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101 Energy Corporation | Same (Subsid: Crawley Petroleum Corporation) |
1400 Corp. | Conquest Exploration Company |
201 Corporation | Centurion Corporation |
3300 Corp. | Conquest Exploration Company |
3DX Technologies Inc. (Houston) | Esenjay Exploration Inc. |
3Tec Energy Corp. | Same (Houston) |
906 Olive Corporation | Same (Affil: Meridian Oil, Inc.) |
A | |
A & J Oil Company | Thomas, Nelson R. |
A & K Petroleum Company | Kerr-McGee Corporation |
A. F. D. Capital Group Inc. | Same |
A-1 Bit & Tool | Same (Subsid: Homco International, Inc. |
A-2 Acquisitions Partnerships (1996 & 1997) | Dissolved into (A-2 Resources Corp.) |
A-2 Development and Production Company | Same (Subsid: A-2 Resources Corp.) |
A-2 Energy and Exploration Partners, LLC | Same (Subsid: A-2 Resources Corp.) |
A-2 Exploration Corp. | Same (Subsid: A-2 Resources Corp.) |
AA Development Corporation | AA Energy Corporation |
AA Energy Corporation | Same |
AA Minerals Corporation | Supron Energy Corporation |
Aaron Oil Corporation | Altmark Energy Inc. |
Abaca Oil Company | Mapco Production Company |
Abacan Resource Corp. | Same |
Abbeville Operating Corp. | Bintliff, D.C. |
Aberdeen American Petroleum Company, Inc. | Same |
Aberdeen Oil & Gas Corporation | Aberdeen Petroleum Corporation |
Aberdeen Petroleum Corporation | Adobe Royalty, Inc. |
Abney Oil Co. | P & O Falco, Inc. |
Abraxus Petroleum Corporation | Same |
Acacia Natural Gas Corporation | Same (Subsid: DevonEnergy Corp) |
Acadi Energy Company | Oxoco, Inc. |
Acadian Gas GP | Tejas Gas |
Access Energy Corp. | Enron Gas Service Corp. |
Acquisition – VI Corporation | Louis Dreyfus Natural Gas Corp. |
Ada Belle Oil Company | Penn-Virginia Resources Corp. |
ADA Resources Corp. | Adams Resources & Energy, Inc. |
Adams Resources & Energy, Inc. | Same |
Addax Petroleum Corporation | Same |
Addington Brothers Mining Co. | Ashland Oil, Inc. |
Adena Exploration | Dissolved (See notes in back) |
Adobe Acquisition Corp. | High Plains Oil Corporation |
Adobe Oil and Gas Corp. | Adobe Royalty, Inc. |
Adobe Resources Corporation | Santa Fe Energy Resources, Inc. |
Adobe Royalty, Inc. | Adobe Resources Corporation |
AEC Gas Company | Encana Corp |
AEC Gulf of Mexico Inc. | Encana Corp |
AEC Oil and Gas (USA) Inc. | Encana Corp |
AETNA Oil Co. | Ashland Oil & Refining Company |
Agate Petroleum Inc. (N. Dakota Properties) | Nance Petroleum Corporation |
Agate Petroleum, Inc. | St. Mary Land & Exploration Company (all US properties except N. Dakota) |
AGM Corp. | Diamond Shamrock, Inc. |
Aikman Brothers, Inc. | Same |
Aikman Oil Corp. | Aikman Brothers, Inc. |
Akin, Matthew | Same |
Aladdin Oil Corp. | Same (Los Angeles) |
Alagasco Energy Company, Inc. | Taurus Exploration, Inc. |
Alamo Inc. | Columbia Gas System, Inc. |
Alamo Oil & Gas LTD-I | Same (Affil: Torch Energy Corporation) |
Alamo Oil & Gas LTD-II | Same (Affil: Torch Energy Corporation) |
Alamo Petroleum, Inc. | Equitable Petroleum Corp. |
Alanman Energy, Inc. | Same |
Alanmar Oil Company | Alanmar Energy, Inc. |
Alaska Interstate Company | Union Texas Petroleum Corp. |
Albantu Oil & Gas Corporation | Socony Mobil Oil Company, Inc. |
Alberta Energy Company, Ltd. | EnCana Oil & Gas, Ltd. |
ALCO Oil & Gas Corp. | Ladd Petroleum Corp. |
ALCOA, Inc. | Same |
Alder Oil Company | ESCO, Inc. |
ALECO, Inc. | Same |
Alene Oil Company | Tenkay Resources, Inc. |
Alexander Energy Corporation | National Energy Group, Inc. (Dallas) |
Alf Corporation (USA) | Same |
Alf Energy Companies | Alf Corporation (USA) |
Alf Oil Company | Alf Energy Companies |
Alfonso Production Company | Cash Reserve Investments, Ltd. |
Allegro Petroleum, Inc. | North Star Resources, Ltd. |
Allen Oil Company | Ladd Petroleum Corp. |
Allen Oil Tools, Inc. | Kencope Energy Co. |
Alliance Drilling Company | Same |
Alliance Exploration Corporation | South Hampton Mineral Corp. |
Alliance Operating, Inc. | Gulfstream Resources, Inc. |
Alliance Resources (USA) Inc. | Same (Subsid: Alliance Resources PLC) |
Allied Ashland Oil Company | Ashland Oil Company |
Allied Chemical Corporation | Union Texas Natural Gas Corp. |
Allied Consolidated Energy Inc. | Allied Oil & Gas Corp. |
Allied Materials Corp. | Entex Petroleum, Inc. |
Allied Oil & Gas Corp. | Same (Houston) |
Allis-Chalmers Energy, Inc. | Same (Houston) |
Alminex Ltd. | Mobil Oil Corporation |
ALN Resources Corp. | American Natural Energy Corp. |
Alpha – Omega, Inc. | Omega Corporation |
Alpha Energy Corp. | Liquidated |
Alta Energy Corp. | Devon Energy Corp. |
Altair Oil & Gas Company | Mesa Petroleum Company |
Alterio Resources Ltd. | Paragon Petroleum Corp. |
Altex Energy Corp. | Altex Industries |
Altex Industries | Same |
Altmark Energy Inc. | Same |
Altura Energy, Ltd. | Same |
Aluminum Company of America | ALCOA, Inc. |
Amacan Resources Corp. | Spire International Corp. |
Amalgamated Bonanza Petroleum Co. | Chevron USA, Inc. |
Amarex, Inc. | Temex Energy, Inc. |
Amarillo Minerals, Inc. | Pioneer Nuclear, Inc. |
Amarillo Oil Company | Pioneer Production Corp. |
Amax Oil & Gas, Inc. | Universal Resources Corp. |
Amax Petroleum Corp. | CRA, Inc. |
Amax, Inc. | Cyprus Minerals Company |
Ambassador Petroleum Corp. | Anadarko Production Company |
Amber Oil Company | National Energy Group, Inc. (Dallas) |
Amber Resources Co. | Delta Petroleum Corp. |
Ambrit Energy Corporation | Castle Energy Corp. |
AMCAN Oil Corp. | Aminoil USA, Inc. |
AmCog Acquisition Corp. | Same (Subsid: American Exploration Company) |
Amerac Energy Corporation (Houston) | Southern Mineral Corp. |
Amerada Corp. | Amerada Petroleum Corp. |
Amerada Hess Corporation (New York City) | Same |
Amerada Petroleum Company | Amerada Hess Corporation |
American Corporate Resources, Inc. | Same (Affil: Meridian Oil Inc.) |
American Eagle Petroleums Ltd. | CS Resources Ltd. |
American Energy Exploration Company | Same |
American Exploration Company | Louis Dreyfus Natural Gas Corp. |
American Exploration Drilling | Pinto, Joseph |
American Exploration Gas Systems Corp. | Louis Dreyfus Natural Gas Corp. |
American Exploration Production Company | Same (Subsid: Louis Dreyfus Natural Gas Corp.) |
American Independent Oil Company | Aminoil USA, Inc. |
American International Petroleum Corp. | Aztec Energy Corp. |
American Liberty Oil Company | American Petrofina Co. of Tex. |
American Marracaibo Oil Company | Felmont Oil Corporation |
American National Petroleum Co. | Patrick Petroleum Co. |
American Natural Energy Corp. | Alexander Energy Corporation |
American Natural Gas Production Company | ANR Production Company |
American Natural Resources Corp. | ANR Production Company |
American Oil & Gas Inc. | Same (JV: North Finn LLC & Tower Columbia Corporation) |
American Oil Company | AMOCO Oil Company |
American Oil Company of Texas | Mobil Oil Corporation |
American Pacific International Corp. | Petro-Lewis Corp. |
American Petrofina Co. of Texas | Subsid: American Petrofina, Inc. |
American Petrofina, Inc. | Fina Oil and Chemical Company |
American Promax Inc. | Same (Vancouver, BC) |
American Public Energy Company | Amquest Corp. |
American Quasar Petro. Co. of N.M. | Wolverine Exploration Company |
American Republic Oil Company | Sinclair Oil Company |
American Reserve Corp. | Same (Subsid: Louis Dreyfus Natural Gas Corp.) |
American Resources of Delaware, Inc. | Same |
American Royalty Petroleum Company | Crescent Oil and Gas Corporation |
American Trading & Production Corp. | ATAPCO |
Americex, Inc. | Same |
Ameriplor Corp. | Same (Subsid: American Exploration Company) |
Ameroil Energy Corp. | ALN Resources Corp. |
Amerox Acquisition Corp. | Same (Subsid: American Exploration Company) |
Amex Oil Company | Same (Subsid: American Exploration Company) |
AMINI Oil Company | Teal Exploration, Ltd. |
Aminoil USA, Inc. | Phillips Petroleum Company |
Aminoil, Inc. | Phillips Oil Company |
Amistad Land & Cattle Company, Inc. | Spike Box Land & Cattle Company, Inc. |
Amkan Acquisition Corp. | Same (Subsid: American Exploration Company) |
AMOCO Oil Company | AMOCO Production Company |
AMOCO Production Company | BP Amoco, Inc. |
AMPOL Exploration Company | AMPOLEX (USA) Inc. |
AMPOLEX (USA) Inc. (Denver) | Same |
Amquest Corp. | Same |
AMR Energy Corp. | Toga Petroleum Company |
AMVEST Corp. | Same (Charlottesville, VA) |
AMVEST Osage Inc. | Constellation Energy Partners LLC |
Anaconda Gold and Silver Company | Anaconda Mining Company |
Anaconda Mining Company | Atlantic Richfield Company |
Anadarko Land and Exploration Company | ALECO, Inc. |
Anadarko Petroleum Corporation | Same |
Anadarko Production Company | Anadarko Petroleum Corporation |
Anchor Bay Corp. | Same |
Anderman/Smith Operating Co. | Same |
Andermen Oils Wyoming, Inc. | Heritage Energy Resources, Inc. |
Anderson, Carl B. | Same (also See Anson Company) |
Anderson, Harold J., Inc. | Same (New Orleans) |
Anderson-Prichard Oil Company | APCO, Inc. |
Andover Oil Company | Santa Fe Andover Oil Company |
Andrews Production Company | Same |
Anflo, Clar, Welfeit | Indian Royalty Company |
Angeles Corp. | Saxon Oil Development Partners |
Anglo Energy, Inc. | Nabors Industries, Inc. |
Anglo Energy, Ltd. | Rosewood Resources, Inc. |
ANM Services Corp. | Same (Subsid: American Exploration Company) |
ANR | Same (Subsid: Coastal Oil and Gas Corporation) |
ANR Limited Inc. | ANR Production Company |
ANR Production Company | Same (Subsid: Coastal Oil and Gas Corporation) |
Anran Corporation | Same |
Anschutz Corporation (Denver) | Same |
Anschutz Dunwoody Drilling Co. Inc. | Anschutz Corporation |
Anschutz Gold Coast Corp. | Same (Subsid: Anschutz Corporation) |
Anschutz Investment Company | Same (Subsid: Anschutz Corporation) |
Anschutz Overseas Corp. | Same (Subsid: Anschutz Corporation) |
Anschutz Permain Corp. | Same (Subsid: Anschutz Corporation) |
Anschutz Western Corp. | Same (Subsid: Anschutz Corporation) |
Anschutz Wyoming Corp | Same (Subsid: Anschutz Corporation) |
Anson Company | Chesapeake Mid-Continent Corp. |
AnSon Corporation | Chesapeake Mid-Continent Corp. |
AnSon Gas Corporation | Same (Affil: Anson Company) |
AnSon Production Corporation | Chesapeake Merger II Corp. |
Antares Oil Corporation | Oxford Consolidated, Inc. |
Antelope Gas Products Company | Antelope Production Company |
Antelope Production Company | Same |
Antero Resources Corp. (Denver) | XTO Energy, Inc. |
Antlers Enterprises Inc. | Simba Energy Corp. |
Antonio Resources, Inc. | Petroro Corporation |
Anvil Petroleum Corp. | Same |
Apache Corporation (Houston) | Same |
Apache Exploration Corporation | Apexco, Inc. |
Apache Oil Corporation | Apache Corporation |
Apache Petroleum Co., LP | Key Production Company, Inc. |
Apache Petroleum Company | Apache Corporation |
Apache Petroleum Partnerships | Same (Affil: Apache Corporation) |
APC Operating Company | Same (Affil: Apache Corporation) |
APCO, Inc. | Allied Chemical Corporation |
APD Company | Same (Affil: Apache Corporation) |
Apex Oil Company Inc. | Same |
Apexco, Inc. | Natomas North America, Inc. |
APP Production Inc. | Same (Affil: Torch Energy Corporation) |
Appalachian Gas Sale Inc. | Eastern Energy Marketing Inc. |
APX Corporation | Same (Subsid: Anadarko Petroleum Corporation) |
APX Western Corporation | Anadarko Petroleum Corporation |
Aquataine | Elf Aquataine, Inc. |
Aquila Southwest Energy Corp. | Same (Subsid: Aquilla Energy Corp.) |
Aquila Southwest Marketing Corp. | Same (Subsid: Aquilla Energy Corp.) |
Aquila Southwest Pipeline Corp. | Same (Subsid: Aquilla Energy Corp.) |
Aquilla Energy Corp. | Same (Houston) (Subsid: UtiliCorp United) |
Arakis Energy Corp. | Talisman Energy, Inc. |
Arapaho Energy, Inc. | Subsid: Arapaho Petroleum, Inc. |
Arapaho Land Company, LLC | Same (Affil: JMA Energy Company, LLC) |
Arapaho Marketing Services, L.L.C. | Same (Subsid: Brighton Energy, L.L.C.) |
Arapaho Petroleum, Inc. | Intoil, Inc. |
Arapaho Ventures of New York, Inc. | Subsid: Arapaho Petroleum, Inc. |
Arapaho Ventures, Inc. | Subsid: Arapaho Petroleum, Inc. |
Arbuckle Oil Corporation | Same |
Arch Mineral Corp. | Ashland Oil & Refining Company |
Arch Petroleum Corp. | Pogo Producing Company |
ARCO Exploration Company | Vastar Resources, Inc. |
ARCO International Oil and Gas Co. | Subsid: Atlantic Richfield Co. |
ARCO Oil and Gas Corp. | Vastar Resources, Inc. |
ARCO Petroleum Products Company | Subsid: Atlantic Richfield Co. |
Arena Resources Inc. | Sandridge Energy, Inc.(Pending 2010) |
Argas Inc. | Capital Energy Inc. |
Argent Energy, Inc. | Sonat Exploration Company |
Argo Oil Corporation | Atlantic Refining Company |
Argo Petroleum Corp. | Chevron USA, Inc. |
Argo Royalty Company | Argo Oil Corporation |
Argosy Energy Inc. | Garnet Resources |
Arguello Inc. | Same (Subsid: Plains Resources, Inc.) |
Ariel Company | Jerry Chambers Exploration Co. |
Arkansas Bellwether Inc. | Same (Affil: Torch Energy Corporation) |
Arkansas Fuel Corporation | Cities Service Oil & Gas Corp. |
Arkansas Louisiana Gas Company | ARKLA, Inc. |
Arkansas Louisiana Pipeline Company | ARKLA, Inc. |
Arkansas Natural Gas Company | Arkansas Natural Gas Corporation |
Arkansas Natural Gas Corporation | ARKLA, Inc. |
Arkla Energy Resources Company | Same |
ARKLA Exploration Company (E & P) | Seagull Energy Corporation |
ARKLA Rio Offshore Exploration Company | ARKLA Exploration Company |
ARKLA, Inc. (Gas Transmission) | NorAm Energy Corp. |
Arkoma Production Company | ARKLA Exploration Company |
Arlington Ventures Ltd. | Same |
Artex Exploration Company | ARKLA Exploration Company |
Articles of Inc. Capital Company | Transamerica Development Co. |
Ascent Energy Inc. | Same (Subsid: RAM Energy Resources Inc. – Tulsa) |
Ascent Energy Louisiana, LLC | Same (Subsid: Ascent Energy Inc.) |
Ascent Operating, LP | Same (Subsid: Ascent Energy Inc.) |
Ascent Resources WV, Inc. | Same (Subsid: Ascent Energy Inc.) |
Ashland Exploration Holdings, Inc. | Same |
Ashland Exploration, Inc. | Subsid: Ashland Oil, Inc. |
Ashland Inc. | Ashland Exploration Holdings, Inc. |
Ashland Oil & Refining Company | Ashland Oil, Inc. |
Ashland Oil Canada | Kaiser Resources |
Ashland Oil Inc. | Ashland Inc. |
Aspen Group Resources Corp. | Same |
Associated Natural Gas, Inc. | Pan Energy Field Services, Inc. |
Associated Oil Company | Texaco USA, Inc. |
Associated Producers Company | Associated Oil Company |
Associated Royalty Company | Same |
Astra Resources, Inc. | Same (Subsid: Western Resources, Inc.) |
ATAPCO | Same |
Athabasca Company | Home Petroleum Corporation |
Atlantic Oil Producing Company | Atlantic Refining Company |
Atlantic Petroleum Storage Co. | Atlantic Refining Company |
Atlantic Refining Company | Atlantic Richfield Company |
Atlantic Richfield Company | BP Amoco Inc. |
Atlantis Resources, Ltd. | Summit Resources, Ltd. |
ATP Oil & Gas Corp. | Same (Houston) |
Atra Exploration Corp. | Same |
Aurora Gasoline Company | Ohio Oil Company |
Austin Drilling Company | Southland Royalty Company |
Austral Oil Company | Mobil Oil Corporation |
Austral Oil Company, Incorporated | Same (Subsid: American Exploration Company) |
Avance Oil and Gas Company, Inc. | Amax Petroleum Corp. |
Aviara Energy Corp. (Houston) | Same (Affil: Hunt Petroleum Corp.) |
Axem Energy Co. | Same (Affil: Axem Resources Incorporated) |
Axem Resources Incorporated | Westport Oil & Gas Inc. |
Axio Natural Resources, Inc. | Chesapeake Energy Corporation |
Axroyalty, Inc. | Axem Resources Incorporated |
Axyn Petroleum Corp. | Drilcorp Energy Ltd. |
Aztec Energy Corp. | Same |
Aztec Oil and Gas Company | Same (Affil: Meridian Oil Inc.) |
B | |
B & B Drilling Company | Exxon Company USA |
Babcock & Brown Energy Inc. | Same |
Babylon Oil Corp. | Same (Affil: Torch Energy Corporation) |
Baca Petroleum, Ltd. | Baca Resources, Ltd. |
Baca Resources, Ltd. | Same |
Baily, Vinson & Marion | Sinclair Oil Corporation |
Bakersfield Fuel and Oil Co. | Berry Petroleum Corporation |
Balco Energy Corp. | Houston Oil Fields Company |
Balcron Oil Company | Equitable Resources Energy Company |
Bald Eagle Energy Inc. | Same (Houston) |
Bald Eagle Energy Inc. (Houston) | Same |
Baldridge and King | Champlin Petroleum Company |
Ballard and Cordell | Balco Energy Corp. |
Bankline Oil Company | Aminoil USA, Inc. |
Banner Services, Inc. | Devon Energy Corporation |
Barago Energy Company | Mission Resources Corp. |
Barbour Energy Corporation | Same |
Barby Energy Corporation | Latigo Oil & Gas Inc. |
BarDon Oil Company | Liquidated |
Barfield Oil Corporation | Evergreen Operating Corporation |
Bargo Energy Company | Mission Resources Corporation |
Barnsdall Oil Company | Sunray Oil Corporation |
Barrett Energy Company | Barrett Resources Corporation |
Barrett Resources Corporation | Williams Companies, The |
Barrett, Bill Corporation | Same (Denver) |
Bartex Energy Corp. | Same |
Bartex Exploration Corp. | Same |
Baruch-Foster Corp. | Hadson Energy Resources Corp. |
BASF Corp. | Wintershall Energy |
Basin Drilling Corp. | Texaco, USA, Inc. |
Basin Exploration Inc. (Denver) | Stone Energy Corp. |
Basin Petroleum Company | Texaco USA, Inc. |
Basin Petroleum Corp. | Texaco USA, Inc. |
Basis Petroleum, Inc. | Same (Subsid: Salomon Inc.) |
Bass Bros. Enterprises, Inc. | Bass Enterprises Producing Co. |
Bass Enterprises Producing Co. | Same |
Bay Petroleum & C.U. Bay | Tenneco Oil Company |
Bay Pipeline, Inc. | Conquest Exploration Company |
Bayard Drilling Technologies, Inc. | Same |
BayCorp. Holdings Ltd. | Same (Subsid: Sloan Group Ltd.) |
Baytrust Oil Explorations LTD | Same (Affil: Torch Energy Corporation) |
Bayview Petroleum Company | Mobil Oil Corporation |
BB & O Oil Company | Berry Petroleum Corporation |
BBM Drilling Company | Exxon Company USA |
BCF Resources, Inc. | Same |
Beacon Oil Company | Ultramar, Inc. |
Bear Energy, LP | Same(Subsid: Bear Stearns Companies, Inc.) |
Bear Stearns Companies, Inc., The | Same (NY, NY) |
Bearcat Land, Inc. | Same |
Beard & Hammond | Hammond, J.G. |
Beard Company, The | Beard Oil Company |
Beard Oil Company | Same |
Beardmore Oil, Inc. | Petroleum Company |
Beaver Creek Hydrocarbons, Inc. | Simba Energy Corp. |
Beaver Mesa Exploration Company | MGF Oil Corporation |
BEC Merger Corp. | The Beard Company |
Belcher Oil Company | Sabine Corp. |
Belco Development Corporation | BelNorth Petroleum Corporation |
Belco Oil & Gas Corp. | Westport Resources Corp. |
Belco Petroleum Corporation | BelNorth Petroleum Corporation |
Belco Petroleum North America, Inc. | Enron Oil & Gas Company |
Belco Wyoming Corporation | Enron Oil & Gas Company |
Beldon & Blake Corporation | Same |
Beldon & Blake Energy Company | Beldon & Blake Corporation |
Bell Oil & Gas Company | Vickers Refining Company, Inc. |
Bell Oil Company | Bell Oil & Gas Company |
Bell Petroleum Company | Sabine Corporation |
Bellexco Inc. | Same (Affil: Torch Energy Corporation) |
