be made by wire transfer of immediately available funds to the accounts specified by The Depository Trust Company (“DTC”) or any successor depositary. The Issuers shall make all payments in respect of a certificated Note (including principal, premium, if any, and interest) at the office of the Paying Agent, except that, at the option of the Issuers, payment of interest may be made by mailing a check to the registered address of each holder thereof; provided, however, that payments on the Notes may also be made, in the case of a holder of at least $1,000,000 aggregate principal amount of Notes, by wire transfer to a U.S. dollar account maintained by the payee with a bank in the United States if such holder elects payment by wire transfer by giving written notice to the Trustee or Paying Agent to such effect designating such account no later than 30 days immediately preceding the relevant due date for payment (or such other date as the Trustee may accept in its discretion).

3. Paying Agent and Registrar

Initially, Xxxxx Fargo Bank, National Association, as trustee under the Indenture (the “Trustee”), will act as Paying Agent and Registrar. The Issuers may appoint and change any

A-7

Paying Agent or Registrar without notice. The Issuers or any of their domestically incorporated Wholly Owned Subsidiaries may act as Paying Agent or Registrar.

4. Indenture

The Issuers issued the Notes under an Indenture dated as of May 1, 2014 (the “Indenture”), among the Issuers, the Guarantors and the Trustee. Capitalized terms used herein are used as defined in the Indenture, unless otherwise indicated. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.C. §§ 77aaa-77bbbb) as in effect on the date of the Indenture (the “TIA”). The Notes are subject to all terms and provisions of the Indenture, and the holders (as defined in the Indenture) are referred to the Indenture for a statement of such terms and provisions. If and to the extent that any provision of the Notes limits, qualifies or conflicts with a provision of the Indenture, such provision of the Indenture shall control.

The Notes are senior unsecured obligations of the Issuers. This Note is one of the Initial Notes referred to in the Indenture. The Notes include the Initial Notes and any Additional Notes. The Initial Notes and any Additional Notes are treated as a single class of securities under the Indenture. The Indenture imposes certain limitations on the ability of Holdings and its Restricted Subsidiaries to, among other things, make certain Investments and other Restricted Payments, pay dividends and other distributions, Incur Indebtedness, enter into consensual restrictions upon the payment of certain dividends and distributions by such Restricted Subsidiaries, issue or sell shares of capital stock of Holdings and such Restricted Subsidiaries, enter into or permit certain transactions with Affiliates, create or Incur Liens and make Asset Sales. The Indenture also imposes limitations on the ability of each Issuer and each Subsidiary Guarantor to consolidate or merge with or into any other Person or convey, transfer or lease all or substantially all of its property.

To guarantee the due and punctual payment of the principal and interest on the Notes and all other amounts payable by the Issuers under the Indenture and the Notes when and as the same shall be due and payable, whether at maturity, by acceleration or otherwise, according to the terms of the Notes and the Indenture, the Guarantors have unconditionally guaranteed the Guaranteed Obligations pursuant to the terms of the Indenture and any Guarantor that executes a Guarantee will unconditionally guarantee the Guaranteed Obligations, which such Guarantees shall be on a senior unsecured basis from the Issue Date, pursuant to the terms of the Indenture.

5. Redemption

On or after May 1, 2017 the Issuers may redeem the Notes at their option, in whole at any time or in part from time to time, upon not less than 30 nor more than 60 days’ prior notice mailed by first-class mail to each holder’s registered address, at the following redemption prices (expressed as a percentage of principal amount), plus accrued and unpaid interest, if any, to, but excluding, the redemption date (subject to the right of holders of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date), if redeemed during the 12-month period commencing on May 1 of the years set forth below:

A-8

Period	Redemption Price
2017	104.500	%
2018	103.000	%
2019	101.500	%
2020 and thereafter	100.000	%

In addition, prior to May 1, 2017, the Issuers may redeem the Notes at their option, in whole at any time or in part from time to time, upon not less than 30 nor more than 60 days’ prior notice mailed by first-class mail to each holder’s registered address, at a redemption price equal to 100% of the principal amount of the Notes redeemed plus the Applicable Premium as of, and accrued and unpaid interest, if any, to, but excluding, the applicable redemption date (subject to the right of holders of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date).

