Common use of Changes in Prices; Well Events Clause in Contracts

Changes in Prices; Well Events. PURCHASER ACKNOWLEDGES THAT IT SHALL ASSUME ALL RISK OF LOSS WITH RESPECT TO: (i) CHANGES IN COMMODITY OR PRODUCT PRICES AND ANY OTHER MARKET FACTORS OR CONDITIONS FROM AND AFTER THE EFFECTIVE TIME; (ii) PRODUCTION DECLINES OR ANY ADVERSE CHANGE (EXCEPT TO THE EXTENT PROVIDED IN SECTIONS 10.11 AND 6.7 WITH RESPECT TO AN ADVERSE CHANGE IN THE NATURE OF A CASUALTY LOSS) IN THE PRODUCTION CHARACTERISTICS OR DOWNHOLE CONDITION OF AN ACQUIRED WELL, INCLUDING ANY ACQUIRED WELL WATERING OUT, OR EXPERIENCING A COLLAPSE IN THE CASING OR SAND INFILTRATION, FROM AND AFTER THE EXECUTION DATE; AND (iii) DEPRECIATION OF ANY ACQUIRED ASSETS THAT CONSTITUTE PERSONAL PROPERTY THROUGH ORDINARY WEAR AND TEAR. [Signature Page Follows] 69 The Parties have executed this Agreement as of the Execution Date. PURCHASER: UNIT PETROLEUM COMPANY By: /s/ Xxxx X. Xxxxxx Name: Xxxx X. Xxxxxx Title: Senior Vice President GUARANTOR: UNIT CORPORATION By: /s/ Xxxx X. Xxxxxx Name: Xxxx X. Xxxxxx Title: Senior Vice President Signature Page to Purchase and Sale Agreement SELLER: NOBLE ENERGY, INC. By: /s/ Xxxxx X. Xxxxxx Name: Xxxxx X. Xxxxxx Title: Vice President Signature Page to Purchase and Sale Agreement

Changes in Prices; Well Events. PURCHASER ACKNOWLEDGES THAT IT SHALL ASSUME ALL RISK OF LOSS WITH RESPECT TO: (i) CHANGES IN COMMODITY OR PRODUCT PRICES AND ANY OTHER MARKET FACTORS OR CONDITIONS FROM AND AFTER THE EFFECTIVE TIME; (ii) PRODUCTION DECLINES OR ANY ADVERSE CHANGE (EXCEPT TO THE EXTENT PROVIDED IN SECTIONS 10.11 AND 6.7 WITH RESPECT TO AN ADVERSE CHANGE IN THE NATURE OF A CASUALTY LOSS) IN THE PRODUCTION CHARACTERISTICS OR DOWNHOLE CONDITION OF AN ACQUIRED WELL, INCLUDING ANY ACQUIRED WELL WATERING OUT, OR EXPERIENCING A COLLAPSE IN THE CASING OR SAND INFILTRATION, FROM AND AFTER THE EXECUTION DATE; AND (iii) DEPRECIATION OF ANY ACQUIRED ASSETS THAT CONSTITUTE PERSONAL PROPERTY THROUGH ORDINARY WEAR AND TEAR. [Signature Page Follows] 69 The Parties have executed this Agreement as of the Execution Date. PURCHASER: UNIT PETROLEUM COMPANY SRC ENERGY INC. By: /s/ Xxxx X. Xxxxxx Name: Xxxx X. Xxxxxx Title: Senior Vice President GUARANTOR: UNIT CORPORATION By: /s/ Xxxx X. Xxxxxx Name: Xxxx X. Xxxxxx Title: Senior Vice President Signature Page to Purchase and Sale Agreement SELLER: NOBLE ENERGY, INC. By: /s/ Xxxxx X. Xxxxxx Name: Xxxxx X. Xxxxxx Xxxxxxxxx Title: Vice VP — Business Development NOBLE ENERGY WYCO, LLC By: Name: Xxxxxxx X. Xxxxx Title: President Signature Page to Purchase and Sale AgreementPURCHASE AND SALE AGREEMENT Appendix A