Bellwether Exploration Co. (Houston) | Mission Resources Corp. |
BelNorth Energy Company | Enron Oil & Gas Company |
BelNorth Energy Corporation | Enron Oil & Gas Company |
BelNorth Petroleum Corporation | BelNorth Energy Corporation |
Belridge Oil Company | Shell Oil Company, Inc. |
Ben Franklin Refining Company | Bell Oil and Gas Company |
Benedum-Trees Oil Company | Kerr-McGee North American Onshore Corporation |
Bennet Petroleum Corporation | Abraxus Petroleum Corporation |
Benton Oil & Gas Co. | Same |
Benz Energy Inc. | Same (Houston) |
Benz Oil Corporation | Benz Energy Inc. |
Berkley Petroleum Corporation | Anadarko Petroleum Corporation |
Berry & Ewig | Berry Petroleum Company |
Berry & Ewig Oil Company | Berry Petroleum Company |
Berry Holding Company | Berry Petroleum Company |
Berry Improvement Company | Berry Petroleum Company |
Berry Oil Company | Berry Petroleum Company |
Berry Oil Trading & Transpiration Company | Berry Petroleum Corporation |
Berry Petroleum Company | Berry Petroleum Corporation |
Berry Petroleum Corporation (Taft, CA) | Same |
Berry, C.J., Dredging Company | Berry Petroleum Company |
Beta Development Company | Mesa, Inc. |
Beta Oil & Gas Inc. | Same (Newport Beach, CA) |
Beta Oil & Gas Inc. (Houston) | Prtrohawk Energy Corporation |
BG Gas Services (US) | British Gas Exploration & Production Co. (Subsid: British Gas (PLC)) |
BHP Petroleum (Americas) Inc. | Same |
BHP Petroleum Company Inc. | Same |
Big 10 Oil Company | Berry Petroleum Corporation |
Big A Well Service Company | Key Energy Group, Inc. |
Big Chief Drilling Company | Entex Petroleum, Inc. |
Big Four Petroleum Company | Same |
Big Horn Fractionation Company | Western Gas Processors, Ltd. |
Big Piney Oil & Gas Company | National Energy Group, Inc. |
Big Sky Marketing Corporation | Ocean Energy, Inc. |
Big West Drilling | Alliance Drilling Company |
Bintliff, D.C. | Same |
Birch Ranch Oil Company | Shell Oil Company, Inc. |
Bird Creek, LLC | Same (Subsid: Chesapeake Energy Corp.) |
Bishop Oil Company | Shell Oil Company, Inc. |
Bison Energy Corporation | Middle Bay Oil Company, Inc. |
BJ Services Company | Same (Houston) |
B-L Associates | Same |
Black Hills Exploration and Production, Inc. | Same (Rapid City, SD) |
Black Rock Partners LLC | Coronado Resources LLC |
Black Sea Energy, Inc. | Ivanhoe Energy, Inc. |
Black Stone Acquisitions Partner I, L.P. | Black Stone Natural Resources I, L.P. |
Black Stone Minerals Company, LP | Same (Houston) |
Black Stone Oil Company | Comstock Resources, Inc. |
Black Warrior Wireline Corp. | Warrior Energy Services Corporation |
Blackbird Company | Same (Affil: Axem Resources Incorporated) |
Blackhawk Oil Company | Same (Affil: Torch Energy Corporation) |
Blackjack Resources, Inc. | Same |
Blanco Oil Company | Sohio Petroleum Company |
Blazer Energy Corp. | Eastern States Oil & Gas, Inc. |
Blessure Hydrocarbons Corp. | Same |
Blue Dolphin Energy Company | Same (Houston) |
Blue Dolphin Exploration Company | Same (Subsid: Blue Dolphin Energy Company) |
Blue Quail Oil Company | Silverridge Corp. |
BMR Corporation | HS Resources, Inc. |
BN Financial Services Inc. | Same (Affil: Meridian Oil Inc.) |
BN Geothermal Inc. | Same (Affil: Meridian Oil Inc.) |
BN Leasing Inc. | Same (Affil: Meridian Oil Inc.) |
BN Services, Inc. | Same (Affil: Meridian Oil Inc.) |
BNL Development Corp. | Same (Affil: Meridian Oil Inc.) |
Bodcaw Oil Properties | Placid Oil Company |
Boesche, Peter | Same |
Bogert Oil Company | Louis Dreyfus Energy Corp. |
Bogert, Richard D. | BOGO Energy Corporation (operated properties) |
BOGO Energy Corporation | Same |
Boise Southern Company, Inc. | Sonat Minerals, Inc. |
Boltex Oil & Gas Company | Same |
Bolyard Oil & Gas Ltd. | Camelot Corporation |
Bomac Exploration Company | W.R. Grace and Company |
Bonanza Petroleum, Inc. | Same |
Bonneville Fuels Corp. (Denver) | CEC Resources, Ltd. |
Bonneville Pacific Corp. | Same (Los Angeles) |
Bonray Drilling Corp. | Bayard Drilling Technologies, Inc. |
Bonray Energy Company | EOG (Oklahoma) Inc. |
Boomer Marketing Corp. | Same (Subsid: Alexander Energy Corporation) |
Border Exploration Company | Coastal Oil & Gas Corporation |
Border Resources Inc. | Lomak Energy Services Co. |
Boswell Corp. | Grace Petroleum Corporation |
Boswell Energy Corporation | Grace Petroleum Corporation |
Bosworth Oil Company | Same |
Boundary Oil Co. | Conquest Exploration Company |
Boundary Properties | Conquest Exploration Company |
Bow Valley Industries | Same |
Bow Valley Petroleum, Inc. | Great Western Resources, Inc. |
Box Energy Corporation | Remington Oil & Gas Corp. |
BP | British Petroleum Company |
BP Amoco Inc. | Same |
BP Canada | Talisman Energy, Inc. |
BP Exploration Inc. | BP Amoco, Inc. |
BP Exploration Inc. (lower 48 onshore) | TEX/CON Oil & Gas Company |
Bracell Petroleum | Murphy Oil Corporation |
Bracewell Development Corp. | Same (Affil: Torch Energy Corporation) |
Bracken Energy Company | Same |
Bradco Oil & Gas Company | Nichols Oil and Gas Company |
Bradford Corp. | Same |
Bradford Energy Corp. | Bradford Corp. |
Bradford Petroleum Co. | Bradford Energy Corp. |
Bradley Producing Corporation, The | Triton Producing Company |
Bradmar Petroleum Corporation | Alexander Energy Corporation |
Brandywine Oil | Atlantic Richfield Company |
Braun, C.F. | Satnta Fe Braun, Inc. |
Bravo Natural Resources Inc. (Tulsa) | Chesapeake Energy Corp. |
Brazos Oil and Gas Corp. | Same (Subsid: Dow Chemical) |
Breck Operating Corporation | Same |
BRG Petroleum Corporation | Chesapeake Energy Corp. |
BRG Petroleum Inc. | Seagull Energy Corp. |
BRG Production Company | BRG Petroleum Corporation |
BRI Holding Corp. | Chippewa Resources Corp. |
Bridge Oil Company | Parker and Parsley Development Partners, LP |
Bridgeline Holdings LP | Chevron |
Bridger Petroleum Corp. | Home Petroleum Corporation |
Brigham Exploration Co. | Brigham Oil & Gas, L.P. |
Brigham Oil & Gas, L.P. | Same |
Brighton Acquisitions Company. L.L.C. | Same (Subsid: Brighton Energy L.L.C) |
Brighton Energy, L.L.C. | Same |
Brilliant Minerals Corporation | Womad Oil Company |
Brinson and Collines | United Producing Company |
Bristol Resources Corp. | Same (Tulsa) |
Bristol Resources Production Company | Same (Subsid: Bristol Resources Corp.) |
British American Oil Company | Gulf Oil Company |
British Gas (PLC) | Same |
British Petroleum Company (US) | Sohio Petroleum Company |
British-Borneo Petroleum, Inc. | Same (Subsid: British-Borneo Petroleum Syndicate, PLC) |
Brock Exploration Corporation | Key Production Company, Inc. |
Broken Hill Proprietary Co. Ltd. | BHP Petroleum Company, Inc. |
Bronco Drilling Inc. | Same (Subsid: Allis-Chalmers Energy) |
Bronco Energy, Inc. | Same (Tuscon) |
Brookhave Oil Company | Lear Petroleum Corp. |
Brooklyn Union Gas | Fuel Resources |
Brooks Hall Oil Company | Alexander Energy Corp. |
Brown – Saratoga Corporation | Same |
Brown & Root | Halliburton Company |
Brown, The R.J. Company | Ashland Oil & Refining Company |
Brown, Tom Inc. (Midland) | Same (Subsid: EnCana Corp.) |
Brustan Petroleum Corp. | Same |
Buckeye Exploration | Keystone Exploration, Inc. |
Buckhorn Oil Company | Apache Corporation |
Buckhorn Petroleum | Harper Oil Company |
Buffalo Capital V Ltd. | Aladdin Oil Corp. |
Buffalo Oil Company | Conoco Inc. |
Burdell Properties | Mission Resource Partners, L.P. |
Burkhart Petroleum Corp. | Same (Houston) |
Burlington Northern Petroleum, Inc. | Same (Houston) |
Burlington Northern, Inc. | Same (Houston) |
Burlington Resources Corp. | ConocoPhillips |
Burlington Resources Offshore Inc. | ConocoPhillips |
Burlington Resources Trading Company | ConocoPhillips |
Burmah Oil and Gas Company | Aminoil USA, Inc. |
Burnaby Enterprises, Inc. | Unit Corporation |
Burnett Oil Company | Same |
Burns, R.L. | Pyro Energy Corp. |
Burton/Hawks, Inc. | Hawks Industries, Inc |
Bush Oil Company | Berry Petroleum Corporation |
Buttes Gas & Oil Company | Reunion Resources Company |
Buttonwood Petroleum Corporation | Gothic Energy Corporation |
Buttram Energies, Inc. | Same |
Buttran Texhoma Company | Buttran Energies, Inc. |
Byrd Oil Corp. | Mobil Oil Corporation |
Byrd Operating Co. | Same |
C | |
C & K Petroleum, Inc. | Enstar Petroleum Company |
C.J. Company | Berry Petroleum Corporation |
Cabot Carbon Company | Cabot Corporation |
Cabot Corporation | Cabot Oil & Gas Corporation |
Cabot Oil & Gas Corporation | Same |
Cachuma Drilling Corporation | Dyco Petroleum Corporation |
Caim Energy USA | Meridian Resource Corp. |
Cal Dive International Inc. | Same (Subsid: Helix Energy Solutions Group) |
Calco, Inc. | Chevron USA, Inc. |
California Company, The | Chevron USA, Inc. |
California Oil Company | California Company, The |
California Petroleum Corp. | Texaco USA, Inc. |
California Security Plans, Inc. | Burdell Properties |
Callon Consolidated Partners LP | Callon Petroleum Company |
Callon Petroleum Company | Same (Natchez, MS) |
Calpine Corp. | Same (Los Angeles, CA) |
Calplans Corporation | Burdell Properties |
Calplans Oil and Gas Company | Burdell Properties |
Calplans Partners | Burdell Properties |
Calplans Resources | Resource Partners |
Calumet Creek Oil, Ltd. | Atlantic Refining Company |
Calumet Florida, Inc. | Plains Resources, Inc. |
Calumet Industries, Inc. | Heritage Group, The |
Calvert Exploration Company | Sun Calvert Company |
Camaroo Energy Co. | C-Twentyette Oil and Gas Company (USA) |
Cambridge Atlantic Royalty Company | Ocean Energy, Inc. |
Cambridge Oil & Gas Company | Normandy Oil & Gas Co. |
Camelot Corporation | Same |
Cameriana Petroleum Corporation | Total Petroleum, Inc. |
Camterra Resources, Inc. | Same (Affil: Martex Drilling Company, LLP) |
Can West Exploration, Inc. | Same (Calgary) |
Canaan Energy Inc. | Chesapeake Energy Corp. |
Canaan Exploration, LLC | Same (Oklahoma City) |
Canadian Angus Resources, Ltd. | Abacan Resource Corp. |
Canadian Export Oil & Gas | Pacer Development |
Canadian Futurity Oils, Ltd. | Baca Resources, Ltd. |
Canadian Homestead Gas Company | Inter-City Gas |
Canadian Industrial Gas & Oil | Norcen Energy Resources |
Canadian Merrill | Francana Oil |
Canadian Reserve | Texaco USA, Inc. |
Canadian Superior Oil | Mobil Oil Corporation |
Canadian Turbo, Inc. | Same |
CanArgo Energy Corp. | Same (Houston) |
Canetic Resources Trust | Penn West Energy |
Canman (U.S.), Inc. | Amoco Production Company |
Cannon Energy, Inc. | Panther Energy Company, LLC |
Cannon Texas, Inc. | Cannon Energy, Inc. |
Canstar Ventures Corp. | Abacan Resource Corp. |
Cantera Natural Gas LLC | Copano Energy LLC |
Capatsky Petroleum, Inc. (Calgary) | Pease Oil Company |
Capco Energy Inc. | Same (Affil: Pyramid Petroleum. Inc.) |
Capital Energy Inc. | Same |
Capitalistic, Inc. | Fossil Bay Holding Co., Inc. |
Capitan Petroleum | E.E. Nearburg |
Capitan, Inc. | E.E. Nearburg |
Capoil Inc. | Montex Exploration Company |
Captiva Minerals Inc. | DLB Oil & Gas Inc. |
Captiva Resources, Inc. | Same |
Caravelle Petroleum, Inc. | Same |
Carbon Energy Corp. | Evergreen Resources, Inc. |
Cardinal Petroleum Company | Phillips Petroleum Company |
Carissa Oil Company | Berry Petroleum Corporation |
Carl Oil & Gas Co. | Same (Subsid: McFarland Energy, Inc.) |
Carlile and Howell, Inc. | Sonat, Inc. |
Carlton Resources Corp. | Ram Energy, Inc. |
Carmen Acquisition, LLC | Same (Subsid: Chesapeake Energy Corp.) |
Carolina Oil & Gas | Graham Exploration Corp. |
Carper Drilling Company | Cities Service Oil Company |
Carrizo Oil and Gas Inc. | Same |
Carson Petroleum Corporation | Devon Energy Corporation |
Cartel, Inc. | Same (Subsid: Washita Production Company) |
Carter Oil Company, The | Exxon Corporation |
Cascade & H.Y. “Red” Davidson | Pure Oil Company |
Cascade Natural Gas Corp. | MDU Resources Group Inc. |
Caspian Energy International Inc. (Dallas) | Puma Energy Inc. |
Castle Energy Corp. | Same (Subsid: Delta Petroleum Corp.) |
Castle Mud & Chemical Company | Matrix Energy, Inc. |
Castulon Royalty, Inc. | Roxana Resources, Ltd. |
Caveham Energy Resources Inc. | Same |
Cavenham Forest Industries Inc. | Caveham Energy Resources Inc. |
CCE Holdings LLC | Same (JV: Southern Union Company & GE Energy Financial Services) |
CDX LLC (Dallas) | TCW Group, Inc. |
CEC Resources, Ltd. | Same (Calgary) |
Cedyco Corporation (Houston) | Same |
Celeron Oil and Gas Company | Same |
Celsius Energy Company | Questar Exploration and Production Company |
CenAlta Energy Services Inc. | Same (Calgary) |
Cenard Oil & Gas Company | Chevron USA, Inc. |
Cenergy Exploration | Conquest Exploration Company |
Cenergy International | Conquest Exploration Company |
Cenergy Midwest Co. | Conquest Exploration Company |
Cenergy Transmission | Conquest Exploration Company |
Cenex, Inc. | Same |
Centennial Natural Gas Corporation | Grand Valley Gas Company |
Centex Oil and Gas, Inc. | Conquest Exploration Company |
Central Del Rio | Pan Canadian Petroleum |
Centura Energy | Minden Oil & Gas, Inc. |
Centura Inc. | Pennsylvania Castle Energy Corp. |
Centurion Corporation | Brown – Saratoga Corporation |
CEP Mid-Continent LLC | Same (Subsid: Constellation Energy Partners LLC) |
CH4 Corp. | Bill Barrett Corporation |
Chalaco, Ltd. | Jerry Chambers Exploration Co and Laser Oil Co. |
Chambers, Jerry Exploration Company | Same (Affil: Axem Resources Incorporated) |
Champion Reserve Corporation | Same |
Champlin Oil & Gas Corp. | Champlin Petroleum Company |
Champlin Oil & Refining Corp. | Champlin Petroleum Company |
Champlin Petroleum Company | Union Pacific Resources Company |
Champlin Refinery Company | Champlin Oil & Refining Corp. |
Chance Collar Co. | Same (Subsid: Homco International, Inc.) |
Chansler Western Oil & Development | Santa Fe Energy |
Chaparral Energy Inc. | Same (Oklahoma City) |
Chaparral Resources Inc. (New York) | Lukoil Overseas Holdings Inc. |
Chapman Energy, Inc. | Coda Energy, Inc. |
Chapman Resources Corp. | Chapman Energy, Inc. |
Charlestown Industries, Inc. | Same |
Charter E & P | Crystal Oil |
Charterhall America Inc. | Aviva America Inc. |
Chencere Petroleum Corp. | Adobe Resources Corporation |
Cherokee Resources, Inc. | Wynn-Crosby 1994, Ltd. |
Chesapeake Energy Corp. | Same |
Chesapeake Energy Marketing, Inc. | Same (Subsid: Chesapeake Energy Corp.) |
Chesapeake ENO Acquisition, LLC | Same (Subsid: Chesapeake Energy Corp.) |
Chesapeake Exploration Company | Chesapeake Exploration Limited Partnership |
Chesapeake Exploration Limited Partnership | Same (Subsid: Chesapeake Energy Corp.) |
Chesapeake Gas Development Corporation | Chesapeake Exploration Limited Partnership |
Chesapeake Gothic Corp. | Chesapeake Mid-Continent Corp. |
Chesapeake KNAN Acquisition, LLC | Same (Subsid: Chesapeake Energy Corp.) |
Chesapeake Louisiana, LP | Same (Subsid: Chesapeake Energy Corp.) |
Chesapeake Merger II Corp. | Chesapeake Mid-Continent Corp. |
Chesapeake Mid-Continent Corp. | Chesapeake Exploration Limited Partnership |
Chesapeake Operating, Inc. | Same (Subsid: Chesapeake Energy Corp.) |
Chesapeake ORC, LLC | Same (Subsid: Chesapeake Energy Corp.) |
Chevron Corporation | Same (Houston) |
Chevron Corporation | Same (Houston) |
Chevron Texaco Corp. | Chevron Corporation |
Chevron USA, Inc. | Chevron Texaco Corp. |
Chicago Corporation, The | Champlin Oil & Refining Corp. |
Chief Holdings LLC | Devon Energy Corporation |
Chieftain International, Inc. | Hunt Oil Company |
Chieftain Petroleum, Inc. | Entex Petroleum, Inc. |
Chinook Pipeline, Inc. | Nucorp Energy, Inc. |
Chinook Resources, Inc. | Nucorp Energy, Inc. |
Chippewa Resources Corp. | Same |
CHK-Staghorn Acquisition LP | Same (Subsid: Chesapeake Energy Corp.) |
Choate, Jack H., Inc. | Ray Resources Corporation |
Christie, Mitchell & Mitchell | Mitchell Energy Corporation |
Chuska Resources Corp. | Same (Subsid: Harken Energy Corp.) |
CIGE Merger Company, LLC | El Paso Production |
Cimarex Energy Company | Same (Denver – Tulsa) |
Cimarron Gathering LLC | Copano Energy LLC |
Cimarron Operating Company | Same (Subsid: Lomak Petroleum, Inc.) |
Cimarrona Limited Liability Company | Same (Affil: the GHK Company) |
Cincinnati Gas and Electric Company | Cinergy Inc. |
Cinergy Corp | Cinergy Inc. |
Cinergy Inc. | Duke Energy Corp. |
Circle A Drilling, Inc. | Anschutz Corporation |
Cirque Energy Corp. | Tikal Resources Corp. |
Cirrus Production Company | Same (Enid, OK) |
CITCO | Cities Service Oil & Gas Corp. |
Citgo Petroleum Corp. | Subsid: Southland Corp. |
Cities Service Company | Cities Service Oil & Gas Corp. |
Cities Service Gas Company | Cities Service Oil & Gas Corp. |
Cities Service Oil & Gas Corp. | OXY USA Inc. |
Cities Service Oil Company | Cities Service Oil & Gas Corp. |
Cities Service Petroleum Company | Cities Service Oil Company |
Cities Service Pipeline Company | Southland Corporation |
Cities Service Refining Corp. | Cities Service Oil Company |
Citrus County Land Bureau, Inc. | Subsid: Weco Development Corp. |
Clajon Gas Co., L.P. | Aquila Southwest Pipeline Corp. |
Clajon Holdings, L.P. | Aquila Southwest Energy Corp. |
Clajon Marketing, L.P. | Aquila Southwest Marketing Corp. |
Clark Oil & Refining Company | Apex Oil Company |
Clarkland Royalty, Inc. | Same (Affil: Meridian Oil Inc.) |
Clarkland, Inc. | Same (Affil: Meridian Oil Inc.) |
Classic Energy, Inc. | Same (Subsid: Chesapeake Energy Corp.) |
Classic Petroleum Resources | Same (Subsid: Chesapeake Energy Corp.) |
Clayoquot Resources, Ltd. (Calgary) | Same |
Cleary Exploration, Inc. | Same |
Cleary Petroleum Corporation | Grace Petroleum Corporation |
Cleary Petroleum, Inc. | Cleary Production, Inc. |
Cleary Production, Inc. | Same |
Clements Energy, Inc. | NERCO Oil & Gas, Inc. |
Clements-Bloomer Resources | Clements Energy, Inc. |
Clinton Oil Company | Energy Reserves Group, Inc. |
Clipper Oil Company | Nutek Oil Inc. |
CLX Energy, Inc. | Same |
CLX Exploration, Inc. | CLX Energy, Inc. |
CMS Continental Natural Gas Inc. | CMS Field Services Inc. |
CMS Energy Corp. (Dearborn, MI) | Same (Subsid: Consumers Energy, Inc.) |
CMS Field Services Inc. | Same (Subsid: CMS Energy Corp.) |
CNG Corporation | CNG Producing Company |
CNG Producing Company | Dominion Exploration & Production, Inc. |
Coastal Oil & Gas Corporation | El Paso Corp. |
Coastal Oils, Inc. | Same (Affil: Garrett & Co. – Oklahoma City) |
Coastal States Gas Company | Sabine Production Company |
Coastal States Gas Producing Company | Coastal Oil & Gas Corporation |
Cobb Oil & Gas Company | Same |
Cobb Resources Corporation | Golden Oil Company |
Cobopco, Inc. | Cobb Oil & Gas Company |
Cockrell Oil & Gas LP | UNOCAL Corporation |
Coconino SMA, Inc. (Park City, UT) | Same |
Coda Energy, Inc. | Same (Subsid: Belco Oil & Gas Corp.) |
Cody Company | Cabot Oil & Gas Corporation |
Cody Energy, L.L.C. | Cabot Oil & Gas Corporation |
CoEnergy Anadarko, Inc. | MCNIC Oil & Gas Midcontinent, Inc. |