Notwithstanding the foregoing, at any time and from time to time on or prior to May 1, 2017, the Issuers may redeem in the aggregate up to 35% of the original aggregate principal amount of the Notes (calculated after giving effect to any issuance of Additional Notes) with an amount equal to the net cash proceeds of one or more Equity Offerings (1) by Holdings or (2) by any direct or indirect parent of Holdings to the extent the net cash proceeds thereof are contributed to the common equity capital of Holdings or are used to purchase Capital Stock (other than Disqualified Stock) of Holdings, at a redemption price (expressed as a percentage of principal amount thereof) of 106.000%, plus accrued and unpaid interest, if any, to, but excluding, the redemption date (subject to the right of holders of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date); provided, however, that at least 50% of the original aggregate principal amount of the Notes (calculated after giving effect to any issuance of Additional Notes) must remain outstanding after each such redemption; provided, further, that such redemption shall occur within 180 days after the date on which any such Equity Offering is consummated upon not less than 30 nor more than 60 days’ notice mailed to each holder of Notes being redeemed and otherwise in accordance with the procedures set forth in the Indenture. Notice of any redemption upon any Equity Offering may be given prior to the completion thereof, and any such redemption or notice may, at the Issuer’s discretion, be subject to one or more conditions precedent, including, but not limited to, completion of the related Equity Offering.

If a Change of Control occurs at any time on or prior to July 15, 2015, the Issuers may, at their option, redeem all, but not less than all, of the Notes, at a redemption price equal to 110.0% of the principal amount of the Notes redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date (subject to the rights of holders of Notes on the relevant Record Date to receive interest due on the relevant Interest Payment Date). If the Issuers elect to exercise this redemption right, they must do so by mailing a redemption notice to each holder with a copy to the Trustee within 60 days following the Change of Control (or, at the Issuers’ option, prior to such Change of Control but after the transaction giving rise to such Change of Control is publicly announced). Any such redemption may be conditioned upon the Change of Control occurring if the notice is mailed prior to the Change of Control. If the Issuers exercise this Change of Control redemption right, they may elect not to make the Change of Control Offer described under Section 4.08 unless they default in payments due upon redemption.

A-9

6. Mandatory Redemption

Except as described in Section 3.09 of the Indenture and herein, the Issuers will not be required to make any mandatory redemption or sinking fund payments with respect to the Notes.

7. Notice of Redemption

Notices of redemption will be mailed by first class mail at least 30 but not more than 60 days before the redemption date, to each holder of Notes to be redeemed at its registered address (with a copy to the Trustee) or otherwise in accordance with the procedures of DTC, except that redemption notices may be mailed more than 60 days prior to the redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of the Indenture pursuant to Article VIII thereof; provided that, in the case of a Special Redemption, such notices may be sent less than 30 days (but at least 10 days) before the Special Redemption Date. If money sufficient to pay the redemption price of and accrued and unpaid interest on all Notes (or portions thereof) to be redeemed on the redemption date is deposited with a Paying Agent on or before the redemption date and certain other conditions are satisfied, on and after such date, interest ceases to accrue on such Notes (or such portions thereof) called for redemption.

8. Repurchase of Notes at the Option of the Holders upon Change of Control and Asset Sales

Upon the occurrence of a Change of Control Triggering Event, each holder shall have the right, subject to certain conditions specified in the Indenture, to cause the Issuers to repurchase all or any part of such holder’s Notes at a purchase price in cash equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the date of repurchase (subject to the right of the holders of record on the relevant Record Date to receive interest due on the relevant Interest Payment Date), as provided in, and subject to the terms of, the Indenture.

In accordance with Section 4.06 of the Indenture, the Issuers will be required to offer to purchase Notes upon the occurrence of certain events.

9. Special Redemption

If a Mandatory Redemption Event occurs, then on the Special Redemption Date, the Issuers shall redeem $250,000,000 of the Notes then outstanding, at a redemption price (the “Special Redemption Price”) equal to the initial offer price of the Notes plus accrued and unpaid interest to, but not including, the Special Redemption Date. In addition, if at any time the Issuers determine that a Mandatory Redemption Event is reasonably likely to occur, then the Issuers may, at their option, redeem $250,000,000 of the Notes then outstanding on the Special Redemption Date, at a redemption price equal to the Special Redemption Price. If a Mandatory Redemption Event occurs, the Issuers will provide written notice thereof to the Trustee, which notice shall specify whether the redemption is a Special Mandatory Redemption or a Special Optional Redemption, the Special Redemption Price and the Special Redemption Date. Such notice shall also instruct the Trustee to send a notice of redemption to the Holders, which notice

