ALLIS-CHALMERS CORPORATION AND CONSOLIDATED SUBSIDIARIES -------------------------------------------------------- EXHIBIT 21.1. ------------- SUBSIDIARIES ------------Allis Chalmers Corp • April 1st, 2002 • Misc industrial & commercial machinery & equipment
EXECUTION CREDIT AGREEMENTCredit Agreement • July 15th, 2005 • Allis Chalmers Energy Inc. • Misc industrial & commercial machinery & equipment • Texas
R E C I T A L SStock Purchase Agreement • April 5th, 2005 • Allis Chalmers Energy Inc. • Misc industrial & commercial machinery & equipment • Louisiana
EXHIBIT 7.1Stock Purchase Agreement • January 4th, 2005 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Delaware
EXHIBIT 7.3Stockholders Agreement • January 4th, 2005 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Delaware
EXHIBIT 10.62 AMENDED AND RESTATED CREDIT AND SECURITY AGREEMENT BY AND BETWEEN ALLIS-CHALMERS CORPORATION STRATA DIRECTIONAL TECHNOLOGY, INC. JENS' OIL FIELD SERVICE, INC., AND SAFCO-OIL FIELD PRODUCTS, INC.Security Agreement • December 13th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Minnesota
AMONGShareholders' Agreement • April 1st, 2002 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
WARRANTAllis Chalmers Corp • August 16th, 2004 • Misc industrial & commercial machinery & equipment • Delaware
RECITALSStock Purchase Agreement • February 21st, 2002 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
Exhibit 99.2 TERMINATION AGREEMENT TERMINATION AGREEMENT (this "Agreement"), dated as of May 9, 2001, terminating the Lock-Up Agreement, dated as of March 31, 1999 (the "Lock-Up Agreement"), by and among Allis-Chalmers Corporation, a Delaware...Termination Agreement • May 15th, 2001 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • New York
EXHIBIT 10.43 REGISTRATION RIGHTS AGREEMENTRegistration Rights Agreement • April 29th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Delaware
EXHIBIT 7.3 FIRST AMENDMENT TO STOCKHOLDERS AGREEMENT This First Amendment to Stockholders Agreement ("First Amendment") dated effective as of July 29, 2005 is made by and among Energy Spectrum Partners, LP ("Energy Spectrum"), the Investors Group (as...Stockholders Agreement • August 26th, 2005 • Allis Chalmers Energy Inc. • Misc industrial & commercial machinery & equipment
BY AND AMONGStock Purchase Agreement • August 19th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Delaware
EXHIBIT 10.45 FOURTH AMENDMENT TO AMENDED AND RESTATED CREDIT AND SECURITY AGREEMENT This Amendment, dated as of January 30, 2004, is made by and between Strata Directional Technology, Inc., a Texas corporation (the "Borrower"), and Wells Fargo...Credit and Security Agreement • August 16th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment
ARTICLE I DEFINITIONS -----------Shareholder Agreement • April 1st, 2002 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
WARRANTAllis Chalmers Corp • September 10th, 2004 • Misc industrial & commercial machinery & equipment • Delaware
RECITALS:Credit Agreement • April 15th, 2003 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment
RECITALS --------Credit Agreement • April 15th, 2003 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
WARRANTAllis Chalmers Corp • February 20th, 2002 • Misc industrial & commercial machinery & equipment • Delaware
RECITALSForbearance Agreement • April 15th, 2003 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Minnesota
R E C I T A L SNon-Competition Agreement • December 16th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
R E C I T A L SEmployment Agreement • February 21st, 2002 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
EXHIBIT 7.2Stock Purchase Agreement • January 4th, 2005 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Delaware
Exhibit 10.2 LOCK-UP AGREEMENT THIS AGREEMENT, dated as of March 31, 1999, by and among Allis-Chalmers Corporation, a Delaware corporation (the "Company"), the Pension Benefit Guaranty Corporation, a United States government corporation acting in its...Lock-Up Agreement • August 5th, 1999 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Delaware
AGREEMENTStock Purchase Agreement • March 21st, 2002 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
R E C I T A L SPurchase Agreement • July 15th, 2005 • Allis Chalmers Energy Inc. • Misc industrial & commercial machinery & equipment • Texas
EXHIBIT 10.60 EXECUTIVE EMPLOYMENT AGREEMENT This Executive Employment Agreement dated as of October 11, 2004, is between Allis-Chalmers Corporation and Theodore F. Pound III. Certain capitalized terms used herein are defined in Section 1 below. R E C...Executive Employment Agreement • October 15th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
ADDENDUM TO STOCK PURCHASE AGREEMENT This ADDENDUM TO STOCK PURCHASE AGREEMENT (this "Agreement"), dated September 24, 2004, is made by and among Allis- Chalmers Corporation, a Delaware corporation (the "Company"), and the signatories hereto (the...Stock Purchase Agreement • September 30th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment
EXHIBIT 10.61 ASSET PURCHASE AGREEMENTAsset Purchase Agreement • November 16th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
R E C I T A L SEmployment Agreement • April 1st, 2002 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
EXHIBIT 10.31 CREDIT AGREEMENT Dated as of February 6, 2001Warrant Purchase Agreement • April 15th, 2003 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
Exhibit 10.3 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this "Agreement") is entered into as of the 31st day of March, 1999, between ALLIS-CHALMERS CORPORATION, a Delaware corporation (the "Company"), and the PENSION BENEFIT...Registration Rights Agreement • August 5th, 1999 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Delaware
RECITALSStock Purchase Agreement • April 1st, 2002 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment • Texas
RECITALS:Credit Agreement • August 16th, 2004 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment
RECITALS:Credit Agreement • April 15th, 2003 • Allis Chalmers Corp • Misc industrial & commercial machinery & equipment