CoEnergy Mid-Continent, Inc. | MCNIC Oil & Gas Midcontinent, Inc. |
CoEnergy Operating, Inc. | MCNIC Oil & Gas Midcontinent, Inc. |
Coho Resources, Inc. | Coho Resources, Ltd. |
Coho Resources, Ltd. | Same |
COI | Same (Subsid: Chesapeake Energy Corp.) |
Coldren Oil & Gas Company, LP | Same (New Orleans) |
Coldren Resources Company | Same (Subsid: Coldren Oil & Gas Company, LP) |
Coline Gasoline Corporation | Santa Fe Energy Company |
Collins & Ware Inc. | Same (Midland) |
Colorado Interstate Gas Company | Coastal Oil & Gas Corporation |
Colorado Oil and Gas Corporation | Coastal Oil & Gas Corporation |
Colorado Oil and T and P | Same |
Colorado Oil Company | Coastal Oil & Gas Corporation |
Colt Intermodal Inc. | Same (Affil: Meridian Oil Inc.) |
Colt Resources, Inc. | Same (Subsid: JN Oil and Gas, Inc.) |
Columbia Carbon Company | Cities Service Oil & Gas Corp. |
Columbia Energy Co., L.P. | Same |
Columbia Energy Group | NiSource, Inc. |
Columbia Fuel Company | Cities Service Oil & Gas Corp. |
Columbia Gas Development Corp. | Aviara Energy Corp. |
Columbia Gas System, Inc. | Columbia Energy Group |
Columbia Natural Resources LLC | Chesapeake Energy Corp. |
Columbia Petroleum Corporation | Same |
Columbus Energy Corporation | Same (Subsid: Cimarex Energy Company) |
Comanche Energy Inc. | Same (Dallas) |
Comet Drilling Company | Ocean Energy, Inc. |
Comet Entertainment, Inc. | Texoil, Inc. |
Comex Marine Service | Same |
Common Parent Corporation | Same (Affil: Meridian Oil Inc.) |
Comstock Resources, Inc. | Same (Dallas) |
Concho Exploration Inc. | Chesapeake Energy Corp. |
Concho Oil & Gas Corp. | Chesapeake Energy Corp. |
Concho Resources Inc. | Chesapeake Energy Corp. |
Concise Oil and Gas Partnership | Same (Affil: Hallwood Energy Companies) |
Concord Oil Company | Same (Houston) |
Concur Petroleum | Guaranty Energy |
Conder | Same |
Conoco Inc. | ConocoPhillips |
ConocoPhillips | Same (Houston) |
Conquest Energy Co. | American Exploration Company |
Conquest Exploration Company | American Exploration Company |
Conquest Exploration Company | Same |
Conquest Texas, Inc. | Conquest Exploration Company |
Conquest Transmission Company | Boundary Properties, Inc. |
Consolidated Fuel Corporation | Exploration Company of Louisiana |
Consolidated Gas Utilities Corporation | ARKLA, Inc. |
Consolidated National Gas | CNG Corporation |
Consolidated Oil & Gas, Inc. | Hugoton Energy Corporation |
Consolidated Oil Corporation | Sinclair Oil Corporation |
Consolidated Production | Petro-Lewis Corp. |
Constellation Energy Parners LLC | Same (Houston) |
Consumers Gas | Same |
Consumers Power Company | U.S. Energy Corp. |
Continental Natural Gas, Inc. | CMS Energy Corp. |
Continental Natural Gas, Inc. | Same |
Continental Oil Company | Conoco Inc. |
Continental Resources Corp. | Chapman Resources Corp. |
Continental Resources, Inc. | Same (Enid, OK) |
Continental Trend Resources Corp. | Continental Resources Inc. |
Contour Energy Company | Same (Houston) |
Converst Energy Partners, Ltd. | Convest Energy Corp. |
Convest Energy Corp. | Edisto Resources Corp. |
Convest Energy Corp. | Same (Subsid: Windsor Energy Corp.) |
Copano Energy LLC | Same (Houston) |
Coquina Oil Corp. | Same (Subsid: American Nat’l Petroleum Co.) |
Coral Drilling | Same |
Coral Reserves Group | Canaan Energy Inc. |
Core Oil and Gas | Same |
Corker Resources Inc. | Same (Calgary) |
Cornell Oil Company | Same (See Notes in back) |
Cornet | Conder |
Coronado Corporation | AMOCO Production Company |
Coronado Resources LLC | Same (Tulsa) |
Corpus Christi Oil & Gas Company | PG&E Resources |
Cortez Oil & Gas Inc. (Dallas) | Encore Acquisition Co. |
Cosden Oil & Chemical Company | American Petrofina Co. of Texas |
Cosden Petroleum/Grace | American Petrofina Co. of Texas |
Coseka Resources Ltd. | North Canadian Oils Ltd. |
Costain Holdings Inc. | Same |
Costilla Energy Inc. | Same |
Costilla Energy LLC | Costilla Energy Inc. |
Costilla Petroleum Corporation | Costilla Energy Inc. |
Cotton Petroleum Corp. | Apache Corporation (Oxy) |
Cotton Valley Resources Corp. | Aspen Group Resources Corp. |
Coty | Lario Oil and Gas Company |
Courtaulds | Same |
Courtaulds North America Inc. | Same |
Cox & Cox | Edwin L. & Berry R. Cox |
Cox, Edwin L. and Berry R. | Same |
CP Resources Inc | Redwood Energy (USA) Ltd. |
CRA, Inc. | Terra Resources, Inc. |
Crabtree, F. Dale | Jan-Dal Petroleum |
Crawley Petroleum Corporation | Same |
Crescendo Resources, L.P. | BP Amoco Inc. |
Crescent Corporation | Kerr-McGee Corporation |
Crescent Oil & Gas Corp. (Colorado) | Monument Resources, Inc. |
Crescent Oil and Gas Corporation | Livingston Oil Company |
Crescent Petroleum, Inc. | Same (Oklahoma City) |
Creslenn Oil Company | Deminex U.S. Oil Corp. |
Crestmont Petroleum | Cities Service Oil & Gas Corp. |
Crestone Energy Corp. | Same (Subsid: Benton Oil & Gas Co.) |
Crimson Exploration Inc. | Same |
Cross Timbers Oil Company | XTO Energy Inc. |
Crown Central Petroleum Corp. | Same (Subsid: Apex Oil Company Inc.) |
Crown Partners, LLC (Oklahoma City) | Same |
Crown Zellerbach Corp. | James River Corporation |
Crusader Energy Company | Encore Operating, LP |
Crystal Gas Storage Inc. (Shreveport) | El Paso Energy Inc. |
Crystal Oil Company | Diamond Oil Company |
CS Resources Ltd. | Same |
CSL Partners | Costilla Energy Inc. |
CSX Oil & Gas Corporation | Total Petroleum, Inc. |
C-Twentyette Oil and Gas Company (USA) | Tronz-Om US and Canada, Ltd. |
Cudd Pressure Control Inc. | Same (Subsid: RPC Inc.) |
Cummins & Walker Oil Company, Inc. | Corpus Christi Oil & Gas Co. |
Cutlass Corporation | 201 Corporation |
CXY, Inc. | Same (Subsid: Canadian Occidental Petroleum, Ltd.) |
Cypher Energy Corporation | Alliance Exploration Corp. |
Cyprus Capital Corp. | Everest Energy Corp. |
Cyprus Minerals Company | Same |
Cytoprobe Corporation | Same |
D | |
Dabros Properties, Inc. | JN Exploration & Production |
Dalco Oil Company | Sabine Production Company |
Daleco Resources Corporation (L.A., CA) | Same |
Dalen Resources Oil & Gas Co. | Enserch Corp. |
Dallas Oil & Minerals, Inc. | Lomak Petroleum, Inc. |
Damson Oil Corporation | Same |
Danciger | Sinclair Oil Corporation |
Daugherty Resources Inc. | Same (Lexington, KY) |
Davidson Oil & Gas, Inc. | DLB Oil & Gas, Inc. |
Dawson Production Services, Inc. | Key Energy Group, Inc. |
Days Corporation | Echo, Inc. |
DCP Midstream, Inc. | Same (Subsid: Duke Energy Corp.) |
DDD Energy Inc. | Same (Subsid: Seitel Inc.) |
Dean Brothers Oil Company | Great Expectations |
Deep Gas Exploration, Inc. | RATEX Resources Incorporated |
Deep Rock Oil Corporation | Crescent Corporation |
DeepKo Lease & Royalty Co | Same |
DEI Enterprises, Inc. | Same |
DEKALB Agricultural Association | DEKALB Petroleum & DEPCO, Inc. |
DEKALB Energy Canada, Ltd. | Apache Corporation |
DEKALB Energy Company | Devon Energy Company |
DEKALB Petroleum & DEPCO, Inc. | DEKALB Energy Company |
Del Mar | Same |
Del Mar Production | Southland Royalty Company |
Delhi Gas Marketing, Inc. | Koch Midstream Gas Marketing Company |
Delhi Gas Pipeline Company | Koch Midstream Services Company |
Delhi Gas Venture, Inc. | Koch Industries, Inc. |
Delhi GasMark, Inc. | Koch Midsteram Gasmark Company |
Delhi-Taylor Oil Company | Tenneco Oil Company |
Delhi-Trading Incorporated | Koch Industries, Inc. |
Delta Drilling Company | Kerr-McGee North American Onshore Corporation |
Delta Petroleum Corp. | Same |
Delta Rigging and Tool Inc. | Same (Subsid: Austin Ventures-Austin, TX) |
Delta U.S. Corporation | Kerr-McGee North American Onshore Corporation |
Deltaus Corporation | Delta U.S. Corporation |
Deminex U.S. Oil Corp. | Southwest Royalties, Inc. |
Denbury Offshore, Inc. | Newfield Exploration Company |
Denbury Resources Inc. | Same (Dallas) |
Deneve | Same |
Denver Producing Company | Indian Royalty Company |
DEPCO, Inc. | DEKALB Energy Company |
Desana Corporation, The | Same (Subsid: Presidio Company) |
Desert American Agency, Inc. | Same (Affil: Meridian Oil Inc.) |
Desert Magic Inc. | Same (Affil: Meridian Oil Inc.) |
Detex Oil Corp. | Southwest Royalties, Inc. |
Deven Resources, Inc. | Same (Subsid: Daleco Resources Corporation) |
Devon Corporation | Devon Energy Corp. |
Devon Energy Corp. | Same (Oklahoma City) |
Devonian | Warren Petroleum Corp. |
DevX Energy Inc. | Comstock Resources, Inc. |
Diamond A Inc. | Coda Energy Inc. |
Diamond Alkali Company | Diamond Shamrock Exploration Co |
Diamond Energy Operating Co. | Coda Energy Inc. |
Diamond Energy, Inc. | Diamond Energy Operating Co. |
Diamond M Corporation | Same |
Diamond M Offshore Corp. | Diamond M Corporation |
Diamond Oil Company | Sun Oil Company |
Diamond Shamrock Corp. (E&P Operations) | Diamond Shamrock Exploration Co |
Diamond Shamrock Exploration Co. | Maxus Exploration Company |
Diamond Shamrock Offshore Partners LP | Meridian Oil Corp. |
Diamond Shamrock, Inc. | Ultramar Diamond Shamrock Corporation |
Diamond, Harry H. | Diamond Energy, Inc. |
Diatom Petroleum Inc. | Same (Bakersfield) (Subsid: Ivanhoe Energy, Inc.) |
Distinct Properties Energy, Inc. | Hare-Distinct Acquisition Corp. |
Diversa, Inc. | Homa Oil Company |
Diverse Energy Investments, Inc. | Same |
Diversfied Energies | Ocean Energy, Inc. |
Dixel | Blackjack Resources, Inc. |
Dixel Resources, Inc. | Owl Petroleum Company |
Dixie Oil Company | AMOCO Production Company |
DKM Resources, Inc. | Medallion Production Company |
DLB Energy, Inc. | DLB Oil & Gas, Inc. |
DLB Oil & Gas, Inc. | Chesapeake Mid-Continent Corp. |
DMF Resources Inc. | Same |
Dome Petroleum Corp. | Texaco USA, Inc. |
Dominion Exploration & Production, Inc. | Same (Subsid: Dominion Resources, Inc.) |
Dominion Oklahoma Texas Exploration & Production, Inc. | Linn Energy Inc. |
Dominion Resources, Inc. | Same |
Doran & Associates, Inc. | Cabot Corporation |
Dorchester | Damson Oil |
Dorfman Production | Heisler, W.H., Jr. |
Dos Ninos Oil & Gas Inc. | Simba Energy Corp. |
Double Eagle Petroleum Co. (Casper, WY) | Same |
Double Eagle Petroleum Inc. | Comanche Energy Inc. |
Double H Petroleum Corp. | ALN Resources Corp. |
Dougherty, J.F., Company | Same |
Douglass Resources Corporation | Cleary Petroleum Corporation |
Dow Chemical Co., Inc. (Oil & Gas Div.) | Apache Corporation |
Drako Gas Partners, L.P. | Tide West Oil Company |
Dresser Industries, Inc. | Halliburton Company |
Dreyer Bros., Inc. | Same (Affil: Meridian Oil Inc.) |
Dreyfus, Louis, Natural Gas Corp. | Dominion Exploration and Production, Inc. |
Drilcorp Energy Ltd. | Same |
Drilley Co. | Atlantic Richfield Company |
Drilling and Exploratin | Sinclair Oil Corporation |
DRJ, Inc. | Ocean Energy, Inc. |
DSM Exploration, Inc. | Gulf Production Corp. |
Duer Wagner & Co. | Wagner Oil Company |
Duke Energy Corp. | Same |
Duke Energy Field Services | DCP Midstream, Inc. (Subsid: Duke Energy Corp) |
Duke Energy Field Services, Inc. | Duke Energy Field Services, LP |
Duke Energy Field Services, LP | Same |
Duke Power Company | Duke Energy Corp. |
Duncan Corp. | Cobb Oil & Gas Company |
Duncan Energy Company | Babcock & Brown Energy, Inc. |
Duncan Enterprises, Inc. | DEI Enterprises, Inc. |
Duncan, J. Walter Corp. | Same |
Dupre’ International Inc. | National-Oilwell Inc. |
Dupre’ Supply Company | National-Oilwell Inc. |
Dusty Mac Resources, Inc. | TransGlobe Oil & Gas Corp. |
Dyco Petroleum Corporation | Same (Subsid: Samson Investment Company) |
Dynamar Energy, Inc. | Devon Energy Corporation |
Dyne Exploration Company | Same (Subsid: Ascent Energy Inc.) |
Dynegy Inc. | Same (Houston) |
E | |
E.P. Operating | Subsid: Enserch Corp. |
Eagle Chief Royalty Company | Faulkner Corp. |
Eagle Mountain Energy Corp. | Clinton Oil Company |
EAI Acquisition Company Inc. | Same (Affil: Torch Energy Corporation) |
Earlsboro Energies | Same (Subsid: Bogert Oil Co.) |
Earlsboro Energies Corp. | Earlsboro Energies |
Earlsboro Energy Corporation | Same |
Earlsboro Oil and Gas Corp. | Earlsboro Energies |
Eason Oil Company | Sonat, Inc. |
East Tennessee Natural Gas | Tenneco Oil Company |
East Wall Street Corporation | Socony Mobil Oil Company, Inc. |
Eastern Energy Marketing Inc. | Same (Subsid: The Eastern Group, Inc.) |
Eastern Group, Inc., The | Same (Subsid: Statoil, Inc.) |
Eastern States Exploration Company | Equitable Resources Energy Company |
Eastern States Oil & Gas, Inc. | Equitable Resources Energy Company |
Eastern States Oil Company | Signal Company |
Eastern States Petroleum & Chemical Co. | Eastern States Oil Company |
Eastland Oil Company | Sinclair Oil Corporation |
Eberly and Meade, Inc. | Meade Energy Corporation |
ECC Energy Corp. | West America Corp. |
Echo, Inc. | Same |
Ecological Engineering Systems, Inc. | Western Gas Processors, Ltd. |
ECOS Corporation | Same (Affil: Meridian Oil Inc.) |
Ecova Corporation | Amoco Production Company |
Ecuanor ASA | Rocksource ASA |
Edge Petroleum Corp. | Same |
Edisto Resources Corp. | Forcenergy, Inc. |
Edwards & Leach Oil Company | Alexander Energy Corporation |
EEH Newco LLC | Encana Corp. . |
EEX Corp. | Same |
EEX Onshore, Inc. | Same (Subsid: EEX Corp.) |
EFA Technologies, Inc. | Same |
Egret Energy Corporation | Same |
El Can Petroleum Company | Same (Affil: Meridian Oil Inc.) |
El Dorado Oil Company | Berry Petroleum Corporation |
El Paso Corp. | Same (Houston) |
El Paso Energy, Inc. | El Paso Corp. |
El Paso Exploration and Production Company | Same (Subsid: El Paso Natural Gas Co.) |
El Paso Exploration Company | Meridian Oil Inc. |
El Paso Natural Gas Company | Same (Houston) |
El Paso Oil & Gas Acquisition Corp. | Same (Subsid: El Paso Corp.) |
El Paso Production Company | Same (Subsid: El Paso Corp.) |
El Paso Products Company | Subsid: El Paso Natural Gas Co. |
Elan Energy, Ltd. | Same |
Eland Energy Corporation | Same |
Elba Gas Company | WOC Acquisition Company |
Elders Resources North America Inc. | New London Resources, Inc. |
Elf Aquitaine Inc. | Elf Exploration, Inc. |
Elf Exploration, Inc. | Same |
Elk River Resources | Sun Company, Inc. |
Ellora Oil & Gas Inc. | Same (Boulder) |
Ellora Operating LP | Same (Affil: Ellora Oil & Gas Inc.) |
Ellwood Oil Company | Southwest Royalties Inc. |
Elmerado Petrocorp | JAN-DI Corp. |
EM Nominee Partnership Company | Same (Affil: Hallwood Energy Companies) |
Emerald Oil and Gas | Out of Business – Liquidated |
Empire Energy Company | Amoco Production Company |
Empire Gas and Fuel Company | Empire Oil and Refining Company |
Empire Oil and Refining Company | Cities Service Oil & Gas Corp. |
Empire Southern | Andrews Production Company |
EnCana Corp. | Same |
EnCana Oil & Gas, Ltd. | EnCana Corp. |
Encor Inc. | Talisman Energy Inc. |
Encore Acquisition Company | Same (Ft. Worth) |
Encore Operating LP | Same (Ft. Worth) |
Endeavor Pipeline Inc. | Same (Subsid: GMX Resources Inc.) |
Energen Resources Corporation | Same |
Energen Resources MAQ, Inc. | Energen Resources Corporation |
Energy Assets Capital Corp. | Same (Affil: Torch Energy Corporation) |
Energy Assets International Corp. | Same (Affil: Torch Energy Corporation) |
Energy Assets IV-A LTD | Same (Affil: Torch Energy Corporation) |
Energy Associates, Inc. | General Atlantic Energy Corporation |
Energy Development Corporation | Same (Subsid: Samedan Oil Corp.) |
Energy Exchange Corp. | French Petroleum Corporation |
Energy Investments Inc. | Same |
Energy Minerals Corp. | HS Resources, Inc. |
Energy Operations Nevada, LP | Same |
Energy Partners LTD (a/k/a EPL) | Same (New Orleans) |
Energy Partners Nominee Co. | Duncan Energy Company |
Energy Reserves Group, Inc. | BHP Petroleum (Americas) Inc. |
Energy Service Company, Inc. | ESCO, Inc. |
Enerplus Group | Same |
Enex Resources Corp. | Same (Subsid: Midland Resources, Inc.) |
English-American Import Export Co. | Same (Affil: The GHK Company) |
Enhance Oil Resources, Inc. | Same (Houston) |
Enjay Chemical Company | Exxon Corporation |
Enogex, Inc. | Same (Subsid: Oklahoma Gas & Elec. Company) |
Enopco Inc. | UMC Petroleum Corporation |
Enova Corporation | Sempra Energy, Inc. |
Enpal Inc. | UMC Petroleum Corporation |
ENRON Corp. | Same |
Enron Gas Service Corp | Same (Subsid: ENRON Corp.) |
Enron Oil & Gas Company | EOG Resources, Inc. |
Enserch Corp. | EEX Corp. |
Enserch Exploration | Enserch Corp. |
Ensign Oil & Gas Inc. | Same |
Ensign Oil Company | Devon Energy Corporation |
Ensource Inc. | UMC Petroleum Corporation |
Ensources Inc. | UMC Petroleum Corporation |
Enstar Petroleum Company | Union Texas Petroleum Corp. |
Enstar Petroleum, Inc. | Enstar Petroleum Company |
Ensyn Energy Inc. | Ivanhoe Energy, Inc. |
Ensyn Group Inc. (Boston) | Ivanhoe Energy, Inc. |
Ensyn Petroleum International | Ivanhoe Energy, Inc. |
Entell NGL Services, LLC | Same (50/50 JV of Tejas Natural Gas Liquids LLC and Enterprise Products Partners, L.P.) |
Enterprise Products Partners, L.P. | Same (Houston) |
Entex Petroleum, Inc. | UMC Petroleum Corporation |
Entex, Inc. | Same (Affil: Arkla Energy Resources Company) |
EOG (Oklahoma) Inc. | Same (Subsid: Ensign Oil Gas Inc.) |
EOG Resources, Inc. | Same (Houston) |
EOR International Inc. | Uentech International Corp. |
EPCO | Same |
EPL | Same (See Energy Partners, Ltd) |
Eppi Energies Corp. | Same (Subsid: Gibson US Corp.) |
EPSCO | Flow-Quip Texas Inc. |
EPX Company | Same (Affil: Meridian Oil Inc.) |
Equitable Petroleum Corp. | Equitable Resources Energy Company |
Equitable Production (Gulf) Company | Westport Resources Corp. |
Equitable Resources Energy Company | Same (Pittsburgh) |
Equity Oil Company (Salt Lake) | Whiting Petroleum Corp. |
ESCO Energy Inc. | Edisto Resources Corp. |
ESCO, Inc. | Edisto Resources Corp. |
Esenjay Exploration Inc. (Houston) | Santos USA Corp. |
Esmeralda Limited Liability Company | Same (Affil: The GHK Company) |
Esso Chemical Company, Inc. | Exxon Corporation |
Esso Standard Oil Company | Humble Oil and Refining Co. |
Estoril Producing Corporation | Same |
Ethel D. Company | Berry Petroleum Corporation |
Eureka Oil Company | Same |
Everest Energy Corp. | Same (Calgary) |
Evergreen Resources, Inc. | Same (Denver) (Subsid: Pioneer Natural Resources, Inc.) |
Excel Energy Corp. | Barrett Resources Corporation |
Excel Oil & Gas, Inc. | National Energy Group |
Excelsior Oil Corp. | McMoran Oil & Gas Company |
Exchange | Transco |
Exco Resources, Inc. | Same (Dallas) |
Exeter Oil Company | Apache Corporation |
Ex-Mission Ranches, Inc. | Same (Affil: Meridian Oil Inc.) |
Expedition Natural Resources Inc. | Same (Subsid: GMX Resources Inc.) |
Exploration Associates, L.P. | Exploration Associates, LLC |
Exploration Associates, LLC | Same (Oklahoma City) |
Exploration Company | TXCO Resources, Inc. |
Exploration Company of Louisiana (XCL) | XCL, Ltd. |
Exploration Company, The (San Antonio) | TXCO Resources, Inc. |
Exploration Drilling, L.P. | Exploration Associates, LLC |
Exploration, Inc. | Presidio Exploration, Inc. |