A-10

of redemption shall specify that the redemption is a Special Mandatory Redemption or a Special Optional Redemption, the Special Redemption Price and the Special Redemption Date. The Trustee shall select such Notes to be redeemed on a pro rata basis in accordance with the procedures of the Depositary. Such notice of redemption having been given, the $250,000,000 aggregate principal amount of Notes called for redemption shall become due and payable on the Special Redemption Date at the Special Redemption Price and shall cease to accrue interest, unless the Issuers fail to redeem such Notes. Upon the consummation of the Special Acquisitions, the provisions of this paragraph shall terminate and cease to apply.

10. Denominations; Transfer; Exchange

The Notes are in registered form, without coupons, in denominations of $2,000 principal amount and integral multiples of $1,000 in excess thereof. A holder shall register the transfer of or exchange of the Notes in accordance with the Indenture. Upon any registration of transfer or exchange, the Registrar and the Trustee may require a holder, among other things, to furnish appropriate endorsements or transfer documents and to pay any taxes required by law or permitted by the Indenture. The Registrar need not register the transfer of or exchange any Notes selected for redemption (except, in the case of a Note to be redeemed in part, the portion of the Note not to be redeemed) or to transfer or exchange any Notes for a period of 15 days prior to a selection of Notes to be redeemed.

11. Persons Deemed Owners

The registered holder of this Note shall be treated as the owner of it for all purposes.

12. Unclaimed Money

If money for the payment of principal or interest remains unclaimed for two years, the Trustee and a Paying Agent shall pay the money back to the Issuers at their written request unless an abandoned property law designates another Person. After any such payment, the holders entitled to the money must look to the Issuers for payment as general creditors and the Trustee and a Paying Agent shall have no further liability with respect to such monies.

13. Discharge and Defeasance

Subject to certain conditions, the Issuers at any time may terminate some of or all their obligations under the Notes and the Indenture if the Issuers deposit with the Trustee money or U.S. Government Obligations for the payment of principal and interest on the Notes to redemption or maturity, as the case may be.

14. Amendment; Waiver

Subject to certain exceptions set forth in the Indenture, (i) the Indenture or the Notes may be amended with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding Notes and (ii) any past default or compliance with any provisions may be waived with the written consent of the holders of at least a majority in principal amount of the outstanding Notes. Subject to certain exceptions set forth in the

A-11

Indenture, without the consent of any holder, the Issuers and the Trustee may amend the Indenture, the Notes or the Guarantees (i) to cure any ambiguity, omission, defect or inconsistency; (ii) to provide for the assumption by a Successor (with respect to an Issuer) of the obligations of an Issuer under the Indenture and the Notes; (iii) to provide for the assumption by a Successor Subsidiary Guarantor (with respect to any Subsidiary Guarantor), as the case may be, of the obligations of a Guarantor under the Indenture and its Guarantee; (iv) to provide for uncertificated Notes in addition to or in place of certificated Notes, provided, however, that the uncertificated Notes are issued in registered form for purposes of Section 163(f) of the Code, or in a manner such that the uncertificated Notes are described in Section 163(f)(2)(B) of the Code; (v) to conform the text of the Indenture, the Notes or the Guarantees to any provision of the “Description of Notes” in the Offering Memorandum to the extent that such provision in this Indenture, the Notes or the Guarantees was intended by the Issuers to be verbatim recitation of a provision in the “Description of Notes” in the Offering Memorandum; (vi) to add a guarantee or obligor with respect to the Notes; (vii) to release a Guarantee as permitted by the Indenture; (viii) to add to the covenants of the Issuers for the benefit of the holders or to surrender any right or power herein conferred upon the Issuers; (ix) to comply with any requirement of the SEC in connection with qualifying or maintaining the qualification of the Indenture under the TIA; (x) to make any change that does not adversely affect the rights of any holder; or (xi) to make certain changes to the Indenture to provide for the issuance of Additional Notes.