Changes in Prices; Well Events. PURCHASER ACKNOWLEDGES THAT IT SHALL ASSUME ALL RISK OF LOSS WITH RESPECT TO: (i) CHANGES IN COMMODITY OR PRODUCT PRICES AND ANY OTHER MARKET FACTORS OR CONDITIONS FROM AND AFTER THE EFFECTIVE TIME; (ii) PRODUCTION DECLINES OR ANY ADVERSE CHANGE (EXCEPT TO THE EXTENT PROVIDED IN SECTIONS 10.11 AND 6.7 WITH RESPECT TO AN ADVERSE CHANGE IN THE NATURE OF A CASUALTY LOSS) IN THE PRODUCTION CHARACTERISTICS OR DOWNHOLE CONDITION OF AN ACQUIRED WELL, INCLUDING ANY ACQUIRED WELL WATERING OUT, OR EXPERIENCING A COLLAPSE IN THE CASING OR SAND INFILTRATION, FROM AND AFTER THE EXECUTION DATE; AND (iii) DEPRECIATION OF ANY ACQUIRED ASSETS THAT CONSTITUTE PERSONAL PROPERTY THROUGH ORDINARY WEAR AND TEAR. [Signature Page Follows] 69 The Parties have executed this Agreement as of the Execution Date. PURCHASER: UNIT PETROLEUM COMPANY By: /s/ Xxxx X. Xxxxxx Name: Xxxx X. Xxxxxx Title: Senior Vice President GUARANTOR: UNIT CORPORATION By: /s/ Xxxx X. Xxxxxx Name: Xxxx X. Xxxxxx Title: Senior Vice President Signature Page to Purchase and Sale Agreement SELLER: NOBLE ENERGY, INC. By: /s/ Xxxxx X. Xxxxxx Name: Xxxxx X. Xxxxxx Title: Vice President Signature Page to Purchase and Sale AgreementAppendix A

Changes in Prices; Well Events. PURCHASER ACKNOWLEDGES THAT IT SHALL ASSUME ALL RISK OF LOSS WITH RESPECT TO: (i) CHANGES IN COMMODITY OR PRODUCT PRICES AND ANY OTHER MARKET FACTORS OR CONDITIONS FROM AND AFTER THE EFFECTIVE TIME; (ii) PRODUCTION DECLINES OR ANY ADVERSE CHANGE (EXCEPT TO THE EXTENT PROVIDED IN SECTIONS 10.11 10.10 AND 6.7 WITH RESPECT TO AN ADVERSE CHANGE IN THE NATURE OF A CASUALTY LOSS) IN THE PRODUCTION CHARACTERISTICS OR DOWNHOLE CONDITION OF AN ACQUIRED WELL, INCLUDING ANY ACQUIRED WELL WATERING OUT, OR EXPERIENCING A COLLAPSE IN THE CASING OR SAND INFILTRATION, INFILTRATION FROM AND AFTER THE EXECUTION DATEEFFECTIVE TIME; AND (iii) DEPRECIATION OF ANY ACQUIRED ASSETS THAT CONSTITUTE PERSONAL PROPERTY THROUGH ORDINARY WEAR AND TEAR. [Signature Page Follows] 69 The Parties have executed this Agreement as of the Execution Date. PURCHASER: UNIT PETROLEUM NEWFIELD PRODUCTION COMPANY By: /s/ W. Xxxx X. Xxxxxx Name: Xxxxxxxxxxx W. Xxxx X. Xxxxxx Title: Senior Xxxxxxxxxxx Vice President GUARANTOR: UNIT CORPORATION By: /s/ Xxxx X. Xxxxxx Name: Xxxx X. Xxxxxx Title: Senior Vice President Signature Page to Purchase and Sale Agreement — Land SELLER: NOBLE ENERGYHARVEST (US) HOLDINGS, INC. By: /s/ Xxxxx X. Xxxxxx Name: Head Xxxxx X. Xxxxxx Title: Head Vice President Signature Page to Purchase and Sale AgreementSIGNATURE PAGE TO PURCHASE AND SALE AGREEMENT Appendix A