Click on a "+" below to see listing details.ERLANGER CORPORATION
Name changed to IPSCO Tubulars Oklahoma Corporation in December 2006.
NISOURCE ENERGY VENTURES
Wholly owned subsidiary of NiSource Inc that oversees the management of NiSource Midstream Services, Energy Interchange, Millennium Pipeline and Hardy Storage.
WIND HYDROGEN LIMITED
Changed name to WHL Energy Limited in June 2008.
KINDER MORGAN PRODUCTION COMPANY LLC
Operating subsidiary of Kinder Morgan Energy Partners LP.
MARATHON OIL CORPORATION
Operating subsidiary of Marathon Oil Corp.
COG OPERATING LLC
Operating subsidiary of Concho Resources Inc.
SANDRIDGE EXPLORATION AND PRODUCTION LLC
Operating subsidiary of SandRidge Energy Inc.
OMNI OIL & GAS INC
Assets acquired by Bayside Corp in May 2009.
BAYSIDE PETROLEUM COMPANY INC
Operating subsidiary of Bayside Corp.
OK ARENA OPERATING COMPANY
Operating subsidiary of Arena Resources Inc, who merged with SandRidge Energy Inc in July 2010.
BURLINGTON RESOURCES OIL & GAS LP
Parent Burlington Resources Inc acquired by ConocoPhillips Co in March 2006; now operating subsidiary of ConocoPhillips in Colorado and Texas.
BROAD OAK ENERGY INC
Permian Basin and Granite Wash Play assets acquired by Laredo Petroleum Inc in July 2011.
STERLING ENERGY INC
Acquired by Atinum Partners Company Ltd in December 2009.
ENLINK MIDSTREAM LLC
General Partner holding an 8% interest in master limited partnership EnLink Midstream Partners LP; traded under ENLC on the NYSE.
CROSSTEX ENERGY LP / CROSSTEX ENERGY INC
Former assets merged with Devon Energy's US midstream assets to master limited partnership EnLink Midstream Partners LP and general partner EnLink Midstream LLC.
US BUREAU OF MINES
Congress voted in 1995 to close the Bureau of Mines and to transfer certain functions to other federal agencies; helium operations transferred to the Bureau of Land Management.
ANIMAS ENERGY LLC
Red Willow Production Co subsidiary that owns coal-bed methane wells on or near the Southern Ute reservation; former assets of Kukui Inc.
RENEGADE PETROLEUM LIMITED
Merged with Spartan Energy Corporation in March 2014.
OSAGE ENERGY CORPORATION
Changed name to Osage Exploration and Development Inc in July 2007.
MONTEREY EXPLORATION LIMITED
Merged with Pengrowth Energy Trust in September 2010.
PILOT ENERGY LIMITED
Acquired by Crescent Point Energy Trust in January 2008.
ISLAND OIL AND GAS PLC
Acquired by San Leon Energy plc in February 2010.
CANYON CREEK RESOURCES LLC
See Canyon Creek Energy Partners LLC.
GERRITY OIL LLC
Acquired by HKN Inc in July 2012.
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