15. Defaults and Remedies

If an Event of Default (other than a Default relating to certain events of bankruptcy, insolvency or reorganization of the Issuer) occurs and is continuing, the Trustee or the holders of at least 30% in principal amount of outstanding Notes by notice to the Issuers may declare the principal of, premium, if any, and accrued but unpaid interest on all the Notes to be due and payable. Upon such a declaration, such principal and interest will be due and payable immediately. If an Event of Default relating to certain events of bankruptcy, insolvency or reorganization of the Issuers occurs, the principal of, premium, if any, and interest on all the Notes will become immediately due and payable without any declaration or other act on the part of the Trustee or any holders. Under certain circumstances, the holders of a majority in principal amount of outstanding Notes may rescind any such acceleration with respect to the Notes and its consequences.

If an Event of Default occurs and is continuing, the Trustee shall be under no obligation to exercise any of the rights or powers under the Indenture at the request or direction of any of the holders unless such holders have offered to the Trustee indemnity or security satisfactory to the Trustee against any loss, liability or expense and certain other conditions are complied with. No holder may pursue any remedy with respect to the Indenture unless (i) such holder has previously given the Trustee notice that an Event of Default is continuing, (ii) holders of at least 30% in principal amount of the outstanding Notes have requested the Trustee to pursue the remedy, (iii) such holders have offered the Trustee security or indemnity satisfactory to it against any loss, liability or expense, (iv) the Trustee has not complied with such request within 60 days after the receipt of the request and the offer of security or indemnity, and (v) the holders of a majority in principal amount of the outstanding Notes have not given the Trustee a direction inconsistent with such request within such 60-day period. Subject to certain restrictions, the holders of a majority in principal amount of outstanding Notes are given the right to direct the

A-12

time, method and place of conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power conferred on the Trustee. The Trustee, however, may refuse to follow any direction that conflicts with law or the Indenture or that the Trustee determines is unduly prejudicial to the rights of any other holder or that would involve the Trustee in personal liability. Prior to taking any action under the Indenture, the Trustee shall be entitled to indemnification reasonably satisfactory to it against all losses and expenses caused by taking or not taking such action.

16. Trustee Dealings with the Issuers

Subject to certain limitations imposed by the TIA, the Trustee under the Indenture, in its individual or any other capacity, may become the owner or pledgee of Notes and may otherwise deal with and collect obligations owed to it by the Issuers or their Affiliates and may otherwise deal with the Issuers or their Affiliates with the same rights it would have if it were not Trustee.

17. No Recourse Against Others

No director, officer, employee, manager, incorporator or holder of any Equity Interests in an Issuer or any Guarantor or any direct or indirect parent companies, as such, will have any liability for any obligations of an Issuer or any Guarantor under the Notes, the Indenture or the Guarantees, as applicable, or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each holder of Notes by accepting a Note waives and releases all such liability.

18. Authentication

This Note shall not be valid until an authorized signatory of the Trustee (or an authenticating agent) manually signs the certificate of authentication on the other side of this Note.

19. Abbreviations

Customary abbreviations may be used in the name of a holder or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors Act).

20. [Intentionally Omitted]

21. Governing Law

THIS SECURITY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

A-13

22. CUSIP Numbers; ISINs

The Issuers have caused CUSIP numbers and ISINs to be printed on the Notes and have directed the Trustee to use CUSIP numbers and ISINs in notices of redemption as a convenience to the holders. No representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon.

The Issuers will furnish to any holder of Notes upon written request and without charge to the holder a copy of the Indenture which has in it the text of this Note.

A-14

ASSIGNMENT FORM

To assign this Note, fill in the form below:

I or we assign and transfer this Note to:

(Print or type assignee’s name, address and zip code)

(Insert assignee’s soc. sec. or tax I.D. No.)

and irrevocably appoint agent to transfer this Note on the books of the Issuer. The agent may substitute another to act for him.

Date:

Your Signature:

Sign exactly as your name appears on the other side of this Note.

Signature Guarantee:

Date:
Signature must be guaranteed by a participant in a recognized signature guaranty medallion program or other signature guarantor program reasonably acceptable to the Trustee			Signature of Signature Guarantee

A-15

CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR

REGISTRATION OF TRANSFER RESTRICTED NOTES

This certificate relates to $ principal amount of Notes held in (check applicable space) book-entry or definitive form by the undersigned.

The undersigned (check one box below):

o has requested the Trustee by written order to deliver in exchange for its beneficial interest in the Global Note held by the Depositary a Note or Notes in definitive, registered form of authorized denominations and an aggregate principal amount equal to its beneficial interest in such Global Note (or the portion thereof indicated above);

o has requested the Trustee by written order to exchange or register the transfer of a Note or Notes.

