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WEST GAS INTERSTATE INC
See Public Service Company of Colorado



+WESTGAS INTERSTATE INC
Denver, CO
303-454-0281



AMERON INTERNATIONAL CORPORATION
Acquired by National Oilwell Varco Inc for approximately $722 million in October 2011.



CHESAPEAKE MIDSTREAM PARTNERS LP
Changed name to Access Midstream Partners LP in July 2012.



TYCO THERMAL CONTROLS LLC
Merged with Pentair Inc in October 2012, see Pentair Thermal Management.



TYCO VALVES & CONTROLS INC
Acquired by Pentair Ltd in September 2012, see Pentair Valves & Controls



ICI AMERICAS INC
Acquired by Akzo Nobel NV in January 2008. Most assets were integrated into Akzo Nobel, and Adhesives & Electronic Materials businesses sold to Henkel in April 2008.



WASHINGTON GROUP INTERNATIONAL INC
Acquired by URS Corp in November 2007; currently operates as the Energy & Construction Division.



CONOCOPHILLIPS GAS & POWER MIDWEST
Acquired by EDF Trading in January 2013; see EDF Energy Services.



LIBERTY PRESSURE PUMPING LP
Acquired by Trican Well Service Ltd in 2007; see Trican Well Service LP.



LONESTAR MIDSTREAM LP
Assets acquired by Penn Virginia Resource Partners LP in July 2008; see PVR Midstream.



JP ENERGY DEVELOPMENT
Midstream energy affiliate of JP Energy Partners LP.



WACHOVIA CORPORATION
Acquired by Wells Fargo & Company in 2008.



WACHOVIA SECURITIES LLC
Wachovia Corporation was cquired by Wells Fargo & Company in 2008. Wachovia Securities is now Wells Fargo Advisors LLC.



A & L UNDERGROUND INC
Cimarron Infrastructure Group, LLC assumed ownership of A & L Underground Inc. in February 2012. Now a portfolio company under the name of Cimarron Underground, Inc.



TECHINT TECHNOLOGIES
Name changed to Tenova Group in 2006.



DRESSER INC
Acquired by General Electric Co in February 2011 for $3 billion. Dresser's businesses will be integrated into GE's Energy Services and Power & Water business units.



DRESSER MASONEILAN
Acquired, along with Dresser Inc, by General Electric Co in February 2011 for $3 billion. Dresser's businesses integrated into GE's Energy Services and Power & Water business units.



DYNACON INC
Acquired by Forum Energy Technologies Inc in December 2012



REVAK COMPANIES, THE
Acquired by Hoerbiger Holding AG in 2008.



BEAR TRACKER ENERGY LLC
Acquired by Summit Midstream Partners LLC in February 2013.



LOUIS DREYFUS HIGHBRIDGE ENERGY LLC - LDH ENERGY
Completed a change of ownership in January 2013, then rebranded as Castleton Commodities International LLC.



EVERGREEN HELICOPTERS INC
Acquired by Erickson Air-Crane Inc in March 2013.



MCJUNKIN RED MAN CORPORATION - MRC
Changed name to MRC Global Inc in January 2012.



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