Express Acquisition Company | Same (Affil: Torch Energy Corporation) |
Exxon Company USA | ExxonMobil Corp. |
Exxon Corporation | Exxon Company USA |
ExxonMobil Corp. | Same (Houston) |
F | |
F & M Oil Company | Same |
F & P | McMoran Oil and Gas Company |
Fain Porter Production Company | Same (Affil: The GHK Company) |
Fairbanks and Haas Inc. | Fortune Petroleum Corp. |
Falcon Seaboard | Diamond Shamrock Exploration Co |
Fargo Oils LTD. | Getty Oil Company |
Farmer, Ed & Associates, Inc. | EFA Technologies, Inc. |
Farmers Union Central Exchange, Inc. | Cenex, Inc. |
Farmland Industries, Inc. | Oxoco, Inc. |
Farmland International Energy Co. | Terra Resources, Inc. |
Faulconer, Vernon E. Inc. | Same |
Faulkner Corp. | Same |
Faulkner Exploration, Inc. | Faulkner Corp. |
FEC Offshore Inventory Company | Enron Oil & Gas Company |
Federal Intermediate Credit Bank | Farm Credit Bank of Wichita |
Federal Land Bank of Wichita | Farm Credit Bank of Wichita |
Federated Natural Resources Corp. | Cherokee Resources, Inc. |
Felmont Oil & Gas Company | Same (Affil: Torch Energy Corporation) |
Felmont Oil Corporation | Tenneco Oil Company |
Ferguson and Bosworth | Dissolved (See Notes in back) |
Ferguson Oil and Gas Company | Dome Petroleum Corp. |
Ferguson Oil Company | Same |
Fidelity Capital Corporation | Petrodynamics, Inc. |
Fidelity Royalty Company | Toklan Oil Company |
Fifteen Oil Company | Tenneco Oil Company |
Fina Inc. | Same |
Fina Oil and Chemical Company | Same (Subsid: Fina Inc.) |
Finlay Energy Corp. | Same |
First Energy Corp. | Same (Akron, Ohio) |
Flag Oil Corp. | Flag-Redfern Oil Corp. |
Flag-Redfern Oil Corp. | Kerr-McGee North American Onshore Corporation |
Flores & Rucks, Inc. | Ocean Energy, Inc. |
Florida Exploration Company | HNG Oil Company |
Florida Gas Exploration Company | Florida Exploration Company |
Flow-Quip | Flow-Quip Texas |
Flow-Quip Texas Inc. | Same |
Fluor Minerals, Inc. | Fluor Oil and Gas Corporation |
Fluor Oil and Gas Corporation | Primary Fuels |
Flying Diamond Oil Corp. | Bow Valley Industries |
Flynn Energy Corp. | RVO Petroleum Co. |
FM Properties Operating, Inc. | Samedan Oil Corporation |
FM Properties, Inc. | Same |
Focus Energy USA Inc. | Energy Operations Nevada, LP |
Fonsagrada, S.A. | Same (Affil: The GHK Company) |
Foran Oil Company | Matador Petroleum Corporation |
Forcenergy, Inc. | Forest Oil Corporation |
Forchall Oil | Same |
Forest Energy Resources (Subsid: Forest Oil) | Mariner Energy, Inc. |
Forest Oil Company | Forest Oil Corporation |
Forest Oil Corporation | Same |
Fort Collins Consolidated Royalties, Inc. | Encana Corp. |
Fortuna Energy Corp. | Midwest Energy Corp. |
Fortune Natural Resources Corp. | Same |
Fortune Petroleum Corp. | Fortune Natural Resources Corp. |
Fossil Bay Holding Co., Inc. | Same |
Founders Energy, Ltd. | Same |
Fowler Farm Oil Corporation | Western Crude Oil, Inc. |
Fox Production Corporation | Zuma New-Mexico Oil Corporation |
FP, Inc. | Lomak Petroleum, Inc. |
Francana Oil | Same |
Franco Western | Franco Wyoming Oil Company |
Franco Wyoming Company | Southland Royalty Company |
Frankfort | Texas Pacific Oil Company |
Fred Olsen, Inc. | Volvo Petroleum |
Freeport Oil Company | McMoran-Freeport Oil Company |
Freeport-McMoran Inc. | McMoran Oil & Gas Company |
Fremont Energy Corporation | Amerac Energy Corporation |
French Petroleum Corp. | Red Eagle Resources Corp. |
French Production Inc. | Same |
Frontier Oil & Gas Co., Inc. | Same (Subsid: Wainoco Oil Corp.) |
FT-79 Corp. | Eppi Energies Corp. |
Fuel Resources | Same |
Fuhrman Petroleum Corporation | Conoco Inc. |
Fullerton Oil Company | Monterey Oil Company |
Funk Exploration | Waterford Energy, Inc. |
G | |
G.L.M. Oil and Gas Company (Wyoming) | Same |
GAE Corp. | Ocean Energy, Inc. |
Galena-Signal Oil Company | Texaco USA, Inc. |
Gallant Oil Company | Same |
Galvest, Inc. | PrimeEnergy Corporation |
Garnet Resources | Same |
Garrett & Co. (Oklahoma City) | Same |
Gas Producing Enterprises, Inc. | Coastal Oil & Gas Corporation |
Gas SpinCo, Inc | DCP Midstream, Inc. |
Gasamerica, Inc. | Same (Affil: The GHK Company) |
Gasart, Ltd. | Same (Affil: The GHK Company) |
Gasoklahoma, Inc. | Same (Affil: The GHK Company) |
GBK Corporation (George B. Kaiser) | Same (Affil: Kaiser-Francis Oil Company) |
GCO Minerals Company | Same (Subsid: International Paper Company) |
GED Energy Services, Inc. | KSC Energy, Inc. |
Gem Oil, Inc. | Same (Subsid: American Exploration Company) |
Gemco, Inc. | Chevron USA, Inc. |
Gen. American Oil Company of Texas | Phillips Petroleum Company |
General American Oil Company | Phillips Petroleum Company |
General Atlantic Energy Corporation | General Atlantic Rockies Production Co. |
General Atlantic Oils, Ltd. | Ocean Energy, Inc. |
General Atlantic Resources, Inc. | Ocean Energy, Inc. |
General Atlantic Rockies Production Co. | Ocean Energy, Inc. |
General Crude Oil Company | Mobil G.C., Inc. |
General Development Partnerships (various) | UMC Petroleum Corporation |
General LP Acquisition Inc. | UMC Petroleum Corporation |
General Petroleum Corp. | Mobil Oil Corporation |
General Producing Company | UMC Petroleum Corporation |
Geodyne Energy Inc. | Same (Calgary) |
Geodyne Resources, Inc. | Samson Investment Company |
Geodyne Technologies Inc. | Geodyne Energy Inc. |
Georgetown Exploration Inc. | Same |
Getty Oil Company | Texaco USA, Inc. |
Getty Petroleum Marketing | Same (Subsid: Lukoil Oil Company) |
Getty Reserve Oil, Inc. | Getty Oil Company |
GFI Oil & Gas Corporation (Houston) | Salamander EnergyPLC (London) |
GHK Capital Company | Same (Affil: The GHK Company) |
GHK Company (Non-Operated/Producing Prop.) | GHK Energy Corp. |
GHK Company (Operated Properties) | Transitory Corporation |
GHK Company Columbia | Same (Affil: The GHK Company) |
GHK Company, The | Same (Note: New Entity) |
GHK Corporation, The | Same (Affil: The GHK Company) |
GHK Energy Corp. | GHK Company, The |
GHR Energy, Inc. | Same |
Giant Exploration & Production Company | Same |
Giant Refining Company, Inc. | Same |
Gibralter Exploration Company | High Point Investments |
Gibson US Corp. | Same |
Gilcrease Oil Company | Venus Oil Company |
Gilliland Oil Company | Reserve Petroleum Company |
GKM Oil Company | GKM, Inc. |
GKM, Inc. | Petromark Merger Company |
Glacier Arizona Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Boulder Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Denver Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Gateway Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Kent Industrial Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park King Street Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Liquidating Company | Meridian Oil Inc. |
Glacier Park Naperville Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Northwest | Same (Affil: Meridian Oil Inc.) |
Glacier Park Orillia Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Riverpoint Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park South Lander Company | Same (Affil: Meridian Oil Inc.) |
Glacier Park Wayzata Company | Same (Affil: Meridian Oil Inc.) |
Glencoe Resources Ltd. | Same |
Global Exploration, Inc. | Same |
Global Exploration, L.L.C. | Global Exploration, Inc. |
Global Link Technologies, Inc. | JR Oil & Gas, Inc. |
Global Natural Resources Corporation | Seagull Energy Corporation |
GlobalSantaFe Corp. | Transocean, Inc. |
Globe | Lario Oil and Gas Company |
Globe Life & Acc. Ins. Company (O&G Assets) | Same (Affil: Torch Energy Corporation) |
Glorieta Oil Company Inc. | Devon Energy Corporation |
Glover Hefner Kennedy Company | GHK Company, The |
GMX Resources Inc. | Same |
Goane Exploration California Corp. | Same |
Goane-Gitzch (US), Ltd. | Goane Exploration California Corp. |
Goddard Investment Company | Same |
Goddard, C.B., Investment Company | Goddard Investment Company |
Goff Oil Company | Reading & Bates Production Co. |
Goff-Lepper Drilling Company | Goff Oil Company |
Gold Deposit Mining & Milling Co. (Utah) | Onasco Companies, Inc. (Utah / Tennessee) |
Gold King Exploration | Denovo |
Golden Eagle Energy Inc. | Ultramar |
Golden Exploration & Production Corp. | Same (Subsid: Arlington Ventures Ltd.) |
Golden Oil Company | Same |
Golden Triangle Royalty & Oil, Inc. | Same |
Goodrich Petroleum, Inc. | Same |
Gopher Oil & Gas Company, LTD. | Same (Calgary, Seattle) |
Gordon Street, Inc. | North American Royalties, Inc. |
Gothic Energy Corporation (Tulsa) | Chesapeake Gothic Corp. |
GPM Corp. | Duke Energy Field Services |
Grace Petroleum Corporation | Samson Natural Gas Company |
Grace, W.R. | Grace Petroleum Corporation |
Grace, W.R. and Company | Grace Petroleum Corporation |
Graham Exploration | Same |
Graham, Keith D. | Omni Petroleum Corporation |
Graham-McMormick Oil & Gas | Ladd Petroleum Corp. |
Grand Valley Natural Gas Company | Same |
Granite Falls Rock, Inc. | Same (Meridian Oil Inc.) |
Graridge (American Petroleum) | Petco, Inc. |
Grayhill Exploration | U.S. Minerals Exploration |
Great Expectations | Same |
Great Lakes Energy Partners, LLC | Same (Affil: Range Resources Corp. & FirstEnergy Corp.) |
Great Plains Development | Phillips Petroleum Company |
Great Western Resources, Inc. | Forcenergy, Inc. |
Great WTN Exploration (NV) Inc. | Great WTN Onshore Inc. |
Great WTN Exploration (NV) Inc. | Same |
Green Tree Resources, Inc. | Spring Resources, Inc. |
Greenbrier Operating Company | Same |
Greenwald, L. Scotty, & Assoc. | MacOil & Gas International |
Greenwood Holdings Inc. | Packaging Research Corp. |
Greka Energy Corp. | Same (New York City) |
Gressel Corp. | VAL Energy, Inc. |
Greystone Petroleum, LLC (Houston) | Chesapeake Energy Corp. |
Grove Oil & Gas | Same |
Gruy Petroleum Management Co. | Same (Subsid: Magnum Hunter Resources, Inc.) |
Gryphon Exploration, Inc. (Houston) | Woodside Petroleum, Ltd. |
Guaranty Energy | Same |
Gulf Energy | Chevron USA, Inc. |
Gulf Energy | Penn Central |
Gulf Oil Company | Gulf Oil Corporation |
Gulf Oil Corporation | Chevron USA, Inc. |
Gulf Production Corporation | Same (Subsid: Coastal Oils, Inc. – OKC) |
Gulf Resources Corp. | Same |
Gulfco Industries, Inc. | Petroleum Services, Inc. |
Gulfport Energy Inc. | Same (Oklahoma City) |
Gulfstream Resources Canada, Ltd. | Anadarko Petroleum Corp. |
Gulfstream Resources Corp. (USA) | Same |
Gulfwest Energy Inc. | Same |
GulfWest Oil Company | Gulfwest Energy Inc. |
GW Merger Corp. | Great WTN Onshore Inc. |
GW Petroleum Inc. | Great WTN Onshore Inc. |
GWP Inc. | Great WTN Onshore Inc. |
GWR Inc. | Great WTN Onshore Inc. |
GWR Operating Company | Great WTN Onshore Inc. |
Gypsy Oil Company | Gulf Oil Corporation |
H | |
H&H Star Energy, Inc. | Same (Subsid: Howard Company) |
H.P. Oil & Gas Properties, Inc. | Deepko Lease & Royalty Co. |
H-30 Drilling Inc. | Columbian Energy Co., L.P. |
Hadson Energy Resources Corp. | Apache Corporation |
Hadson Ohio Oil Company | Hadson Petroleum Corporation |
Hadson Petroleum Corporation | Hadson Energy Resources Corp. |
Hallador Exploration Company | Hallador Petroleum Company |
Hallador Petroleum Company | Same |
Halley Energy Corporation | Cytoprobe Corporation |
Halliburton Company | Same |
Hallwood Energy Corporation | Same (Subsid: Chesapeake Energy Corp.) |
Hallwood Energy Corporation III | Same (Subsid: Chesapeake Energy Corp.) |
Hallwood Energy Partners, L.P. | Same |
Hallwood Petroleum, Inc. | Same |
Hallwood Petroleum, LLC | Same (Subsid: Chesapeake Energy Corp.) |
Halwell Company, Inc. | Same |
Hambro Gas & Oil Company | Enron Oil & Gas Company |
Hamilton Dome | Same |
Hamilton Oil Corp. | Broken Hill Proprietary Co. Ltd. |
Hammond, J.G. | JGM Company |
Hammond, John G. | Beard & Hammond |
Hampton Resources Corp. | Bellwether Exploration Company |
Hancock Oil & Gas Company | Hancock Oil Company |
Hancock Oil Company | Signal Company |
Hanna Company, The M.A. | Same |
Hanna Petroleum Company | The M.A. Hanna Company |
Hanover Petroleum | Total Petroleum, Inc. |
Harbert Energy Corporation | Forest Oil Corporation |
Harbour Gas & Oil LTD | Same (Affil: Torch Energy Corporation) |
HarCor Exploration, Inc. | Seneca Resources Corp. |
Harden Oil and Gas | Same |
Hardy Oil & Gas USA Inc. | Same |
Hare – Hoppan Reserves Group (U.S. Assets) | Hare Resources Americas, Inc. |
Hare Resources Americas, Inc. | Distinct Properties Energy, Inc. |
Hare-Distinct Acquisition Corp | Goane-Gitch (US), Ltd. |
Harken Energy Corporation (Dallas) | Same |
Harken Exploration Company | Same (Subsid: Harken Energy Corporation) |
Harken Oil & Gas, Inc. | Harken Energy Corp. |
Harper Oil and Gas, Inc. | Apache Corporation |
Harper Oil Company | Harper Oil and Gas, Inc. |
Harper, F.E., & Cornell | Same |
Hartex-Anadarko Permian Basin Partnership | Enron Oil & Gas Company |
Harvest Energy Trust | Same |
Harvestor Oil and Gas Co. | Same (Subsid: GAE Corp.) |
Hathaway Company | Pyramid Oil |
Hawks Industries, Inc. | Same |
Hawthorne Oil and Gas Corporation | Same (Subsid: American Nat’l Petroleum Co.) |
HD Oil Company | Homer Dean Oil Company |
Headington Canada Corp. | Same |
Headington Oil Company | Headington Canada Corp. |
Hefner Company, The | Arbuckle Oil Corporation |
Hefner Exploration Company | Same |
Heisler, W.H., Jr. | Same |
Helix Energy Solutions Group | Same |
Helmerich & Payne, Inc. | Cimarex Energy Company |
Helping Hand Energy, Ltd. | Same |
Hemmings Corp. | Blackbird Co. |
Henderson Petroleum Corp. | Burkhart Petroleum Corp. |
Herboil Company | DMF Resources Inc. |
Hercules Offshore Corp. | Parker Drilling Company |
Hercules Rig Corp. | Parker Drilling Company |
Heritage Energy Resources, Inc. | Same |
Heritage Gas Services, LLC | CMS Energy Corp |
Heritage Glacier Park Company | Same (Affil: Meridian Oil Inc. |
Heritage Group, The | Same |
Hershey Oil Company | Same (Subsid: American Exploration Company) |
Hess Oil Corp. | Amerada Hess Corporation |
Hickock & Reynolds | Ibex & Windfohr |
Hickory Creek Development Company | Hanna Petroleum Company |
High Plains Oil Corporation | Same |
High Point Investments | Same |
Highland Production Company | Quay Valley Inc. |
Hildago-Willacy Oil Company | CNG Producing Company |
Hillin-Simon Oil Company | Okland Oil Company |
Hinkle Engineering, Inc. | Same |
Hixon Development Company | Giant Exploration & Production Company |
HNG | Enron Oil & Gas Company |
HNG Fossil Fuels Company | Enron Oil & Gas Company |
HNG Offshore Properties, Inc. | Enron Oil & Gas Company |
HNG Oil company | HNG |
HO&M | Houston Oil & Minerals Corporation |
Hodge, T.F. | Same |
Hola Communications Inc. | Tamm Oil & GasCorp. |
Holly Corp. | Same (Merger with Frontier in litigation 2006) |
Holly Energy Company | Enron Oil & Gas Company |
Homa Oil & Gas Corp. | Consumers Gas Company |
Homa Oil Company | Consumers Gas Company |
Homco International, Inc. | Same |
Home Petroleum Corporation | Presidio Oil Company |
Homer Deal Oil Company | Same |
Home-Stake Oil & Gas Co. | Same (Subsid: Cortez Oil & Gas, Inc.) |
Home-Stake Royalty Corp. | Home-Stake Oil & Gas Co. |
Hondo Oil & Gas Co. (New Company formed 1989, Not ARCO) | Devon Energy Corporation |
Hondo Oil & Gas Company | Atlantic Richfield Company |
Honolulu Oil Company | Pan American Petroleum Company |
Horizon Oil & Gas Co. | Same |
Horizon Oil & Gas Co. of Texas | Horizon Oil & Gas Co. |
Horizontal Ventures Inc. | Greka Energy Corp. |
Houston Gas & Fuel Company | Arkansas Natural Gas Company |
Houston Gas Light Company | Houston Gas & Fuel Company |
Houston Natural Gas Corp. | Enron Oil & Gas Company |
Houston Oil & Energy, Inc. | Golden Triangle Royalty & Oil, Inc. |
Houston Oil & Minerals Corp. | Tenneco Oil Company |
Houston Oil Company of Texas | Atlantic Refining Company |
Houston Oil Trust | Seagull Energy Corp. |
Houston Operating Company | Same (Subsid: Normandy Oil & Gas Co.) |
Houston Petroleum Company | MSR Exploration LTD. |
Houston Royalty Corp. | Houston Oil & Minerals Corp. |
Howard Energy Company | Same |
HPC, Inc. | Home Petroleum Corp. |
HS Resources, Inc. | Kerr-McGee Corporation |
HS Resources, Inc. (mid-continent) | Questar Exploration and Production Company |
HSRTW, Inc. (HS/Tide West) | Questar Exploration and Production Company |
HTR Gas Transmission Co. | Same (Subsid: Engineering, Inc.) |
Hudson Energy Inc. | Same (Affil: Torch Energy Corporation) |
Hughes Eastern Petroleum, Inc. | Prairie Producing Company |
Hughes Oil & Gas, Inc. | Texas Meridian Resources, Ltd. |
Hughes Tool Company | Same |
Hughes, B.J., Inc. | Hughes Tool Company |
Hugoton Capital Ltd. Partnership | Mesa Operating Company |
Hugoton Energy Corp. | Chesapeake Mid-Continent Corp. |
Hugoton Management Company | Mesa Operating Company |
Hugoton Production Company | Mesa, Inc. |
Humble Oil & Refining Company | Exxon Corporation |
Hunt Energy Corp. | Rosewood Resources, Inc. |
Hunt Oil (H.L. Hunt Est.) | Same |
Hunt Oil Company | Same |
Hunt Petroleum Corp. (Dallas) | Same |
Hunter Company, Inc. | ARKLA Exploration Company |
Hunter Resources, Inc. | Magnum Petroleum, Inc. |
Husky Energy, Inc. | Same |
Husky Oil Company | Marathon Petroleum Company |
Hut Oil Company | G.L.M. Oil and Gas Company |
Hutton Oil and Gas Corp. | Same |
Hutton/EAIC | Same (Affil: Torch Energy Corporation) |
Hydro Carbon Trading-Transport Co., Inc. | Same |
Hydrogen Energy Corporation | Same |
Hytech Energy Corp. | Moran Brothers |
HYTK Industries, Inc. | Quest Resources Corp. |
I | |
Ibex | Petco, Inc. |
Ibex & Windfohr | Same |
Ibex Resources Company, LLC | Same (Affil: JMA Energy Co., LLC) |
ICOS Energy Corp. | Charlestown Industries, Inc. |
IDC Energy Corp. | Same |
IEI Exploration, Inc. | Ocean Energy, Inc. |
IES Industries, Inc. | Same |
III Exploration Company | Same (Subsid: Intermountain Industries Inc.) |
Illini Carrier LP | Same (Affil: Torch Energy Corporation) |
Illinova Corp. | Dynegy, Inc. |
Imperial Oil and Gas Inc. | ONEOK Exploration Co. |
Imperial Petroleum | Moss Petroleum Company |
Imperial Petroleum, Inc. | Same |
Income Share, Inc. | Aberdeen Petroleum Corporation |
Independent Exploration Company | Same |
Independent Oil Company | Shell Oil Company |
India Temple Minerals Co. | Helping Hand Energy, Ltd. |
Indian Oil Company | Coral Reserves Group |
Indian Royalty Company | Cronell Oil Company |
Indian Territory Illuminating Oil Co. | Cities Service Oil Company |
Indian Wells Oil Company | Parker & Parsley Petroleum Company |
Indrex, Inc. | Integrated Drilling & Exploration, Inc. |
Industrial Gas Company | Arkansas Natural Gas Company |
Inexco Oil Company | Louisiana Land & Exploration Co. |
Infinity Inc. | Same (Chanute, KS) |
Inland Fuels Corporation | Inland Resources, Inc. |
Inland Resources, Inc. | Newfield Exploration Company |
Integrated Drilling & Exploration Inc. | Same |
Integrated Energy, Inc. | MCO Resources (Integrated) Corp. |
Integrated Energy, Inc. | UMC Petroleum Corporation |
Interamerican Corp. | Hunter Resources, Inc. |