In connection with any transfer of any of the Notes evidenced by this certificate occurring while this Note is still a Transfer Restricted Definitive Note or a Transfer Restricted Global Note, the undersigned confirms that such Notes are being transferred in accordance with its terms:

CHECK ONE BOX BELOW

(1)	o	to the Issuers; or
(2)	o	to the Registrar for registration in the name of the holder, without transfer; or
(3)	o	inside the United States to a “qualified institutional buyer” (as defined in Rule 144A under the Securities Act of 1933) that purchases for its own account or for the account of a qualified institutional buyer to whom notice is given that such transfer is being made in reliance on Rule 144A, in each case pursuant to and in compliance with Rule 144A under the Securities Act of 1933; or
(4)	o	outside the United States in an offshore transaction within the meaning of Regulation S under the Securities Act in compliance with Rule 904 under the Securities Act of 1933 and such Note shall be held immediately after the transfer through Euroclear or Clearstream until the expiration of the Restricted Period (as defined in the Indenture); or
(5)	o	to an institutional “accredited investor” (as defined in Rule 501(a)(1), (2), (3) or (7) under the Securities Act of 1933) that has furnished to the Trustee a signed letter containing certain representations and agreements; or
(6)	o	pursuant to another available exemption from registration provided by Rule 144 under the Securities Act of 1933.

Unless one of the boxes is checked, the Trustee will refuse to register any of the Notes evidenced by this certificate in the name of any Person other than the registered holder

A-16

thereof; provided, however, that if box (4), (5) or (6) is checked, the Issuers or the Trustee may require, prior to registering any such transfer of the Notes, such legal opinions, certifications and other information as the Issuers or the Trustee have reasonably requested to confirm that such transfer is being made pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act of 1933.

Date:

Your Signature:

Sign exactly as your name appears on the other side of this Note.

Signature Guarantee:

Date:
Signature must be guaranteed by a participant in a recognized signature guaranty medallion program or other signature guarantor program reasonably acceptable to the Trustee			Signature of Signature Guarantee

A-17

TO BE COMPLETED BY PURCHASER IF (3) ABOVE IS CHECKED.

The undersigned represents and warrants that it is purchasing this Note for its own account or an account with respect to which it exercises sole investment discretion and that it and any such account is a “qualified institutional buyer” within the meaning of Rule 144A under the Securities Act of 1933, and is aware that the sale to it is being made in reliance on Rule 144A and acknowledges that it has received such information regarding the Issuers as the undersigned has requested pursuant to Rule 144A or has determined not to request such information and that it is aware that the transferor is relying upon the undersigned’s foregoing representations in order to claim the exemption from registration provided by Rule 144A.

Date:
			NOTICE: To be executed by an executive officer

A-18

[TO BE ATTACHED TO GLOBAL NOTES]

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL NOTE

The initial principal amount of this Global Note is $ . The following increases or decreases in this Global Note have been made:

Date of Exchange	Amount of decrease in Principal Amount of this Global Note	Amount of increase in Principal Amount of this Global Note	Principal amount of this Global Note following such decrease or increase	Signature of authorized signatory of Trustee or Notes Custodian

A-19

OPTION OF HOLDER TO ELECT PURCHASE

If you want to elect to have this Note purchased by the Issuers pursuant to Section 4.06 (Asset Sale) or 4.08 (Change of Control) of the Indenture, check the box:

Asset Saleo Change of Control o

If you want to elect to have only part of this Note purchased by the Issuers pursuant to Section 4.06 (Asset Sale) or 4.08 (Change of Control) of the Indenture, state the amount ($2,000 or any integral multiple of $1,000 in excess thereof):

Date:			Your Signature:
				(Sign exactly as your name appears on the other side of this Note)

Signature Guarantee:
	Signature must be guaranteed by a participant in a recognized signature guaranty medallion program or other signature guarantor program reasonably acceptable to the Trustee

A-20

EXHIBIT B

[Intentionally Omitted]

B-1

EXHIBIT C

[FORM OF TRANSFEREE LETTER OF REPRESENTATION]

TRANSFEREE LETTER OF REPRESENTATION

[ATHLON HOLDINGS LP]

[ATHLON FINANCE CORP.]

c/o Wells Fargo Bank, National Association

Corporate Client Services
[ · ]
[ · ], [ · ] [ · ]

Ladies and Gentlemen:

This certificate is delivered to request a transfer of $[ ] principal amount of the 6.000% Senior Notes due 2022 (the “Notes”) of [ATHLON HOLDINGS LP] and [ATHLON FINANCE CORP.] (collectively with their successors and assigns, the “Issuers”).

