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FARRAR OIL COMPANY
Assets acquired by Continental Resources of Illinois Inc in June 2001.



NUFLO MEASUREMENT SYSTEMS
Acquired by Cameron in May 2005 and became Cameron's Measurement Systems division in January 2007.



COOPER CAMERON CORPORATION
Cooper Cameron shareholders approve change of company's name to Cameron International Corporation in May 2006.



GENERAL VALVE COMPANY
See Cameron Valves & Measurement Systems



GROVE VALVE & REGULATOR COMPANY
Now a brand of Cameron Valves & Measurement Systems.



NICKLES INDUSTRIAL MANUFACTURING
Acquired by Cooper Cameron Corp (now Cameron International Corp) in May 2001, see Compressor Specialties Inc (CSI).



CRC-KEY INC
Certain assets acquired by Key & Associates Inc in 2001; see Weighting Systems listings under CRC-Evans Pipeline International Inc for continued CRC-Evans weighting operations.



HANOVER COMPRESSOR COMPANY
Merged with Universal Compression Inc to form Exterran in August 2007.



UNIVERSAL COMPRESSION INC
Merged with Hanover Compression Co to form Exterran in August 2007.



RED MAN PIPE AND SUPPLY COMPANY
Merged with McJunkin Corporation in November 2007 to form McJunkin Red Man Corporation.



MCJUNKIN CORPORATION
Merged with Red Man Pipe And Supply Company in November 2007 to form McJunkin Red Man Corporation.



GLOBE WELL SERVICE INC
Acquired by Basic Energy Services Inc. in May 2006.



COMPRESSCO FIELD SERVICES INC
Acquired by Tetra Technologies on July 15, 2004 and became Compressco Inc



CUDD PRESSURE CONTROL INC
Changed name to Cudd Energy Services in 2006.



KMC OILTOOLS INC
Changed name to Scomi Oiltools Inc. in February 2007.



ERLANGER CORPORATION
Name changed to IPSCO Tubulars Oklahoma Corporation in December 2006.



LAYNE INC
Merged with Christensen Boyles Corporation in 1996 to form Layne Christensen Company.



FACET INTERNATIONAL INC
A division of Clarcor Company; aquired Perry Equipment Comany in December 2007 to become Peco Facet



IPSCO INC
Svenskt Stal AB (SSAB) divested the IPSCO tubular businesses and related operations to Evraz Group SA and OAO TMK IN June 2008, see TMK IPSCO Inc in the US.



FISHING TOOLS INC
Acquired by Ponder Industries Inc. in January 1998.



APEX TOOLS
Acquired by Ponder Industries Inc. in November 1995.



TUBULAR RENTAL INC
Acquired by Ponder Industries Inc. in early 1997.



ATS / EXPRESS LLC
November 30, 2004 name changed to Express Integrated Technologies



FALCON WIRELINE LLC
Acquired by Gray Wireline Service Inc in February 2007.



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