Inter-City Gas | Same |
InterCoast Gas Services Co. | KCS Medallion Resources, Inc. |
InterCoast Oil and Gas Company | KCS Medallion Resources, Inc. |
Intergen (North America), Inc. | Same (JV of Shell Oil and Bechtel Enterprises) |
Intermoutain Industries Inc. | Same |
International Colin Energy Corp. | Same |
International Nuclear Corp. | Inexco Oil Company |
International Oil & Gas Corp. | DEPCO, Inc. |
International Recovery Corporation | World Fuel Services Corp. |
International Telephone | Sonat Exploration Company |
InterNorth, Inc. | Enron Oil & Gas Company |
Interstate Production Company | Northern Natural Gas Producing Company |
Intex | Shell Western E & P, Inc. |
Intoil Inc. | Same |
Investors Royalty Company | Dalco Oil Company |
Investors Royalty Company | Dalco Oil Company |
Iowa-Illinois Gas and Electric Company | MidAmerica Energy Company |
Iowas Resources Inc. | Midwest Resources Inc. |
Iron Mountain Oil Company | Same |
Island Oil Company | Penrose Production Company |
Ivahoe Energy Inc. | Same (Vancouver) |
Ivanhoe Energy, Inc. | Same (Vancouver, BC) |
J | |
J & B Royalty Company | Wilco Properties, Inc. |
J. P. Oil Company Inc. | J. P. Oil Company LLC |
J. P. Oil Company LLC | Same |
J.O.C. Operating, Inc. | Same (Subsid: Jefferson Oil Corp) |
Jackalope-New Mexico Oil Co. | Lacy Ranch Petro Corp. |
Jade Resources, Inc. | Consolidated Oil & Gas, Inc. |
Jal Oil Company | Sun Company, Inc. |
James Energy Management, Inc. | Consolidated Oil & Gas, Inc. |
James River Corporation | Cavenham Forest Industries Inc. |
James, T.L. & Co. | St. Mary Land & Exploration Co. |
Jan-Dal Petroleum | Same |
JAN-DI Corp. | Judd A. Nelson, Inc. |
Japex (U.S.) Corp. | Same (Subsid: Japan Petroleum Exploration Co.) |
Jath Oil Company | Mack Energy Company |
JED Oil Inc | Same |
Jefferson Oil Corp (Dallas) | Same |
Jergins Oil Company | Exxon Company USA |
Jet Oil Company | Deminex U.S. Oil Corp. |
JGM Company | Same |
JM Petroleum Corporation | Phibro Energy, Inc. |
JMA Energy Company, LLC | Same (Oklahoma City) |
JMA Energy, Inc. | JMA Energy Company, LLC |
JMA Resources, Inc. | JMA Energy, Inc. |
JMG Exploration Inc. (Nevada) | JED Oil Inc. |
JN Exploration & Production Limited Partnership | Same (Subsid: JN Oil and Gas, Inc.) |
JN Oil and Gas, Inc. | Same |
JN Petroleum Marketing, Inc. | Same (Subsid: JN Oil and Gas, Inc.) |
J-O’B Operating | Same |
Jocelyn-Varn Oil | Varn Oil Company |
John D. Oil and Gas Company | Same (Cleveland, OH) |
John I. & P.D. Moore | Same |
Johnson, F.K. | Ambassador Petroleum Corp. |
Jones, L.E. Operating, Inc. | Same (Affil: L.E. Jones Production Company) |
Jones, L.E. Production Company | Same |
Jonnell Gas Company | Chevron USA, Inc. |
JR Oil and Gas, Inc. | Same (Houston) |
Justice Oil Company, LLC | Justice Oil and Gas LLC |
Justis Supply Company | Key Energy Group, Inc. |
K | |
K. Stewart Petroleum Corporation | Chesapeake Energy Corporation |
K.E. Resources Ltd. | American Resources of Delaware, Inc. |
K.R.M. Petroleum Corp. | PrimeEnergy Corporation |
K2 Energy Corp. | Resillient Resources, Ltd. |
Kaifser Resources | Same |
Kaiser-Francis Oil Company | Same |
Kallispell Glacier Park Company | Same (Affil: Meridian Oil Inc.) |
Kaneb Energy Company | Same |
Kaneb Production Company | Kaneb Energy Company |
Kansas-Nebraska Natural Gas Company | K-N Energy, Inc. |
Katz Oil Company | Sohio Petroleum Company |
K-C Gas Company of New York | Ocean Energy, Inc. |
KCS Energy Inc. | Petrohawk Energy Corporation |
KCS Medallion Resources, Inc. (Tulsa) | Same (Subsid: KCS Energy Inc.) |
KEC Acquisition Corp. | Same (Subsid: American Exploration Company) |
Keldon Oil Company | Pittencrieff America, Inc. |
Kelley Oil & Gas Corp. | Contour Energy Company |
Kelley Oil & Gas Partners Ltd. | Kelley Oil & Gas Corp. |
Kelley Oil Corp. | Kelley Oil & Gas Corp. |
Kellog Oil Company | Richfield Oil Company |
Kellogg Company, The M.W. | Halliburton Company |
Kencope Energy Company | Same |
Kennecott Corp. | Same |
KerMac | Kerr-McGee |
Kern County Land Company | Tenneco Oil Company |
Kern Oil California (producing properties) | Texaco USA, Inc. |
Kernridge Oil Company | Same |
Kerr-McGee Corporation | Anadarko Petroleum Corporation |
Kerr-McGee North American Onshore Corp. | Devon Energy Corporation |
Kerr-McGee Oil & Gas Company | Same (Subsid: Kerr-McGee Corporation) |
Kestrel Energy, Inc. | Same |
Kewanee Oil Company | Chevron USA, Inc. |
Key Energy Group, Inc. | Same |
Key Production Company, Inc. | Same (Subsid: Cimarex Energy Company) |
Keystone Asset Mgt. Inc. | Richland Resources Corp. |
Keystone Exploration, Inc. | Same |
Kimbark Oil & Gas Company | Halador Petroleum Company |
Kimmerer Oil | Chevron USA, Inc. |
Kinder Morgan Energy Partners, LP | Same |
King Ranch Energy Inc. | St. Mary Energy Company |
King Ranch Oil & Gas Co. | STEX Energy Company |
Kinlaw Energy Partners, L.P. | Akin, Matthew |
Kinsey Interests | Same |
Kinson Resources, Inc. | Patrick Petroleum Company |
Kirby Exploration Company | Same |
Kirby Petroleum (Reeves) | Same |
Kirby Petroleum (Toklan) | Kirby Petroleum (Reeves) |
Kirby Petroleum Company | Kirby Exploration Company |
Kirby Production Company | Kirby Exploration Company |
Kiwanda Energy, Inc. | Argent Energy, Inc. |
K-M Permian, Inc. | Kerr-McGee North American Onshore Corporation |
K-N Energy, Inc. (Lakewood, CO) | Sempra Energy, Inc. |
K-N Production Company | Tom Brown, Inc. (Midland) |
KNDA | Chevron USA, Inc. |
KNOC USA Corp. | Same (Affil: S. Korean Government) |
Koch Industries, Inc. | Same |
Koch Midstream Gas Marketing Company | Same (Subsid: Koch Industries, Inc.) |
Koch Midstream Gasmark Company | Same (Subsid: Koch Industries, Inc.) |
Koch Midstream Services Company | Same (Subsid: Koch Industries, Inc.) |
KPX, Inc. | Ocean Energy, Inc. |
Krider & Affiliates Petroleum Corp. | Monarch Petroleum Company |
KSA Industries, Inc. | Adams Resources & Energy, Inc. |
L | |
L F Oil | Union Oil Company |
L L & E | Louisiana Land & Exploration Company |
L L & E Royalty Trust | Louisiana Land & Exploration Company |
L. and V. Oil Company | Bell Oil and Gas Company |
Lacy & Byrd, Inc. | Byrd Operating Co. |
Lacy Ranch Petro Corp. | Same |
Ladd & Lukowicz, Inc. | Eureka Oil Company |
Ladd Petroleum Corp. | Amax Oil & Gas, Inc. |
LAE Energy Inc. | Same (Affil: Torch Energy Corporation) |
Lambert Oil | Cameriana Petroleum Corp. |
Lamson Onshore Oil Corporation | Same |
Laramide, LLC | Same |
Laredo Energy, II, LP | Same (Subsid: Chesapeake Energy Corp.) |
Lariat Petroleum Inc. (Tulsa) | Newfield Exploration Company |
Lariat Services, Inc. | Same (Subsid: Sandridge Energy, Inc.) |
Lario Oil & Gas Company | Same |
Laser Oil Company | Same (Affil: Axem Resources Incorporated) |
LASMO Canada, Ltd. | Elan Energy, Ltd. |
LASMO Energy Corp. | Amerada Hess Corp. |
LaTex Resources, Inc. | Alliance Resources PLC |
Latigo Oil & Gas Invc. (Woodward, OK) | Same |
Latigo Petroleum, Inc. (Tulsa) | Pogo Producing Company |
Laurel Operating Company, Inc. | Union Pacific Resources Company |
Lawton Oil | Colorado Oil & T & P |
LBJ Petroleum Corp. | Earlsboro Energies Corp. |
LDEC Acquisition Corp. | Same (Subsid: Louis Dreyfus Energy Corp.) |
Lear Petroleum Corp. | Same |
Lear Petroleum Partners Operating Co. LP | LPPOC |
Leonard Oil Company | Tenneco Oil Company |
Leredo Petroleum Inc. | Same (Tulsa) |
Lewis Producing Company | Texaco USA, Inc. |
Lewis Production Company | Texaco USA, Inc. |
Lexco | Lowe Associates |
Liberty Natural Gas Company | Seagull Energy Corporation |
Liberty Self-Stor, Inc. | John D. Oil and Gas Company |
Liedke | Pennzoil Company |
Lime Rock Partners | Same (Westport, CT) |
Limpia Royalty | Kewanee Oil Company |
Line Oil Well Service | NOMOC Oil Company, Inc. |
Linn Energy Inc. | Same |
Lion | Monsanto |
Lipan | Texota |
Liquid Carbonic Intrastate Pipeline Company | Integrated Drilling & Exploration, Inc. |
Little America Refining Co. | Sinclair Oil Corporation |
Little Rock Gas & Fuel Company | Arkansas Natural Gas Company |
Livermore, G.P., Inc. | Great Western Oil |
Livingston Oil Company | LVO Corporation |
Lomak Energy Services Co. | Subsid: Lomak Petroleum, Inc. |
Lomak Petroleum, Inc. (Ft. Worth) | Range Resources Corp. |
Lone Pine Resources Ltd. | Ocelot Energy Inc. |
Lone Star Producing Company | Ensearch Exploration Company |
Lonewolf Energy LLC | Lonewolf Energy, Inc. |
Lonewolf Energy, Inc. | Same |
Long Point Corporation | Socony Mobil Oil Company, Inc |
Loram International | Same |
Lorena Oil Company | Getty Oil Company |
Los Angeles Oil and Refining Company | Richfield Oil Company |
Los Nietos | Union Oil Company |
Louisiana Hunt Petroleum | Same |
Louisiana Land & Exploration Company | Burlington Resources Corp. |
Lovelady, I.W. | Aberdeen Petroleum Corporation |
Lowe Associates | Same |
Lowe Partners, LP | Maralo, LLC |
Lowe Petroleum | Maralo, LLC |
Lowe Royalty Partners, LP | Maralo, LLC |
Lowe, Ema | Maralo, LLC |
Lowe, M. Ralph, Inc. | Maralo, LLC |
Lowe, Ralph | Maralo, LLC |
Lowe, Ralph (Estate) | Maralo, LLC |
LPPOC | Minatome Corporation |
LPPOC | Same |
LRF Corp. | French Petroleum Corp. |
Lubel Oil Company | Hutton Oil and Gas Corp. |
Lukoil Americas Inc. | Same (Subsid: Lukoil Oil Company) |
Lukoil Oil Company | Same (Russia) |
Lumen Energy, Inc. (Oklahoma City) | Same |
LVO Corporation | Utah International, Inc. |
Lyman, C. V. (Winkler) Estate | Rycade |
Lynx Exploration Company | Lomak Petroleum, Inc. |
M | |
M & M Production Co. | Tenneco Oil Co. |
M.A.T. Oil & Gas Exploration, Inc. | Same |
MA Resources Company, LLC | Same (Affil: JMA Energy Company, LLC) |
Macbois Realti, Inc. | MacOil & Gas International |
MacDonald Oil Corporation | Aberdeem Petroleum Corporation |
Mack Energy Company | Same |
MacOil & Gas International (Spring, TX) | Same |
Madison Energy Corp. | Adobe Resources Corporation |
Madison Oil Company | Toreador Resources Corporation |
MAFCO | Chevron USA, Inc. |
Magic Circle Energy Corp. | Same (Subsid: Carlton Resources Corp.) |
Magna Oil Corporation | Triton Oil & Gas Corp. |
Magness Petroleum Company | Cleary Petroleum Corporation |
Magnolia Oil Company | Magnolia Petroleum Company |
Magnolia Petroleum Company | Socony Mobil Oil Company, Inc. |
Magnum Hunter Resources, Inc. | Same (Dallas) |
Magnum Petroleum, Inc. | Magnum Hunter Resources, Inc. |
Majestic Oilfield Services, Inc. | Same (Subsid: PetroQuest Resources Inc.) |
Malco Refining | Hondo Oil and Gas Company |
Mallard Bay Drilling Inc. | Parker Drilling company |
Mallard Petroleum, Inc. | Olds Petroleum Corporation |
Mammoth Oil Company | Berry Petroleum Corporation |
Manhattan Resources Corp. | Manhattan Resources Ltd. |
Manhattan Resources Ltd. | Same (Calgary) |
Mapco Oil & Gas Company | CNG Producing Company |
Mapco Production Company | Mapco Oil & Gas Company |
MAPCO, Inc. | Williams Companies, The |
Maplewood Glacier Park Company | Same (Affil: Meridian Oil Inc.) |
Maralo Merging Corporation | Maralo, LLC |
Maralo, Inc. | Maralo, LLC |
Maralo, LLC (Midland) | Same |
Marathon Oil Company | Marathon Oil Corporation |
Marathon Oil Corporation | Same (Houston) |
Marathon Petroleum Company | Marathon Resources Corp. |
Marathon Resources Corp. | Same (Subsid: USX Corp.) |
Mariner Energy, Inc. | Same |
Mark Production Company | Mewbourne Oil Company |
MarkWest Coalseam Development Co., Inc. | MarkWest Resources Inc. |
MarkWest Resources Inc. | Same |
Marland Oil Company | Marland Oil Company of Oklahoma |
Marland Oil Company of Oklahoma | Marland Production Company |
Marland Production Company | Continental Oil Company |
Marline Petroleum Corporation | Cheniere Petroleum Corporation |
Marshall Exploration, Inc. | Same (Subsid: Sonat, Inc.) |
Martex Drilling Company, LLP | Same |
Martin Exploration Management Company | Same |
Martine Pipeline Co. | Same (Subsid: McGoldrick Oil Company) |
Mass Energy Inc. | Pangaea Petroleum, Inc. |
Masters Energy Corporation | Harken Oil and Gas, Inc. |
Masterson, James A. | Laaramide, LLC |
Matador Petroleum Corporation (Dallas) | Tom Brown, Inc. |
Matagorda Bay Pipeline Company | Conquest Exploration Company |
Matagorda Island Exploration | Same (Subskd: Anadarko Petroleum Corporation) |
MATCO Enterprises, Inc. | PetroQuest Resources, Inc. |
Matlin Petroleum Corporation | Same |
Matrix Energy, Inc. | Same |
Maudlin & Wood | Clements Energy, Inc. |
Maxus Energy Corporation | Same |
Maxus Exploration Company | Midgard Energy Company |
Mayflo Oil Company | May Petroleum, Inc. |
MC Panhandle Corp. | Chesapeake Energy Corp. |
McAdams, Roux and Associates, Inc. | Plains Petroleum Company |
McAlester Fuel Company | Enstar Petroleum Company |
McClurg, M. R. & Company | High Plains Oil Corporation |
McColl-Frontenac Oil Company, LTD | Texaco USA, Inc. |
McCulloch Energy, Inc. | Same (Subsid: Harken Energy Corporation) |
MCCulloch Gas Processing Crop. | MGPC, Inc. |
McCulloch Gas Transmission Company | MGPC, Inc. |
McCulloch Interstate Gas Corp. | MGPC, Inc. |
McCulloch Oil Corp. of California | MCO Resources, Inc. |
McCulloch Oil Corp. of Texas | MCR Oil Corp. of Texas |
McCulloch Oil Exploration | McCulloch Oil Corp. of California |
McDermott, E.H. | Wrather, J.D., Jr. |
McElroy Ranch Company | Warren American Oil Company |
McElvain Oil & Gas | McElvain, T. H., Oil & Gas Ltd. Partnership |
McElvain, T. H., Oil & Gas Ltd. Partnership | Same (Affil: McElvain, T.H., Oil & Gas Ltd. Ptnshp.) |
McElvain, T. H., Oil & Gas Properties, Inc. | McElvain, T. H., Oil & Gas Ltd. Partnership |
McFarland Corporation | Coral Drilling |
McFarland Energy, Inc. | Monterey Resources, Inc. |
McFarland, Inc. & Drilling | Fluor Oil and Gas Corporation |
McGoldrick Oil Company | Same |
McGowen Resources Company | Same |
McKee Petroleum Company | Mobil Oil Corporation |
McMahon, Inc., C.L. | Forest Oil Company |
McMan Oil & Gas Company | AMOCO Production Company |
McMoran Exploration Company | McMoran Offshore Expl. Company |
McMoran Offshore Exploration Company | Same |
McMoran Offshore Management Company | McMoran Offshore Expl. Company |
McMoran Offshore Production Company | McMoran Offshore Expl. Company |
McMoran Oil & Gas Company | McMoran Offshore Expl. Company |
McMoran Production Company | McMoran Offshore Expl. Company |
McMoran-Freeport Oil Company | McMoran Offshore Expl. Company |
McMoran-Freeport Oil Company of Oklahoma | McMoran-Freeport Oil Company |
MCN Corporation | Same |
MCNIC Oil & Gas Co. | Same (MCN Investment Corp.) Subsid: MCN Corporation |
MCNIC Oil & Gas Midcontinent, Inc. | Same (MCN Investment Corp.) Subsid: MCN Corporation |
MCO Holdings, Inc. | UMC Petroleum Corporation |
MCO Resources (Integrated) Corp. | Same (Subsid: MCO Holdings, Inc.) |
MCO Resources Belize Corp. | MCO Resources, Inc. |
MCO Resources Spectrum Corp. | MCO Resources, Inc. |
MCO Resources, Inc. | MCO Holdings, Inc. |
MCOR Oil & Gas Corporation | MCO Resources, Inc. |
MCOR Oil Development, Inc. | MCO Resources, Inc. |
MCOR Oil Exploration, Inc. | MCO Resources, Inc. |
MCR Exploration, Ltd. | MCO Resources, Inc. |
MCR Newcorp, Inc. | MCO Resources Spectrum Corp. |
MCR Oil Corp. of Texas | MCO Resources, Inc. |
McRae Exploration | Lear Petroleum |
McRae Oil & Gas Corp. | Sipco, Inc. |
McWilliams Moffitt | McMoran Oil & Gas Company |
MDU Resources Group Inc. | Same |
Meade Energy Corporation | Same (Oklahoma City) |
Meadow View, Inc. | Conquest Exploration Company |
MEC Exploration, Ltd. Partnership 1989-A | Midwest Energy Companies, Inc. |
MEC, Inc. | Midwest Energy Corp. |
Mecom Oil | Same |
Medallion Oil Company | GHR Energy (Goodhope) |
Medallion Petroleum, Inc. | Same (Affil: Brighton Energy, L.L.C.) |
Medallion Production Company | InterCoast Oil and Gas Company |
Medicine Bow Energy Corp. | El Paso Corp. |
Mega Natural Gas Company (merger) | Associated Natural Gas, Inc. |
Meridian Oil Inc. | Burlington Resources Oil & Gas Company |
Meridian Oil Offshore Inc. | Burlington Resources Offshore Inc. |
Meridian Oil Production Company | Burlington Resources Oil & Gas Company |
Meridian Oil Trading Inc. | Burlington Resources Trading Inc. |
Meridian Resources Corp. | Same |
Merit Energy Corp. | BCF Resources, Inc. |
Merit Partners LP | Same |
MeritNet Partners, LP | Merit Partners LP |
Mesa Inc. | Pioneer Natural Resources USA, Inc. |
Mesa Limited Partnership | Mesa Inc. |
Mesa Operating Company | Mesa Inc. |
Mesa Operating Limited Partnership | Pioneer Natural Resources USA, Inc. |
Mesa Petroleum Company | Pioneer Natural Resources USA, Inc. |
Mewbourne Oil Company | Same |
Mexco Energy Corporation | Same (Midland, TX) |
MGF Oil Corporation | Southmark Corp. |
MGPC, Inc. | MCO Holdings, Inc. |
MGPC, Inc. (Powder River Basin Area) | Western Gas Processors, Ltd. |
Michcon | MCN Corporation |
Michigan Consolidated Gas Co. | Same (Subsid: MCN Corporation) |
MidAmerica Energy Company | Same |
Mid-America Pipeline Company | Enterprise Products Partners, LP |
Mid-America Resources, Inc. | Seaboard Oil Company |
Mid-American Investment Corp. | Conquest Exploration Company |
Mid-American Minerals, Inc. | Calvert Exploration Company |
Midcon | Same |
MidCon Central Exploration | Apache Corporation |
Mid-Continent Management Corporation | Petrodynamics, Inc. |
Mid-Continent Petroleum | Sun Expl. & Prod. Company |
Middle Bay Oil Co., Inc. | 3Tec Energy Corp. |
Middle States Oil Company | Midstates Oil Company |
Middle States Petroleum Corporation | Tennessee Gas Transmission Company |
Mid-East Oil Company | M.A.T. Oil & Gas Exploration, Inc. |
Midgard Energy Company | Crescendo Resources, L.P. |
Mid-Kansas Oil & Gas Company | Marathon Oil Company |
Midland Acquisition Corp. | Key Energy Group, Inc. |
Midland Resources, Inc. (Houston) | Same |
Midland Southwest Corporation | M.A. Hanna Company |
Midlands Gas Corp. | McMoran Oil & Gas Company |
Midpar, LP | Parker and Parsley Development Partners, LP |
Midstates Oil Company | Finlay Energy Corp. |
Midstates Oil Corporation | Middle States Petroleum Corporation |
Mid-States Oil Corporation | Tenneco Oil Company |
Mid-Tex Oil & Gas | Grove Oil & Gas |
Midway and Northwood | Reno Oil Company |
Midwest Energy Companies Inc. (Tulsa) | Clayoquot Resources, Ltd. |
Midwest Energy Company, Inc. | Midwest Resources, Inc. |
Midwest Energy Corp. | Same (Subsid: Midwest Energy Companies) |
Midwest Exploration Company | AMOCO Production Company |
Midwest Oil Corporation | Amoco Production Company |
Midwest Production Company | Kirby Petroleum Company |
Midwest Resources, Inc. | MidAmerica Energy Company |
Mid-Western Gas Transmission | Tenneco Oil Company |
Milestone | El Paso Natural Gas Company |
Milestone Petroleum Inc. | Meridian Oil, Inc. |
Miller Oil Company, Inc. (Midland) | Mexco Energy Corporation |
Minatome Corporation | Total Minatome Corporation |
Minden Oil & Gas, Inc. | Same |
Minerals Management Group, Inc. | Same (Subsid: Hinkle Engineering, Inc.) |