Upon transfer, the Notes would be registered in the name of the new beneficial owner as follows:

Name:

Address:

Taxpayer ID Number:

The undersigned represents and warrants to you that:

1. We are an institutional “accredited investor” (as defined in Rule 501(a)(1), (2), (3) or (7) under the Securities Act of 1933, as amended (the “Securities Act”)), purchasing for our own account or for the account of such an institutional “accredited investor” at least $100,000 principal amount of the Notes, and we are acquiring the Notes not with a view to, or for offer or sale in connection with, any distribution in violation of the Securities Act. We have such knowledge and experience in financial and business matters as to be capable of evaluating the merits and risks of our investment in the Notes, and we invest in or purchase securities similar to the Notes in the normal course of our business. We, and any accounts for which we are acting, are each able to bear the economic risk of our or its investment.

2. We understand that the Notes have not been registered under the Securities Act and, unless so registered, may not be sold except as permitted in the following sentence. We agree on our own behalf and on behalf of any investor account for which we are purchasing Notes to offer, sell or otherwise transfer such Notes prior to the date that is two years after the later of the date of original issue and the last date on which either of the Issuers or any affiliate of such Issuers was the owner of such Notes (or any predecessor thereto) (the “Resale Restriction Termination Date”) only (a) in the United States to a person whom we reasonably believe is a qualified institutional buyer (as defined in rule 144A under the Securities Act) in a

C-1

transaction meeting the requirements of Rule 144A, (b) outside the United States in an offshore transaction in accordance with Rule 904 of Regulation S under the Securities Act, (c) pursuant to an exemption from registration under the Securities Act provided by Rule 144 thereunder (if applicable) or (d) pursuant to an effective registration statement under the Securities Act, in each of cases (a) through (d) in accordance with any applicable securities laws of any state of the United States. In addition, we will, and each subsequent holder is required to, notify any purchaser of the Note evidenced hereby of the resale restrictions set forth above. The foregoing restrictions on resale will not apply subsequent to the Resale Restriction Termination Date. If any resale or other transfer of the Notes is proposed to be made to an institutional “accredited investor” prior to the Resale Restriction Termination Date, the transferor shall deliver a letter from the transferee substantially in the form of this letter to the Issuers and the Trustee, which shall provide, among other things, that the transferee is an institutional “accredited investor” within the meaning of Rule 501(a)(1), (2), (3) or (7) under the Securities Act and that it is acquiring such Notes for investment purposes and not for distribution in violation of the Securities Act. Each purchaser acknowledges that the Issuers and the Trustee reserve the right prior to the offer, sale or other transfer prior to the Resale Restriction Termination Date of the Notes pursuant to clause 1(b), 1(c) or 1(d) above to require the delivery of an opinion of counsel, certifications or other information satisfactory to the Issuers and the Trustee.

Dated:

			TRANSFEREE: ,


			By:

C-2

EXHIBIT D

[FORM OF SUPPLEMENTAL INDENTURE]

SUPPLEMENTAL INDENTURE

SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”) dated as of [DATE], among [SUBSIDIARY GUARANTOR] (the “New Subsidiary Guarantor”), a subsidiary of ATHLON HOLDINGS LP (or its successor), a Delaware limited partnership (“Holdings”), and XXXXX FARGO BANK, NATIONAL ASSOCIATION, a national banking association, as trustee under the indenture referred to below (the “Trustee”).

W I T N E S S E T H :

WHEREAS Holdings, Athlon Finance Corp. (or its successor), a Delaware corporation (the “Co-Issuer” and, together with Holdings, the “Issuers”), certain Subsidiary Guarantors and the Trustee have heretofore executed an indenture, dated as of May 1, 2014 (as amended, supplemented or otherwise modified, the “Indenture”), providing for the issuance of the Issuers’ 6.000% Senior Notes due 2022 ( the “Notes”), initially in the aggregate principal amount of $650,000,000;

WHEREAS Sections 4.11 and 12.07 of the Indenture provide that under certain circumstances Holdings is required to cause the New Subsidiary Guarantor to execute and deliver to the Trustee a supplemental indenture pursuant to which the New Subsidiary Guarantor shall unconditionally guarantee all the Issuers’ Obligations under the Notes and the Indenture pursuant to a Subsidiary Guarantee on the terms and conditions set forth herein; and

WHEREAS pursuant to Section 9.01 of the Indenture, the Trustee and the Issuers are authorized to execute and deliver this Supplemental Indenture;

NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the New Subsidiary Guarantor, the Issuers and the Trustee mutually covenant and agree for the equal and ratable benefit of the holders of the Notes as follows:

1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined, except that the term “holders” in this Supplemental Indenture shall refer to the term “holders” as defined in the Indenture and the Trustee acting on behalf of and for the benefit of such holders. The words “herein,” “hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular Section hereof.

2. Agreement to Guarantee. The New Subsidiary Guarantor hereby agrees, jointly and severally with all existing Subsidiary Guarantors (if any), to unconditionally guarantee the Issuers’ Obligations under the Notes and the Indenture on the terms and subject to the conditions set forth in Article XII of the Indenture and to be bound by all other applicable

D-1

provisions of the Indenture and the Notes and to perform all of the obligations and agreements of a Subsidiary Guarantor under the Indenture.

3. Notices. All notices or other communications to the New Subsidiary Guarantor shall be given as provided in Section 14.02 of the Indenture.

4. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby.

5. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

6. Trustee Makes No Representation. The Trustee makes no representation as to the validity or sufficiency of this Supplemental Indenture.

7. Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement.

8. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction thereof.

[Remainder of page intentionally left blank.]

D-2

IN WITNESS WHEREOF, the parties have caused this Indenture to be duly executed as of the date first written above.

	[ATHLON HOLDINGS LP]


	By:
		Name:
		Title:


	[ATHLON FINANCE CORP.]


	By:
		Name:
		Title:


	[SUBSIDIARY GUARANTOR] , as a Guarantor


	By:
		Name: [ ]
		Title: [ ]


	XXXXX FARGO BANK, NATIONAL ASSOCIATION, not in its individual capacity, but solely as Trustee


	By:
		Name: [ ]
		Title: [ ]

D-3

EXHIBIT E

[FORM OF NOTATION OF GUARANTEE]

For value received, each Guarantor (which term includes any successor Person under the Indenture) has, jointly and severally, unconditionally guaranteed, to the extent set forth in and subject to the provisions in the Indenture dated as of May 1, 2014 (the “Indenture”) among Athlon Holdings LP, a Delaware limited partnership (together with its successors and assigns, “Holdings”), Athlon Finance Corp., a Delaware corporation (together with its successors and assigns, the “Co-Issuer” and, together with Holdings, the “Issuers”), the Guarantors party thereto from time to time (as defined below) and Xxxxx Fargo Bank, National Association, as trustee (the “Trustee”), (a) the due and punctual payment of the principal of, premium on, if any, interest, if any, on, the Notes, whether at maturity, by acceleration, redemption or otherwise, the due and punctual payment of interest on overdue principal of, premium on, if any, interest, if any, on, the Notes, if any, if lawful, and the due and punctual performance of all other obligations of the Issuers to the holders or the Trustee all in accordance with the terms of the Indenture and (b) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that the same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise. The obligations of the Guarantors to the holders of Notes and to the Trustee pursuant to the Guarantee and the Indenture are expressly set forth in Article 12 of the Indenture and reference is hereby made to the Indenture for the precise terms of the Guarantee. Each holder of a Note, by accepting the same, (a) agrees to and shall be bound by such provisions, (b) authorizes and directs the Trustee, on behalf of such holder, to take such action as may be necessary or appropriate to effectuate the subordination as provided in the Indenture and (c) appoints the Trustee attorney-in-fact of such holder for such purpose; provided, however, that the Indebtedness evidenced by this Guarantee shall cease to be so subordinated and subject in right of payment upon any defeasance of this Note in accordance with the provisions of the Indenture.

Capitalized terms used but not defined herein have the meanings given to them in the Indenture.

	[NAME OF GUARANTOR(S)]


	By:
		Name:
		Title:

E-1

Document Metadata

Table of Contents

ATHLON HOLDINGS LP and ATHLON FINANCE CORP. as Issuers and the Guarantors party hereto from time to time 6.000% Senior Notes due 2022

Document Metadata