Minnehoma Oil Company | Getty Oil Company |
Mission Corporation | Getty Oil Company |
Mission Development Company | Getty Oil Company |
Mission Exploration, Inc. | Mission Resources, Inc. |
Mission Land Acquisition Company | Mission Resources, Inc. |
Mission Production Company | Mission Resources, Inc. |
Mission Resource Partners, L.P. | Same (Subsid: Mission Resources, Inc.) |
Mission Resources | Mission Resources, Inc. |
Mission Resources Corp. | Petrohawk Resources Corp. |
Mission Resources, Inc. | Mission Resources, Corp. |
Mississippi River Corporation | Natural Gas & Oil Corporation |
Mississippi River Trans. Corp. | Champlin Petroleum Company |
Missouri Valley Pipeline Company | Northern Gas and Pipeline Company |
Mitchell Energy Corp. | Devon Energy Corporation |
Mitchell Energy Development | Same (Subsid: Mitchell Energy Corp.) |
Mitchell Energy Production Company | Mitchell Energy Corp. |
MJB Company | Same (Affil: Torch Energy Corporation) |
Mobil G. C., Inc. | Same |
Mobil Oil Corporation | ExxonMobil Corp. |
Mobil Producing Texas New Mexico | Same |
MOG Exploration, Ltd. | MCO Resources, Inc. |
Mohawk Petroleum Company | Reserve Oil and Gas Company |
Monark Petroleum Company | Uniok Energy Corporation |
Moncrief, W.A. | Same |
Mon-Dak Oil Corporation | Socony Mobil Oil Company, Inc. |
Monday Oil Company | Getty Oil Company |
Monogram Oil & Gas, Inc. | Lomak Petroleum, Inc. |
Monsanto Oil Company | BHP Petroleum Company Inc. |
Montana-Dakota Utilities | MDU Resources Group |
Monte Carlo Exploration, Inc. | Rebel Exploration, Inc. |
Montecito Corporation | Forchall Oil |
Monterey Oil & Gas | Conoco Inc. |
Monterey Oil Company | Esso Standard Oil Company |
Monterey Resources, Inc. | Texaco USA, Inc. |
Montex Exploration Company | Same |
Monument Resources Inc. (Colorado) | Same |
Monza Oil Corporation | Estoril Producing Corporation |
Moore Exploration | John I. & P.D. Moore |
Moore McCormack Company | Moore McCormack Energy Co. |
Moore McCormack Energy Co., Inc. | CXY, Inc. |
Mooreland Oil & Gas, Ltd. | Ventura Energy, Inc. |
Moran Brothers | Same |
Moran Exploration, Inc. | Kaneb Production Company |
Morgan Gulf Corporation | AMOCO Production Company |
Moseley Petroleum Corporation | Triton Oil & Gas Corp. |
Moss Petroleum Company | Petco, Inc. |
Moss, P. | Union Oil Company |
Mosswood Oil & Gas Ltd. | Same (Subsid: Noble Affiliates Inc.) |
Mountain & Plains Oil Company | Aberdeen Petroleum Corporation |
MPTNM, Inc. | Mobil Prod. Of Tex & New Mex. |
M-R Holdings Acquisition Company | Same (Affil: Meridian Oil Inc.) |
M-R Holdings Inc. | Same (Affil: Meridian Oil Inc.) |
MRM Oil & Gas, Inc. | Coda Energy, Inc. |
MSR Exploration LTD. | Same |
MTS Limited Partnership | Mesa, Inc. |
Multistates Oil Properties N.V. | Mesa, Inc. |
Multistates Oil Properties, Inc | Mesa, Inc. |
Munance Corp. | Atlantic Refining Company |
Murchison Exploration, Inc. | Murexco Petroleum, Inc. |
Murexco Petroleum, Inc. | Same |
Murphy Oil Company of Oklahoma, Inc. | Chevron USA, Inc. |
Murphy Oil Corporation | Same (El Dorado, AR) |
Murphy Oil USA, Inc. | Same (Subsid: Murphy Oil Corporation) |
Murwell Resources Ltd. | Same |
Mustang Energy Corp. | Mustang Fuel Corporation |
Mustang Fuel Corporation | Same |
Mustang Oil & Gas Corp. | Same (Subsid: Gulf Resources Corp.) |
Mustang Production Company | Mustang Fuel Corporation |
Mustang Services Company | Mustang Fuel Corporation |
Mustang Services International Company | Mustang Fuel Corporation |
Muzzstang Ventures Company | Mustang Fuel Corporation |
MW Petroleum Corporation | Same (Subsid: Apache Corporation) |
MWJ Producing Company | Ocotillo |
MzRL Partners, LP | Maralo, LLC |
N | |
N.E. Financial Inc. | Same (Affil: Torch Energy Corporation) |
Nabors Industries, Inc. | Same |
Nadel and Gussman, Inc. | Same (Tulsa) |
Nalley Steel | Schlacter, D.A. |
Nance Petroleum Corporation | Same ( Subsid: St Mary Land & Exploration Co.) |
Nanome Aggregates Inc. | Same (Affil: Meridian Oil Inc.) |
National Energy Group, Inc. | Same |
National Exchange, Inc. | Same (Affil: Meridian Oil Inc.) |
National Exploration | Rosewood Resources |
National Petroleum Company | Richfield Oil Company |
National-Oilwell Inc. | National-Oilwell Varco Inc. (Houston) |
Natomas Company | Diamond Shamrock Exploration Co. |
Natomas Exploration Company | Natomas North America, Inc. |
Natomas North America, Inc. | Diamond Shamrock Exploration Co. |
Natomas of Oklahoma, Inc. | Natomas North America, Inc. |
Natural Gas & Oil Corporation | Same |
Natural Gas Corporation of California | Pacific Gas & Electric Company |
Natural Gas Dynamics, Inc. | American National Petroleum Co. |
Natural Gas Partners, LLC | Merchant Gas Partners, LLC (Affil: Aquilla Energy Corp.) |
Natural Resource Management Corp. | Edisto Resources Corp. |
Natural Resources Compressor Company | Same (Subsid: NJR Energy Corporation) |
Natural Resources Corporation | Ocean Energy, Inc. |
Nava Tex Drilling Company | Benz Oil Corporation |
Navajo Refining Inc. | Same (Subsid: Holly Corporation) |
Navarro | Conoco Inc. |
Navidad Oil & Gas Company | Boltex Oil & Gas Company |
Nearbug, E.E. | Nearbug Producing Company |
Nearburg Producing Company (Midland, TX) | Same |
Neely & Neely | Iron Mountain Oil Company |
NEG Oil & Gas LLC (Carl Icahn) | SandRidge Energy, Inc. |
NEI Arkansas Gathering, Inc. | Warren Arkansas Gathering, Inc. |
Nelson Petroleum Company | Grace Petroleum Corporation |
Nelson, Inc., Judd A. | Americex, Inc. |
Nelson, W. Paul & Company | Same |
Nerco Oil & Gas, Inc. | Louisiana Land & Exploration Co. |
NERCO, Inc. | Kennecott Corp. |
Nerox Energy Corporation (Upland, CA) | Same |
New Jersey Natural Resources Company | Same (Subsid: NJR Energy Corporation) |
New London Resources Inc. | Same (Subsid: New London Inc.) |
New Mexico San Juan Natural Gas Company | Delhi-Trading Incorporated |
New Pacific Ventures (Denver) | Tatonka Oil and Gas Inc. |
New World Development Co., Ltd. | Same |
New Zealand CQX Limited | Same (Subsid: Louis Dreyfus Natural Gas Corp.) |
Newfield Exploration Company | Same (Houston) |
Newmont Oil Company | Mobil Oil Corporation |
Newport Petroleum Corporation (Calgary) | Hunt Oil Company |
Newstar Energy Inc. | Newstar Resources Inc. |
Newstar Resources Inc. | Same |
NEXCO Inc. | Same (Subsid: Noble Affiliates Inc.) |
Nexen Inc. | Same |
NFC Corporation | MGF Oil Corporation |
NGC Energy Resources, Ltd. Partnership | Warren Energy Resources, Ltd. Partnership |
NGC Energy, Inc. | Warren Energy, Inc. |
NGC Liquids Marketing, Inc. | Warren Gas Liquids, Inc. |
Niagara Mohawk Power Corp. | Same |
Nicklos Oil & Gas Company | Same |
Nicor Exploration and Production Company | Scana Petroleum Resources, Inc. |
Nicor Exploration Company | Scana Petroleum Resources, Inc. |
Nicor, Inc. | Same |
Ni-Gas, Inc. | Nicor Exploration Company |
Nimrod Natural Gas Company | Lumen Energy, Inc. |
Ninian Oil Company | Same (Subsid: American Exploration Company) |
Ninian Oil Finance Corp. | Same (Subsid: American Exploration Company) |
NiSource, Inc. | Same |
NJR Energy Corporation | Same |
NJRE Operating Company | Same (Subsid: NJR Energy Corporation) |
Noble Affiliates Inc. | Noble Energy Inc. |
Noble Energy Inc. | Same (Houston) |
Noble, I. | Samedan Oil Corporation |
Nolonger Fuel Co., Inc. | Mustang Production Company |
Nomac Drilling Corporation | Same (Subsid: Chesapeake Energy Corporation) |
NOMECO Oil & Gas Company | Same |
NOMOC Oil Company, Inc. | Same |
NorAm Energy Corp. | Same |
Noranda Oil Corporation | Frontier Oil & Gas Co., Inc. |
Norcen Energy Resources Ltd. | Union Pacific Resources Group, Inc. |
Norcen Explorer, Inc. | Same |
Nordan Corporation Ltd. | TIPCO |
Norex Drilling, Inc. | Same |
Norfitt | American Petrofina Co. of Texas |
Norfok Holdings Inc. | UMC Petroleum Corporation |
Norman Corporation of Caddo, Inc. | Kinsey Interests |
Normandy Oil & Gas Co. | Same |
Norris Oil Company | Berry Petroleum Corporation |
Nortex Gas & Oil Company | BelNorth Petroleum Corporation |
North American Oil Consolidated | Phillips Petroleum Company |
North American Royalties, Inc. | Same |
North Canadian Oils Ltd. | Same |
North Carolina Natural Gas Corp. | Sonat Inc. |
North Central Oil Corp. | Pogo Producing Company |
North Finn LLC | Same |
North Star Resources, Inc. | Same |
Northern Fuel Supply Company | Northern Natural Gas Company |
Northern Gas and Pipeline Company | Northern Natural Gas Company |
Northern Michigan Exploration Company | NOMECO Oil & Gas Company |
Northern Natural Gas Company | Dynegy Inc. |
Northern Natural Gas Producing Company | Mobil Oil Corporation |
Northern Plains Natural Gas Company | ONEOK, Inc. |
Northern Plains Oil & Gas Company | Gopher Oil & Gas Company |
Northern Plains Railroad Company | Same (Affil: Meridian Oil Inc.) |
Northern Reef Exploration Ltd. | Same |
Northern Rockies Pipeline Company | Same (Affil: Meridian Oil Inc.) |
Northland Operating Company | DevX Energy Inc. |
Northrock Resources, Inc. | Same |
Northstar Energy Corp. (Calgary) | Same (Subsid: Devon Energy Corp.) |
Northwest Energy | Cities Service Oil & Gas Corp. |
Northwest Production Company | Same (Affil: Meridian Oil Inc.) |
Norwegian Oil Corporation | J.F. Dougherty Company |
Nu West Development | Same |
Nucorp Energy Company, Inc. | Nucorp Energy, Inc. |
Nucorp Energy, Inc. | Pin Oak Petroleum, Inc. |
Nuevo Denaro Petroleum Company | Fox Production Corporation |
Nuevo Energy Company | Plains Exploration and Production Co. |
Numac Oil & Gas Ltd. | Same |
NUMBERED ENTITIES | |
Nutek Inc. | Same (Lake Forest, CA) |
Nutek Oil Inc. | Same (Subsid: Nutek Inc.) |
Nycal Corp. | Same |
O | |
O.E.I. Trust, The | Same (Affil: The GHK Company) |
O.E.I., L.L.C. | Same (Affil: The GHK Company) |
Occidental Oil and Gas Corp. USA | OXY USA, Inc. |
Occidental Petroleum Corp. | Same |
Occidental Petroleum Ltd. (Canada) | Nexen, Inc. |
Ocean Drilling & Exploration | ODECO |
Ocean Energy Resources, Inc. | Devon Energy Corporation |
Ocean Energy, Inc. | Devon Energy Corporation |
Ocean Oil & Gas | ODECO |
Oceanic Oil | Producing Properties, Inc. |
Ocelot Energy Inc. | Same (Subsid: Industries Inc.) |
Ocelot Oil Company | Enron Oil & Gas Company |
Ocotillo | Same |
ODECO | Murphy Oil Corporation |
Odessa Exploration, Inc. | Key Energy Group, Inc. |
Odessa Natural Corporation | Same (Affil: Meridian Oil Inc.) |
Odyssey Energy Inc. | Hardy Oil & Gas USA Inc. |
Odyssey Oil and Gas Inc. | Hardy Oil & Gas USA Inc. |
Offshore Energy Investments, Inc. | Same (Affil: The GHK Company) |
Ohio & Plymouth | Marathon Petroleum Company |
Ohio Cities Gas Company | Union Oil Company of California |
Ohio Oil Company | Marathon Petroleum Company |
Oil & Gas Futures | Out of business |
Oil & Gas Properties Company | Chevron USA, Inc. |
Oil Acquisitions, Inc. | Same |
Oil Development Company of Utah | Santa Fe Energy |
Oil Investors, Inc. | MCO Resources, Inc. |
OKC Limited Partnership | Box Energy Corporation |
Oklahoma Acquisition Corp. | Tutamian Production Corporation |
Oklahoma Basic Economy Corporation | Same (Subsid: Ascent Energy Inc.) |
Oklahoma Natural Gas Company | Same |
Oklahoma Oil Company | Tidal Oil Company |
Okland Oil Company | Same |
Old Ben coal | Sohio Petroleum Company |
Old Ocean Oil Company | AMOCO Production Company |
Olds Petroleum Corporation | Ladd Petroleum Corporation |
Oleum, Inc. | Diamond Shamrock Exploration Co |
Oliver Resources, PLC | Dragon Oil, PLC |
Olix Industries, Inc. | Adobe Oil and Gas Corp. |
Olsen | Jal Oil Company |
Olsen & Jal | Texas Pacific Oil Company |
Olsen, Fred, Inc. | Volvo Petroleum |
Olympia Energy Corp. | Magic Circle Energy Corp. |
Olympia Energy Ventures, Ltd. | International Colin Energy Corp. |
Olympic Resources, Ltd. | Whittier Energy Corp. |
Omega – Smith Energy, Inc. | Smith Energy Associates, Ltd. |
Omega Corporation | Omega – Smith Energy, Inc. |
Omimex Resources, Inc. | Same |
Omni Exploration Inc. | Claim Energy USA |
Omni Petroleum Corporation | Same |
Omni Power Inc. | Same |
Onasco Companies, Inc. | Tengasco, Inc. (Knoxville, TN) |
ONEOK Exploration Co. | Same (Subsid: ONEOK Resources Company) |
ONEOK Resources Company (Tulsa) | TXOK Acquisition Inc. (transfer of production companies only – not utilities) |
ONEOK, Inc. | Same |
Onshore Oil Corporation | Lamson Onshore Oil Corporation |
Opinac Exploration, Ltd. | Tarragon Oil & Gas, Ltd. |
OPUBCO Energy Inc. | Same (Subsid: Oklahoma Publishing Co.) |
Ora Oil Company | Smith & Company |
Orbit Oil & Gas, Inc. | Sunoma Energy, Inc. |
Orion Drillings Funds (various years) | Ocean Energy, Inc. |
Orlando Resources Ltd. | Tornado Resources Ltd. |
ORRI, Inc. | Same (Affil: The GHK Company) |
Oryx Energy Company | Kerr-McGee Corporation |
Osage Milestone Petroleum | Same (Affil: Meridian Oil Inc.) |
Osca, Inc. (Lafayette) | BJ Services Company |
Ottawa Energy, Inc. | Same |
Output Exploration, LLC (San Antonio) | TXCO Resources Inc. |
Owl Petroleum Company | Same |
Owl Petroleum Company, Expl. & Prod. | Subsid: Owl Petroleum Company |
Oxford Consolidated, Inc. | Same |
Oxford Exploration | Oxford Consolidated, Inc. |
Oxley Petroleum Co. (Tulsa) | Chesapeake Energy Corporation |
Oxley, John C. Oil Producer | Oxley Petroleum Co. |
Oxoco Exploration Corp. | American Nat’l Petroleum Co. |
Oxoco Oil & Gas, Inc. | American Nat’l Petroleum Co. |
Oxoco Production Corp. | American Nat’l Petroleum Co. |
Oxoco, Inc. | American Nat’l Petroleum Co. |
Oxoco-Texas, Inc. | American Nat’l Petroleum Co. |
OXTEX, Inc. | American Nat’l Petroleum Co. |
Oxy Petroleum Inc. | Cities Service Oil & Gas Corp. |
OXY USA Inc. | Same (Subsid: Occidental Oil and Gas) |
P | |
P & O Falco, Inc. | Union Texas Petroleum Corp. |
P & O Oil Corporation | Same (Affil: Meridian Oil Inc.) |
P & P Producing Inc. | Midpar LP |
P & P Producing Texas, Inc. | P & P Producing Inc. |
P O R Oil & Gas Inc. | Norcen Explorer, Inc. |
P.P.M. Investments (USA), Inc. | India Temple Minerals Co. |
Pacer Development | Pacer Petroleum Inc. |
Pacer Petroleum Inc. | Same |
Pacific Energy Investments, Inc. | Devon Energy Corporation |
Pacific Energy Partners, LP | Same (Affil: Anschutz) |
Pacific Enterprises Oil Company | Hunt Oil Company (See Notes in back) |
Pacific Enterprises Royalty Company | Pacific Enterprises Oil Company |
Pacific Enterprises, Inc. | Sempra Energy, Inc. |
Pacific Gas & Electric Company | Same |
Pacific Gas & Electric Supply Company | NGC Energy Company |
Pacific Petroleum | Petro-Canada |
Pacific Power and Light Co. | Same |
Pacific Transmission Supply Company | Pacific Gas & Electric Supply Company |
Pacific Union | Texas American Oil Corp. |
Pacific Western Oil Corporation | Getty Oil Company |
Packaging Research Corporation | Same |
Paco Integrated Energy Inc. (Houston) | Same |
Paco Oil & Gas Inc. | Paco Integrated Energy Inc. |
Pampas Investments, Ltd. | Same (Affil: The GHK Company) |
Pan American Petroleum Corp. | Amoco Production Company |
Pan Energy Field Services, Inc. | Duke Energy Field Services, Inc. |
Pan Ocean | Marathon Petroleum Company |
Pan Ocean Energy Corporation Ltd. | Addax Petroleum Corporation |
Pan Petroleum MLP | Panaco, Inc. |
Panada Resources Corporation | LaTex Resources, Inc. |
Pancana Industries, Inc. | Pancana Minerals, Inc. |
Pancana Minerals, Inc. | Same |
PanCanadian Energy Corp. | EnCana Oil & Gas, Ltd. |
Pancanadian Petroleum Company | PanCanadian Energy Corp. |
PanEnergy Corporation | Duke Energy, Inc. |
Pangaea Petroleum Corp. | Same (Houston) |
Panhandle Eastern Corporation | PanEnergy Corporation |
Panhandle Oil and Gas, Inc. | Same |
Panhandle Oil Corporation | American Petrofina Co. of Texas |
Panhandle Royalty Company | Panhandle Oil and Gas, Inc. |
Panhandle Western Gas Company | APX Western Corporation |
Pantera Energy Corp. | HS Resources, Inc. |
Panther Energy Company, LLC | Same (Tulsa) |
Paracon Petroleum, Inc. | Cypher Energy Corporation |
Paragon Petroleum Corp. | Northrock Resources, Inc. |
Paragon Petroleum Ltd. | Paragon Petroleum Corp. |
Paramount Petroleum Co. | Same (Affil: Torch Energy Corporation) |
Paramount Resources Ltd. | Same (Seattle, Calgary) |
Park Avenue Exploration Crop. | PetroCorp, Inc. |
Park Oil | Martin Exploration Mgt. Company |
Parker & Parsley Development Partners, LP | Parker & Parsley Petroleum Company |
Parker & Parsley Petroleum Company | Pioneer Natural Resources USA, Inc. |
Parker Drilling Company | Same |
Parker Energy Resources, Inc. | Same |
Parker Industries, Inc. | Same (Subsid: Homco International, Inc.) |
Parker Oil and Gas Company | Ladd Petroleum Corp. |
Parker Petroleum Corp. | Western Oil Fields, Inc. |
Parragon Petroleum, Inc. | South Hampton Mineral Corp. |
Parson Oil LLC | Same |
Parson, Elmer S., Jr. | Parson Oil LLC |
Partners Oil Company | Cedyco Corporation |
Pasco, Inc. | Little America Refining Co. |
Pasotex Petroleum | The California Company |
Pathfinder Petroleum Corp. | Energy Investments |
Patina Oil & Gas Corporation | Noble Energy Inc. |
Patrick Petroleum Company | Goodrich Petroleum, Inc. |
Patterson Energy, Inc. (Snyder, TX) | Same |
Paul Revere Management Corp. | Same |
Pauley Petroleum, Inc. | Hondo Oil & Gas Co. (New 1989 not ARCO) |
Pax Petroleum, Inc. | Petrodynamics, Inc. |
P’Bell Energy Company | MCNIC Oil & Gas Midcontinent, Inc. |
PCTC – Oregon, Inc. | Same (Affil: Meridian Oil Inc.) |
PCTC – Skykomish, Inc. | Same (Affil: Meridian Oil Inc.) |
PCTC, Inc. | Same (Affil: Meridian Oil Inc.) |
Peak Energy Resources, Inc. | XTO Energy, Inc. |
Peake Energy, Inc. | Beldon & Blake Corporation |
Peake Operating Company | Beldon & Blake Corporation |
Pease Oil and Gas Company | Republic Resources, Inc. (Grand Junction, CO) |
Pecos Company | Same (Affil: Meridian Oil Inc.) |
Pecos Exploration Company | ALCO Oil & Gas Corporation |
Pecos Production Company | Chesapeake Energy Corporation |
PEDCO Resources Company | Same |
Peerless Oil & Gas Company | Fluor Oil and Gas Corporation |
Peerless Oil Producing Company | Peerless Oil & Gas Company |
PEI of Texas | Mesa, Inc. |
Peltex | McMoran Oil & Gas Company |
Pelto Oil Company | Southdwon, Inc. |
PEMC U.S., Inc. | Devon Energy Corporation |
PEMC, Inc. | Devon Energy Corporation |
Penaco, Inc. | Same |
Penn Central | Same |
Penn West (Denver, Calgary) | Same |
Penn West Energy Trust | Penn West |
Pennaco Corporation | Out of Business (Liquidated in Bankruptcy) |
Pennaco Drilling, Inc. | Out of Business (Liquidated in Bankruptcy) |
Pennaco Energy, Inc. | Same (Subsid: Marathon Oil Company) |
Pennaco Oil Company, Inc. | Out of Business (Liquidated in Bankruptcy) |
Pennaco Oil Corporation | Out of Business (Liquidated in Bankruptcy) |
Pennant Leasing, Inc. | Devon Energy Corp. |
Pennetex Petroleum Company | Tidewater Oil Company |
Pennsylvania Castle Energy Corp. | Same |
Pennsylvania Refining Company | Penreco, Inc. |
Penntex Petroleum & Land Co. | Tidewater Oil Company |
Penn-Virginia Resources Corp. | Same |
PennzEnergy Company | Devon Energy Corporation |
PennzEnergy Exploration & Production, LLC | Devon Energy Corporation |
Pennzoil Company | Pennzoil-Quaker State Company |
Pennzoil Exploration & Production Co. | Pennzoil Company |
Pennzoil United | Pennzoil Company |
Pennzoil-Quaker State Company | Shell Oil Company |
Penreco, Inc. | Same (Subsid: Pennzoil Company) |
Penrose Production Company | Sohio Petroleum Company |
Penrose, N.G., Inc. | Sohio Petroleum Company |
Peoples Energy Corp. | Same (Chicago) |
Peoples Energy Production Company | El Paso Exploration and Production Company |
Peoples Natural Gas Company | Sun Oil Line Company |
Peplin Oil Company (Stillwater, OK) | Crown Partners, LLC |
Peppers Refining Company | Champlin Refining Company |
Perfection Inspection Company | Dyco Petroleum Corporation |
Permian Basin Pipeline Company | Northern Natural Gas Company |
Permian Basin Trust | Same (Affil: Meridian Oil Inc.) |
Permian Corporation | Scurlock Permian Corp. (Subsid: Ashland Oil Inc.) |
Permian Oil | Permian Corporation |
Permian Resources Co. | Same (Subsid: Chesapeake Energy Corp) |
Perry Energy Corp., Inc. | Parker Energy Resources, Inc. |
Petco (Petroleum Corp. of Texas) | Breck Operating Corporation |
Petco, Inc. | Same |
Petro Well Services Inc. | CenAlta Energy Services Inc. |
Petro-Canada | Suncor Energy Inc. |
Petrocarbons, Inc. | Columbia Petroleum Corporation |
PetroCorp | PetroCorp, Inc. |
PetroCorp, Inc. | Unit Corporation |
Petrodel Exploration, Inc. | Petrofina Delaware, Inc. |
Petrodynamics, Inc. | Citrus County Land Bureau, Inc. |
Petrodyne Industries, Inc. | Petrodynamics, Inc. |
Petro-Energy Exploration Inc. | Faulkner Corp. |
Petrofina Canada | Petro-Canada |
Petrofina Delaware, Inc. | American Petrofina, Inc. |
Petrofina Exploration, Inc. | American Petrofina, Inc. |
Petrofina, SA (Belgium) | Total, SA |
Petroglyph Energy Inc. | Same (Hutchison, KS) |
Petroglyph Energy Inc. | Same (Hutchison, KS) |
Petrohawk Energy Corporation | Same (Houston) |
Petrohawk Operating Company | Same (Subsid: Petrohawk Energy Corp.) |
Petroleum Corp. of Delaware, The | Same (Subsid: Presidio Oil Company) |
Petroleum Corporation of Texas | Petco, Inc. |
Petroleum Development Corporation | Same (Bridgeport, W. VA) |
Petroleum Exploration and Technology, Inc. | Same (Los Angeles) (Subsid: Daugherty Resources, Inc.) |
Petroleum Inc. | Same (Tulsa) |
Petroleum Int’l Associates, Inc. | Hydro Carbon Trading-Transport |
Petroleum Investments, Ltd. | Bradmar Petroleum Corporation |
Petroleum Reserve Corp. | Castle Energy Corp. |
Petro-Lewis Corp. | Same |
Petro-Lewis of Lear Petroleum | Same |
Petrolith Inc. | Unibar Energy Services Inc. |
Petromark Merger Company | Petromark Resources Company |
Petromark Resources Company | PEDCO Resources Company |
PetroQuest Resources, Inc. | Same (Arlington, TX) |
Petroro Corporation | Captiva Resources, Inc. |
PetroSearch Energy Corp (Houston) | Double Eagle Petroleum Co. |
Petrosearch Energy Corp. (Houston) | Same (Subsid: Double Eagle Petroleum Co.) |
Petrotech Energy Group, Inc. | Same |
Petrotide Ltd. | Posse Energy Ltd. |
Petrotiger II Ltd. | Posse Energy Ltd. |
PETX Petroleum corp. | Anchor Bay Corp. |
Pexamin Pacific, Inc. | Independent Exploration Company |
PG&E Enterprises | Same (Subsid: Pacific Gas and Electric Company) |
PG&E Gas Supply Company | NGC Energy Company |
PG&E Resources Company | Same (Subsid: Pacific Gas and Electric Company) |
Phibro Energy, Inc. | Basis Petroleum, Inc. |
Philbro Oil & Gas Corp. | IDC Energy Corp. |
Phillips Oil Company | Phillips Petroleum Company |
Phillips Petroleum Company | ConocoPhillips |
Phoenix Energy Company | Same |
Phoenix Operating Company | Same |
Phoenix Resources Co. | TIPCO |
Phoenix Resources Companies, Inc. | Same (Subsid: Apache Corporation) |
Piaga, Inc. | Mesa, Inc. |
Piedmont Petroleum Corp. | Southwestern Production Corp. |
Pilgrim Exploration | American Energy Exploration Co. |
Pin Oak Petroleum, Inc. | Same |
Pincher Creek Ranch | Same (Affil: Meridian Oil Inc.) |
Pinto, Joseph | Same |
Pioneer Coal company | Mesa Petroleum Company |
Pioneer Corporation | Mesa Petroleum Company |
Pioneer Houston, Inc. | Mesa Petroleum Company |
Pioneer Natural Resources Co. | Same (Dallas) |
Pioneer Natural Resources USA, Inc. | Same (Dallas) |
Pioneer Nuclear, Inc. | Mesa Petroleum Company |
Pioneer Production Corp. | Mesa Petroleum Company |
Pittencrieff America, Inc. | Same (Abilene) |
Place Resources Corp. | Star Oil & Gas Acquisitions, Ltd. |
Placid Oil Company | Same |
Plains Exploration & Production Co. | Same (Subsid: Plains Resources, Inc.) |
Plains Petroleum Company | Barrett Resources Corp. |
Plains Resources, Inc. | Same (Houston) (Subsid: Vulcan Capital) |
Plano Petroleum Corp. | Trousil and Associates Inc. |
Platinum Energy Resources, Inc. | Same |
Platt Energy Corp. | United States Borax & Chemical Corp. |
Playa Minerals & Energy Inc. | Vulcan Minerals & Energy Inc. |
Pleasant Valley Energy Company | Same (Subsid: Tri-Valley Corporation) |
Plotner Oil and Gas Company | Silverridge Corp. |
Plum Creek Timber Company | Same (Affil: Meridian Oil Inc.) |
Plymouth Oil Company | Ohio Oil Company |
Poco Petroleum Ltd. (Calgary) | Burlington Resources Corp. |
Pogo Producing Company | Plains Exploration and Production Company |
Pomaikai Oil Corporation | Devon Energy Corporation |
Pontotoc Production Company Inc. | Same (Subsid: Ascent Energy Inc.) |
Ports of Call Oil Company | Champion Reserve Corporation |
Posse Energy Ltd. | Same |
Posse Petroleum Ltd. | Posse Energy Ltd. |
Potts Stephenson Exploration Co., Inc. | ONEOK Resources Company |
PPC Anadarko, In. | Harken Exploration Company |
PPC Oil & Gas Corp. | Paragon Petroleum Corp. |
PPPCO Oil Oil Co. Ltd. | Posse Energy Ltd. |
Prairie Oil Company | Prairie Sinclair Oil Company |
Prairie Producing Company | Same (Subsid: Placer Development, Ltd.) |
Prairie Sinclair Oil Company | Sinclair Oil & Refining Corp. |
Prairie State Energy Company | Same |
Premcor Refining Corp. | Valero Energy Corporation |
Premier Operating Company | Imperial Petroleum, Inc. |
Premier Resources Ltd. | Northern Reef Exploration Ltd. |
Presco Western LLC | Same (Subsid: Ellora Oil & Gas Inc.) |
Presidio Exploration, Inc. | (Subsid: Presidio Oil Company) |
Presidio Oil Company | Tom Brown, Inc. |
Presidio Operating Company | Captain, Inc. |
PREVIOUS NAME | CURRENT NAME |
Primary Fuels, Inc. | Same |
Prime Natural Resources Inc. | Same (Houston) |
PrimeEnergy Corporation | Same |
PrimeEnergy Management Corp. | Same (Subsid: PrimeEnergy Corporation) |
Prime-X Oil and Gas, LLC | Prime Natural Resources Inc. |
Princeton Natural Gas Company | Chesapeake Energy Marketing, Inc. |
Prize Energy Corp. | Magnum Hunter Resources, Inc. |
Producers Oil, Inc. | Texaco USA, Inc. |
Producers Royalty Corp. | Texas American Oil Corp. |
Producing Properties, Inc. | Reserve Oil and Gas Company |
Profile Capital Corp. | Abacan Resource Corp. |
Progress | Rycade |
Progress Energy, Inc. | Same (Raleigh, NC) |
Progress Fuel Corp. | Same (Subsid: Progress Energy, Inc.) |
Promax Energy Inc. | American Promax Inc. |
Prospect Company, The | Subsid: The Travellers Ins. Co. |
Providence Energy Corp. | Southern Union Company |
Providence Oil & Gas Corp. | Same |
Prudential Minerals Exploration | Del Mar |
PSEC, Inc. | ONEOK Resources Company |
PSI Energy Inc. (Indiana) | Duke Energy, Inc. |
PSPC Ltd. | ONEOK Resources Company |
Pubco Petroleum Corporation | Mesa Petroleum Company |
Public Service Company of Oklahoma | PSO |
Public Utility Corporation of Arkansas | ARKLA, Inc. |
Puma Energy Inc. | Same (Dallas) |
Pure Energy Resources Inc. | Same (Midland) (Affil: Uncoal Corp.) |
Pure Oil Company | Union Oil Co. of California |
Putnam Venture, Ltd. | Exploration Associates, LLC |
PYR Energy Corp. | Samson Investment Company |
Pyramid Oil Corporation | Same |
Pyramid Petroleum, Inc. | Same (Houston) |
Pyro Energy Corp. | Exex Resources |
Q | |
Quaker State Oil Company | Shell Oil Company |
Quanah Petroleum, Inc. | Marline Petroleum Corporation |
Quarles Drilling Corporation | Integrated Drilling & Exploration, Inc. |
Quasar Tech, Inc. | McGowen Resources Co. |
Quay Valley Inc. | Same |
Que West Resource, Inc. | Ottawa Energy, Inc. |
Quebec Affiliates (North America), Ltd. | Razor Oil Company |
Queen Sand Resources Inc. | DevX Energy Inc. |
Quesota Oil & Gas | Same |
Questa Oil & Gas Company | Same (Subsid: Unit Corporation) |
Questar Corp. | Same |
Questar Energy Company | Same (Subsid: Questar Corp.) |
Questar Exploration and Production Company | Same (Subsid: Questar Corp.) |
Quinoco Energy Inc. | Saxon Oil Development Partners |
Quinoco Oil Corp. | Saxon Oil Development Partners |
Quinoco Resources, Inc. | Saxon Oil Development Partners |
Quintana Petroleum, Inc. | Hallwood Petroleum, Inc. |
R | |
Rainbow Resources, Inc. | Williams Companies, The |
RAM Energy Resources, Inc. | Same (Tulsa) |
Ram Energy, Inc. | Same |
Ram Oil & Gas LLC (Dallas) | Tridimension Energy LLC |
Ram Operating, Inc. | Ram Energy, Inc. |
Ramco Corporation | Same (Affil: The GHK Company) |
Ramco Inc. | Ram Energy, Inc. |
Ramco-NYL-1987 Limited Partnership | Ram Energy, Inc. |
Ranch Oil Company | Ranch Royalty Company |
Ranch Royalty Company | Same |
Range Resources Corp. | Same (Ft. Worth) |
Rankin Oil Company | Hydrogen Energy Corporation |
RATEX Resources Incorporated | Same |
Ratliff Exploration Company | TXO Production Corp. |
Ray Resources Corporation | Flying Diamond Oil Corp. |
Razor Oil Company | Same |
RB Operating, Inc. | Ram Energy, Inc. |
RDC, Inc. | Same (Subsid: Miramar Resources, Inc.) |
Reading & Bates Production Co. | Ram Energy, Inc. |
Rebel Exploration, Inc. | Same |
Red Eagle Resources Corp. | Lomak Petroleum, Inc. |
Red River Energy Inc. (Tulsa) | Beta Oil & Gas Inc. |
Red Rock Ranch | Same (Affil: The GHK Company) |
Redco Corporation | Arapaho Petroleum, Inc. |
Redfern Development Corp. | Flag Oil Corp. |
Redfern Oil Company | Flag Oil Corp. |
Redfern, Peter F. & Sons, Co. | Flag Oil Corp. |
Redwind Company | Same (Affil: The GHK Company) |
Redwind Trust A, B & C | Same (Affil: The GHK Company) |
Redwood Energy (USA) Ltd. | Same |
Regal Oil Company | Aminoil USA, Inc. |
Regency Exploration, Inc. | Oxford Consolidated, Inc. |
Reichhold Energy | Atlantic Richfield Company |
Reily Oil | Martin Exploration Mgt. Company |
Reiter-Foster | Same |
Remington Oil & Gas Corp. | Cal Dive International Inc. |
Reno Natural Gas Company | Tenneco Oil Company |
Reno Oil Company | Tenneco Oil Company |
Repello Oil Company | Sinclair Oil and Gas Company |
Republic Natural Gas Company | Mobil Oil Corporation |
Republic Resources, Inc. | Same (Grand Junction, CO) |
Reserve Natural Gas Company | ARKLA, Inc. |
Reserve Oil and Gas Company | Getty Oil Company |
Reserve Oil, Inc. | Getty Reserve Oil Inc. |
Reserve Petroleum Company | Getty Reserve Oil Inc. |
Resource America, Inc. | Same |
Resource Exploration, Inc. | Resource America, Inc. |
Resource Partners | Mission Resource Partners, L.P. |
Resource Services Corp. | Integrated Drilling & Exploration, Inc. |
Reunion Energy Company | Same (Subsid: Reunion Resources Company) |
Reunion Resources Company | Same |
Rialto Energy Inc. | Same (Affil: Torch Energy Corporation) |
Riata Energy Inc. (Amarillo) | SandRidge Energy, Inc. |
Richardson-Bass | Bass Producing |
Richfield Oil Company | Atlantic Richfield Company |
Richfield Oil Company of California | Richfield Oil Company |
Richland Resources Corp. | Same (Oklahoma City) |
Ricks Exploration, Inc. | Same (Subsid: Concho Oil & Gas Corp.) |
Ridgeway Arizona Oil Corporation | Same (Subsid: Enhanced Oil Resources, Inc.) |
Ridgeway Petroleum Corporation | Enchanced Oil Resoyrces, Inc. |
Rigel Energy Corp. | Same |
Rine Drilling and Exploration, Inc. | Todd, C.H., Inc. |
Rio Grande Oil Company | Atlantic Richfield Company |
Rio Nevada Energy, Inc. | Can West Exploration, Inc. |
RMR, Inc. | Texaco USA, Inc. |
Roadrunner Energy, Inc. | Brustan Petroleum Corp. |
Robertson, Corbin J. | Same (Operates: Quintana Pet.) |
Rock Hill Oil Company | Getty Oil Company |
Rock Island Oil & Refining Co., Inc. | Koch Industries, Inc. |
Rocksource ASA | Same (Oslo, Norway / Houston) |
Rocksource Energy Corporation | Same (Subsid: Rocksource ASA) – Houston |
Rockwell Drilling Company | RDC, Inc. |
Roden Oil Company | Houston Natural Gas Corp. |
Rodman Petroleum Corporation | Same |
Rodman-Noel | Rodman Petroleum Corporation |
Roeser and Pendleton | Young, Marshall R. |
Root Petroleum Corporation | AMOCO Production Company |
Ro-Pen Royalty | Young, Marshall R. |
Rosewood Resources, Inc. | Same |
Ross Production Company | Nerox Energy Corporation |
Rowan Oil & Drilling Company | Texas Pacific Oil Company |
Roxana Oil Company | Shell Oil Company, Inc. |
Roxana Petroleum Company | Shell Oil Company |
Roxana Resources, Ltd. | Same |
Royal Producing Company | DEKALB Energy Company |
Royalties Management Company | Houston Royalty Company |
RTZ Corp. | Same |
Rubicon Company, LP | Same (Affil: Torch Energy Corporation) |
Rubicon Oil and Gas LLC | Same (Midland) |
Rust Oil Corporation | Same |
RVO Petroleum Co. | Getty Reserve Oil, Inc. |
Rycade | Same |
S | |
Saba Petroleum Corp. | Greka Energy Corp. |
Sabacol Inc. | Same (Subsid: Greka Energy Corp.) |
Sabine Corporation | Pacific Enterprises Royalty Company |
Sabine Production Company | Sabine Corporation |
Sabine Royalty Corporation | Sabine Corporation |
Salamander Energy PLC | Same (London) |
Salamon Inc. | Same |
Salt Lake Refining Company | California Company, The |
Saltmount Oil Company | Midwest Oil Corporation |
Saltmount-Midwest Oil Company | Amoco Production Company |
Samedan Oil Corporation | Same (Subsid: Noble Affiliates Inc.) |
Samson International Company | Same |
Samson Investment Company | Same (Affil: Samson Resources Corporation) |
Samson Natural Gas Company | SNG Production Company |
Samson Natural Resources Corporation | Same (Subsid: Samson International Company) |
Samson Resources Corporation | Samson International Company |
Samsung Oil & Gas USA Corp. | Same (Subsid: Samsung of S. Korea) |
San Diego Gas & Electric, Inc. | Same (Subsid: Sempra Energy, Inc.) |
San Jacinto | Exxon Company USA |
Sandefer Oil & Gas, Inc. | Sandefer Oil Company |
Sandefer Oil Company | Same |
Sandhawk Energy, LLC | Rocksource Energy Corp. |
SandRidge Energy, Inc. | Same (Oklahoma City, OK) |
SandRidge Midstream, Inc. | Same (Subsid: SandRidge Energy, Inc.) |
SandRidge Tertiary, LLC | Same (Subsid: SandRidge Energy, Inc.) |
Sanguine, LTD. | Same |
Santa Fe Andover Oil Company | Santa Fe Minerals, Inc. |
Santa Fe Braun Inc. | Same |
Santa Fe Energy Company | Santa Fe Energy Resources, Inc. |
Santa Fe Energy Partners LP | Santa Fe Energy Resources, Inc. |
Santa Fe Energy Resources, Inc. | Santa Fe Snyder Corp. |
Santa Fe Industries | Same |
Santa Fe International Company | Same |
Santa Fe International Corporation | Santa Fe International Company |
Santa Fe Minerals, Inc. | Same |
Santa Fe Pacific Corp. | Same |
Santa Fe Snyder Corp. | Devon Energy Corp. |
Santa Fe Southern Pacific Corp. | Santa Fe Pacific Corp. |
Santiago | Texas American Oil Corp. |
Santo Resources, Inc. | Chesapeake Mid-Continent Corp. |
Santos Americas and Europe Corporation | Same (Subsid: Santos, Ltd.) (Houston) |
Santos Ltd. | Same |
Santos USA Corp. | Same (Subsid: Santos, Ltd.) (Houston) |
SAP Acquisition, LLC | Same (Subsid: Chesapeake Energy Corp.) |
Sapient Energy Corp. (Tulsa) | Chesapeake Energy Corporation |
Sara Oil & Gas, Inc. | Same (Oklahoma City) |
Saratoga Resources, Inc. | PrimeEnergy Corporation |
Sarkeys | Sabine Production Company |
Savoy Exploration, Inc. (Michigan) | Same |
Savoy Oil & Gas, Inc. | Savoy Exploration, Inc. |
Saxon Oil Company | Hallwood Energy Corporation |
Saxon Oil Development Partners | Hallwood Energy Partners, L.P. |
Saxony Corporation | Same (Affil: Meridian Oil Inc.) |
Scana Corp. | Same |
Scana Petroleum Resources, Inc. | Same (Subsid: Scana Corp.) |
Schermerhorn | Anderson-Prichard Oil Company |
Schlacter, David A. | Same |
Schraeder Oil Company | Phillips Petroleum Company |
Schroeder Oil and Gas Corp. | High Plains Oil Corporation |
Scissor Tail Energy LLC | Copano Energy LLC |
Scope, Inc. | Same |
Scurlock Oil Company | Same (Subsid: Ashland Oil Inc.) |
Scurlock Permian Corp. | Same (Subsid: Ashland Oil Inc.) |
Seaboard Oil & Gas Company | Texaco-Seaboard, Inc. |
Seaboard Oil Company | Same |
Seafeld Resources | Same (Affil: Torch Energy Corporation) |
Seagull Energy Corporation (Houston) | Ocean Energy, Inc. |
Seahawk Capital Corporation | Same |
Seahawk Oil International | Seahawk Capital Corporation |
Seal Petroleum Corporation | Comex Marine Service |
Search Drilling | Providence Oil & Gas Corp. |
Search Exploration and Dev. Co. | Same |
Seaside Oil Company | Phillips Petroleum Company |
Secom General Corp. | Same |
Seitel Inc. | Same (Houston) |
Seminole Pipeline Company | Enterprise Products Partners, L.P. |
Sempra Energy International, Inc. | Same (Subsid: Sempra Energy, Inc.) |
Sempra Energy Resources, Inc | Same (Subsid: Sempra Energy, Inc.) |
Sempra Energy Solutions, Inc. | Same (Subsid: Sempra Energy, Inc.) |
Sempra Energy Trading Company | Same (Subsid: Sempra Energy, Inc.) |
Sempra Energy Utility Ventures, Inc. | Same (Subsid: Sempra Energy, Inc.) |
Sempra Energy, Inc. (San Diego, CA) | Same |
Seneca Oil Company | Same (Subsid: Kaiser-Francis Oil Company) |
Seneca Resources Corp. | Same |
Seven Seas Petroleum, Inc. | Same |
SEW Oil Corporation | American Petrofina, Inc. |
SGO Petroleum Inc. | BRG Petroleum, Inc. |
Shaffer Oil & Refining Company | Deep Rock Oil Corp. |
Shamrock Oil & Gas Corp. | Diamond Shamrock Corp. |
Shamrock Pipeline Corp. | Diamond Shamrock Exploration Co. |
Shawnee Oil and Gas | Devon Energy Corp. |
Shell Continental Companies | Same |
Shell Oil Company, Inc. | Same (Subsid: Royal Dutch/Shell) |
Shell Petroleum Company, Inc. | Shell Oil Company, Inc. |
Shell Petroleum Corp. | Shell Oil Company, Inc. |
Shell Western E & P Inc. | Shell Continental Companies |
Shell Western Expl. & Prod., Inc. | SWEPI |
Shenandoah Oil Corporation | Mesa, Inc. |
Sheridan California Energy Inc. | Same (Affil: Sheridan Energy, Inc.) |
Sheridan Energy, Inc. | Same (Houston) (Subsid: Calpine Corp.) |
Shield Oil Company | Amoco Production Company |
Shore Oil | Same (Affil: Torch Energy Corporation) |
Shoreline Petroleum Corporation | Producing Properties, Inc. |
Siebens Oil & Gas | Dome Petroleum Corp. |
Siebens Oil & Gas Company | Texaco USA, Inc. |
Signal Company | Signal Oil and Gas Company |
Signal Oil and Gas Company | Burmah Oil and Gas Company |
Silver Eagle Resources, Ltd. | Ocean Energy, Inc. |
Silverridge Corp. | Same |
Simba Energy Corp. | Same |
Sinclair Consolidated Oil Corp. | Sinclair Oil Corporation |
Sinclair Gulf Corp. | Sinclair Consolidated Oil Corp. |
Sinclair Oil & Refining Corp. | Sinclair Oil Corporation |
Sinclair Oil and Gas Company | Sinclair Oil Corporation |
Sinclair Oil Corporation | Atlantic Richfield Company |
Sinclair Oil Corporation | Same |
Sinclair, William D., Inc. dba Sinclair Oil Properties | Bearcat Land, Inc. (Oklahoma City) |
Sipco, Inc. | Chevron USA, Inc. |
Skaer Enterprises, Inc. | Willard Pease Oil & Gas Co. |
Skelly Oil Company | Getty Oil Company |
Skyhawk Energy Affiliates, Inc. | Cutlass Corporation |
SKZ, Inc. | Zilkha Energy Company |
SLAPCO (South Louisiana Prod. Co) | Celeron Oil and Gas Company |
Slick Oil Company, The | Slick-Urschel Oil Company |
Slick-Moorman Trustees | Same |
Slick-Urschel Oil Company | Slick-Moorman Trustees |
Sloan Acquisition Corp. | BayCorp Holdings Ltd. |
Sloan Group, Ltd. | Same (NH) |
Smart Exploration, Inc. | Cannon Energy, Inc. |
Smith & Company | Same |
Smith Development Corporation | Petrodynamics, Inc. |
Smith Energy Associates, Ltd. | Same |
SMR Energy Income Funds | Same |
SMR Natural Gas Ventures, Inc. (Houston) | Same (Subsid: SMR Energy Income Funds) |
SMR Property Management, Inc. | SMR Natural Gas Ventures, Inc. |
SND Energy Company, Inc. | Petrotech Energy Group, Inc. |
SNG Production Company | Same (Affil: Samson Resources Corporation) |
Snyder Oil Corporation | Santa Fe Snyder Corp. |
Snyder Operating Partnership, L.P. | Snyder Oil Corporation |
Socony | Mobil Oil Corporation |
Socony Mobil Oil Company, Inc. | Mobil Oil Corporation |
Socony Vacuum Oil Company | Mobil Oil Corporation |
Sohio Petroleum Company | Standard Oil Production Company |
Solarex | Amoco Production Company |
Sonat Exploration Company | Same (Subsid: Sonat, Inc.) |
Sonat Minerals, Inc. | Sonat, Inc. |
Sonat, Inc. | El Paso Energy, Inc. |
Sonora Acquisitions Corp. | Same (Subsid: American Exploration Company) |
Sooner Testing Inc. | Cudd Pressure Control |
Soquip | Same |
Sotex | Chevron USA, Inc. |
Sourgasco, Inc. | Conquest Exploration Company |
South California Petroleum Company | Scope, Inc. |
South Hampton Mineral Corp. | Same |
South Louisiana Production Co. (SLAPCO) | Celeron Oil and Gas Company |
South States Oil & Gas Company | Same (Subsid: American Exploration Company) |
South Texas Development Company | Sabine Royalty Corporation |
Southdown, Inc. | Same |
Southeastern Exploration Company | Enron Oil & Gas Company |
Southern California Gas Company | Same (Subsid: Sempra Energy, Inc.) |
Southern Cities Distributing Company | Arkansas Louisiana Gas Company |
Southern Crude Oil Purchasing Company | Stanolind Oil and Gas Company |
Southern Energy Resources | Crown Zellerbach Corp. |
Southern Mineral Corp. | PetroCorp, Inc. |
Southern Mineral Gas | Sonat, Inc. |
Southern Minerals | Sun Expl. & Prod. Company |
Southern Natural Resources Company | Sonat, Inc. |
Southern Petroleum Company | Sabine Production Company |
Southern Petroleum Exploration | Wiser Oil Company |
Southern Producing Company | Sinclair Oil Company |
Southern Production & Refining Company | Sonat, Inc. |
Southern Production Company | Atlantic Richfield Company |
Southern Union Company | Same (Austin) |
Southern Union Production Company | Supron Energy Corporation |
Southland Corporation | Same |
Southland Royalty Company | Meridian Oil, Inc. |
Southmark Corp. (MGF Assets) | Kaiser-Francis Oil Company |
Southwest Gas | Sonat, Inc. |
Southwest Gas Corp. | Same |
Southwest Gas Producing Company, Inc. | Devon Corporation |
Southwest Natural Production Company | ARKLA Exploration Company |
Southwest Royalties Inc. | Same |
Southwestern Gas Pipeline, Inc. | Same (Subsid: Devon Energy Corp) |
Southwestern Investments, Ltd. | Same (Affil: The GHK Company) |
Southwestern Production Corp. | Same |
Southwestern Refining Company, Inc. | Kerr-McGee |
Southwood Oil Company | Munance Corp. |
Sovereign Exploration Company | Bonanza Petroleum, Inc. |
Sparkman Production Company | Arch Petroleum Corp. |
Spectra Energy Corp. | Same (Subsid: Duke Energy Corp.) |
Spectrum 7 Energy Corporation | Harken Oil & Gas, Inc. |
Spectrum Gas Systems | Div. Of Hutton Oil & Gas |
Spectrum Oil and Gas Company | MCO Resources Spectrum Corp. |
Spike Box Land & Cattle Company Inc. | Same |
Spindletop Oil & Gas, Inc. | Prairie State Energy Company |
Spinnaker Exploration Company | Same (Houston) (Subsid: Norsk Hydro ASA) (*Dorchester Minerals Oklahoma Et al.) |
Spire International Corp. | Same |
Spirit Energy 76 | Same (Subsid: Unocal Corporation) |
SPR Energy Corporation | Ocean Energy, Inc. |
Spraberry Development Corp. | Midpar, LP |
Spring Holdings Inc. | Cross Timbers Oil Company |
Spring Resources, Inc. | Cross Timbers Oil Company |
Spurlock & Spines Exploration, Inc. | Hugoton Energy Corporation |
SRW, Inc. | Secom General Corp. |
ST. Joe Minerals | Primary Fuels |
St. Mary Energy Company | Same (Subsid: St. Mary Land & Exploration) |
St. Mary Land & Exploration Co. | Same (Denver) |
St. Mary Parish Land Company | St. Mary Land & Exploration Co. |
Stalwart Energy Company | Lumen Energy, Inc. |
Standard Life Oil & Gas Ltd. | Same (Affil: Torch Energy Corporation) |
Standard of Indiana | Amoco Production Company |
Standard of Texas | Chevron USA, Inc. |
Standard Oil Company of California | Chevron USA, Inc. |
Standard Oil Company of Indiana | Amoco Production Company |
Standard Oil Company of Kentucky | Chevron USA, Inc. |
Standard Oil Company of New Jersey | Exxon Corporation |
Standard Oil Company of New York | Mobil Oil Corporation |
Standard Oil Company of Ohio | Sohio Petroleum Company |
Standard Oil Company of Texas | Chevron USA, Inc. |
Standard Oil Company, Inc. | Amoco Production Company |
Standard Oil Production Company | BP Exploration Inc. |
Stanolind Oil & Gas Company | Pan American Petroleum Corp. |
Star Oil & Gas Acquisitions, Ltd. | Star Oil & Gas Ltd. |
State Petroleum Corp. | Talisman Energy, Inc. |
Statoil, Inc. | Same |
Stelor Resources Ltd. | Murwell Resources Ltd. |
Stephen Petroleum | F.E. Harper & Cornell |
Sterling Drill & Prod. Co., Inc | PrimeEnergy Management Corp. |
Sterling Energy Ltd. | Same (Subsid: Sterling Energy, plc U. K.) |
Sterling Oil & Gas | Tenneco Oil Company |
STEX Energy Company | Same |
Stocker Resources, Inc. | Same (Subsid: Plains Resources, Inc.) |
Stone Energy Corp. | Same (Lafayette, Denver) |
Stonehenge Petroleum Corp. | Inland Fuels Corporation |
Storm Cat Energy Corp. | Same |
Stroud Energy, Inc. | Range Resources Corporation |
Sugar Creek Oil & Gas, Inc. | Ventura Energy, Inc. |
Summit Petroleum Corporation | Midland Resources, Inc. |
Summit Resources, Ltd. | Paramount Resources, Ltd. |
Sun | Sun Company, Inc. |
Sun Calvert Company | Sun Oil Company |
Sun Company, Inc. | Sunoco, Inc. |
Sun Company, Inc. (E&P Assets) | Sun Expl. & Prod. Company |
Sun Energy Partners, LP | Kerr-McGee Corporation |
Sun Expl. & Prod. Company | Oryx Energy Company |
Sun Oil Company | Sun Company, Inc. |
Sun Oil Company of Ohio | Sun Company, Inc. |
Sun Oil Line Company | Sun Oil Company of Ohio |
Sun Production | Sun Company, Inc. |
Sunac Petroleum Corp. | Sunset International Pet. Corp. |
Sunbelt Energy Inc. | Interamerican Corp. |
Sunco Trucking Company | Key Energy Group, Inc. |
Sundance Canada | Soquip |
Sunoco Energy Inc. | Same |
Sunoco, Inc. | Same |
Sunoma Energy, Inc. | Same |
Sunoma, Inc. | Chesapeake Energy Corp. |
Sunray DX Oil Company | Sun Company, Inc. |
Sunray Mid-Continent Oil Company | Sunray DX Oil Company |
Sunray Oil Corporation | Sunray DX Oil Company |
Sunset International Petroleum Corp. | Sipco, Inc. |
Sunshine Mining | Same |
Sunwing Energy, Inc. | Ivanhoe Energy, Inc. |
Superior Energy Services, Inc. | Same |
Superior Oil Company | Mobil Oil Corporation |
Supnev, Inc. | Superior Oil Company |
Supron Energy Corporation | Union Texas Petroleum Corp. |
Surprise Oil Corporation | Berry Petroleum Corporation |
Sweet Corporation | Oklahoma Acquisition Corp. |
SWEPI | Same |
Synthesis Energy Holding Inc. | Same (Suibsid: Synthesis Energy Systems Inc. |
T | |
T & L Oil Company | Texaco USA, Inc. |
Taeping Company | Jerry Chambers Exploration Co. |
Talisman Energy, Inc. | Same |
Tall Grass Services, LLC | Same (Sbusid: Devon Energy Corp.) |
Tamborine Holdings Inc. | Synthesis Energy Holdings Inc. |
Tamm Oil & Gas Corp. | Same (Reno, NV / Calgary) |
Tana Production Corporation | Texaco USA, Inc. |
Tandem Energy Holding, Inc. | Same (Subsid: Platinum Energy Resources, Inc.) |
Tannehill Oil Company | Berry Petroleum Corp. |
Tarasol Ventures Inc. | Founders Energy Ltd. |
Tarragon Oil & Gas, Ltd. | Same |
Tatonka Oil and Gas Inc. | Same (Denver) |
Taurus Exploration U.S.A., Inc. | Energen Resources Corporation |
Taurus Exploration, Inc. | Taurus Exploration U.S.A., Inc. |
Taylor Energy Company, LLC | Same (New Orleans) |
Taylor Refining | Tenneco Oil Company |
Taylor, John A. | Plains Resources, Inc. |
TBI Acquisitions Inc. | Brown, Tom Inc. |
TBI Exploration, Inc. | Brown, Tom Inc. |
TCPL Resources U.S.A. Ltd. | Wessely Energy Company |
TCW Group, Inc. | Same (Los Angeles) |
TCW Investment Management Group, Inc. | Same (Subsid: TCW Group, Inc.) |
TDC Energy Corp. | Same (New Orleans) |
Tea Australia Inc. | Same (Affil: Torch Energy Corporation) |
Teal Exploration, Ltd. | Same |
Teal Gathering Company | ARKLA Exploration Company |
Teal Pipeline Company | Same (Subsid: ARKLA Exploration Company) |
Tejas Gas Corp. | Kinder Morgan Energy Partners, LP |
Tejas Gas, LLC | Kinder Morgan Energy Partners, LP |
Tejas Natural Gas Liquids, LLC | Same (Subsid: Shell Oil Company) |
Tejas Oklahoma Marketing Company | Tejas Oklahoma Marketing, LLC |
Tejas Oklahoma Marketing, LLC | Same (Subsid: Tejas Gas Corp.) |
Tejas Power Corp. | TPC Corp. |
Tekoil Corp. | Consolidated Oil & Gas, Inc. |
Tema Oil Company | Mesa, Inc. |
Temex Energy, Inc. | TGX Corporation |
Temple Exploration, Inc. | Husky Energy, Inc. |
Tenkay Resources, Inc. | Same |
Tenneco Oil Company | Liquidated (See Notes in back) |
Tennessee Gas Transmission Company | Tenneco Oil Company |
Tensas Delta Company | Wheless Drilling Company |
Terra Resources, Inc. | Pacific Enterprises Oil Company |
Terry Energy, Inc. | Terry Petroleum Company |
Terry Operating Company | Terry Petroleum Company |
Terry Petroleum Company | Same |
Terry Resources Corp. | Terry Petroleum Company |
TES Acquisitions Corp. | Same (Subsid: American Exploration Company) |
Tesoro E & P Company, L.P. | EEX Onshore, Inc. |
Tesoro Petroleum Corporation (Partial) | Shell Oil Company |
Tesoro Petroleum Corporation (San Antonio) | EEX Corp. |
Tetco | Same |
TEX/CON Oil & Gas Company | PG&E Resources Company |
TEX/CON Oil & Gas Company | Standard Oil Production Company |
Texaco Exploration and Production Inc. | Same (Subsid: Texaco USA, Inc.) |
Texaco Oils, Inc. | Texaco USA, Inc. |
Texaco Producing Inc. | Texaco Exploration and Production Inc. |
Texaco TPC Inc. | Texaco USA, Inc. |
Texaco USA, Inc. | Chevron Texaco Corp. |
Texaco, Inc. | Texaco USA, Inc. |
Texaco-Seaboard, Inc. | Texaco USA, Inc. |
Texas American Oil Corporation | Devon Energy Corp. |
Texas British Oil & Gas Corp. | Anvil Petroleum Corp. |
Texas Company, The | Texaco USA, Inc. |
Texas Eastern Transmission Company | Tetco |
Texas Fuel Company | Texaco USA, Inc. |
Texas Gas | Same |
Texas Gas Company | Texaco USA, Inc. |
Texas Gas Exploration Company | CSX Oil & Gas Corporation |
Texas Gas Producing Company | Reserve Oil, Inc. |
Texas Gasmark, Inc. | Delhi Gasmark, Inc. |
Texas Gulf Oil Company | Texas Gulf Production Company |
Texas Gulf Production Company | Sinclair Oil Corporation |
Texas International Company | Phoenix Resources Companies, Inc. |
Texas Int’l Petroleum Company | TIPCO, Inc. |
Texas Land and Mortgage Company | Andover Oil Company |
Texas Meridian Resources, Ltd. | Same |
Texas National Petroleum | Union Oil Company |
Texas Northeast Oil & Gas Company | Moore McCormack Company |
Texas Oil & Gas Corporation | TXO Production Corp. |
Texas Oils Inc. | Texaco Producing Inc. |
Texas Pacific Oil Company | Sun Expl. & Prod. Company |
Texas Utilities Companies | Same |
Texasgulf | Elf Aquitaine |
TexCal Energy, LLC | Venoco, Inc. |
Texco Energy Corporation | Egret Energy Corporation |
Texneft Inc. | Ocean Energy, Inc. |
Texoil, Inc. | Same (Houston) |
Texoma | Apache Corporation |
Texoma Trust, Ltd. | Cornell Oil Company |
Texota | Same |
Tex-Star Oil & Gas Corp. | Texas Oil & Gas Corporation |
Texstar Petroleum Inc. | Same (Subsid: Benz Energy Inc.) |
Textron Investment Management Co. | Paul Revere Investment Management Corp. |
TGX Corporation | Sheridan Energy, Inc. |
The Oil & Gas Company | W.P. Nelson & Company |
The Texas Company | Texaco USA, Inc. |
Theomis Energy Company | Phoenix Energy Company |
Thermal Exploration, Inc. | Washington Energy Resources Company |
Thomas Drilling Company | Mack Energy Company |
Thomas, Nelson R. | Same |
Thousand Oaks Development Corporation | Ocean Energy, Inc. |
Three States | Delhi-Taylor Oil Company |
Threefarms | Same (Affil: The GHK Company) |
Thunder Creek Gas Services LLC (Wyoming) | Same (JV: K-N Energy, Inc/Devon Energy Corp.) |
Tidal Oil Company | Tidewater Oil Company |
Tide Water Associated Oil Co. | Tidewater Oil Company |
Tide West Oil Company | HS Resources, Inc. |
Tidewater Associated Oil Company | Getty Oil Company |
Tidewater Oil Company | Getty Oil Company |
Tidewater Oil Company | Tide Water Associated Oil Co. |
Tierra Petroleum Corp. | Georgetown Exploration Inc. |
Tikal Resources Corp. | Same (New York City) |
Tikal Resources Inc. | Tikal Resources Corp. |
TIPCO, Inc. | Texas International Company |
Tipperary Oil & Gas Corp. | Same |
Tipperary Petroleum Company | Tipperary Oil & Gas Corp. |
Titan Exploration Inc. | Pure Energy Resources Inc. |
TNC Media Inc. | Gothic Energy Corporation |
TOC Acquisitions Corp | Same (Subsid: American Exploration Company) |
TOC Rocky Mountains | Amoco Production Company |
Todd, C.H. Inc. | Same |
Toga Petroleum Company | Same |
TOGO Offshore Inc. | Same (Affil: Torch Energy Corporation) |
Toklan Oil and Gas Corporation | Cobb Oil and Gas Company |
Toklan Oil Company | Kirby Petroleum Corp. |
Tonkowa Gas Processing Company | Koch Midstream Processing Company (Subsid: Koch Industries, Inc.) |
Torch Canada | Same (Affil: Torch Energy Corporation) |
Torch Energy Advisors Inc. | Same (Affil: Torch Energy Corporation) |
Torch Energy Associates | Same (Affil: Torch Energy Corporation) |
Torch Energy Corporation | Same |
Torch Energy Marketing, Inc. | Same (Affil: Torch Energy Corporation) |
Torch Energy Royalty Trust | Same (Affil: Torch Energy Corporation) |
Torch Illini Ventures Inc. | Same (Affil: Torch Energy Corporation) |
Torch Limited Partnership | Same (Affil: Torch Energy Corporation) |
Torch Oil and Gas Company | Same (Affil: Torch Energy Corporation) |
Torch Operating Company | Same (Affil: Torch Energy Corporation) |
Torchmark Corporation | Same (Affil: Torch Energy Corporation) |
Toreador Resources Corporation | Same (Dallas) |
Tornado Resources Ltd. | Same |
Tosco Corp. | Phillips Petroleum Company |
Total Minatome Corporation | Energen Resources Corporation |
Total Petroleum (Canada) | Rigel Energy Corp. |
Total Petroleum (North America), Ltd. | Liquidated (See Notes in back) Producing Assets |
Total Petroleum (North America), Ltd. | Ultramar Diamond Shamrock Corp. Refining and Marketing Assets |
Total Petroleum, Inc. | Same |
Total Resources Ltd. | Same |
Total, SA (Based in France with U.S. Assets) | Same |
Towner Petroleum Corp. | Zilkha Energy Company |
TPC Corp. | Same (Subsid: Harken Energy Corp.) |
TPC&C & Frankfort | Texas Pacific Oil Company |
TPEX Exploration, Inc. | Kestrel Energy, Inc. |
Trafalgar House Oil and Gas Inc. | Hardy Oil & Gas USA Inc. |
Transamerica Development Co. | Same |
Transco Energy Company | Same |
Transcontinental Energy & Drilling | TXP Operating |
Transcontinental Gas Pipe Line Company | Transco |
TransGlobe Oil & Gas Corp. | Same |
Transierra Exploration Corp. | Belco Petroleum Corporation |
Transitory Corp. | GHK Company, The |
TransOcean Oil Company | Mobil Oil Corporation |
Transocean, Inc. | Same (Houston) |
Transok Gas Company | Transok Gas, LLC Same (Subsid: Enogex Inc.) |
Transok Gas Processing Company | Transok Gas Processing, LLC |
Transok Gas Processing, LLC | Same (Subsid: Enogex Inc.) |
Transok Gas, LLC | Same (Subsid: Enogex Inc.) |
Transok, Inc. | Transok, LLC |
Transok, LLC | Same (Subsid Enogex Inc.) |
Trans-Texas Investments Inc. | United Trans-Western, Inc. |
Trans-Western Exploration, Inc. | United Trans-Western, Inc. |
Travellers, The (Ins. Co) | The Prospect Company (O&G int.) |
Trend Exploration Company | Trend Exploration I, LLC |
Trend Exploration I, LLC | Same |
Trendwell Energy Corporation | Same |
Trendwell Oil Corporation | Trendwell Energy Corporation |
Trexco Resources, Inc. | Balcron Oil Company |
Triana Energy Holdings LLC | Same |
Tribune Oil | Sabine Production Company |
Trice Production Company | Diamond Shamrock Exploration Co |
Trice Properties | Diamond Shamrock Exploration Co |
Trident Acquisition Corp. | Warren Intrastate Gas Supply, Inc. |
Trident Gas Marketing, Inc. | Warren Gas Marketing, Inc. |
Trident NGL Pipeline Company | Warren NGL Pipeline Company |
Trident NGL, Inc. | Warren NGL, Inc. |
TriDimension Energy LLC | Same (Dallas) |
Trinidad Oil | Texaco USA, Inc. |
Trinity Energy Resources, Inc. | Same (Houston) |
Trinity Gas Corp. | Trinity Energy Resources, Inc. |
Trinity Oil & Gas | Questa Oil & Gas, Inc. |
Tri-Quest Energy Corp. | Same (Subsid: Corker Resources Inc.) |
Tri-Quest Energy Ltd. | Tri-Quest Energy Corp. |
TriSearch Inc. | National Energy Group, Inc. |
Tri-Service Drilling Company | Midland Southwest Corporation |
Triton Oil & Gas Corp. | Same |
Triton Oil & Gas Corp. of Delaware | Worldwide Energy Corporation |
Triton Producing Company | Same |
Tri-Valley Corporation | Same |
Tronz-Om US and Canada, Ltd. | Blessure Hydrocarbons Corp. |
Trousil and Associates Inc. | Same |
Trustee Holding Corporation | Same (Affil: The GHK Company) |
TS, Inc. | Home Petroleum Corporation |
Tsrebol Oil Company | Rodman-Noel |
Tucker Drilling Company | Patterson Energy, Inc. |
Turbo Resources, Ltd. | Canadian Turbo, Inc. |
Turnan Oil Company | Mid-States Oil Corporation |
Tutamian Production Corporation | Same |
Tuthill & Barbee | Hugoton Energy Corp. |
Twelve Oil and Gas Corp. | Twelve Resources, Inc. |
Twelve Operations Company | Twelve Oil and Gas Corp. |
Twelve Operations Company | Twelve Oil of Arkansas, Inc. |
Twelve Resources, Inc. | Same |
Twelve Saddles Land and Cattle Company | Twelve Operations Company |
Twin Eagle Petroleum Corp. | Petromark Resources Company |
Twin Oil Company | Atlantic Richfield Company |
Twin Richfield Oils Ltd. | Glencoe Resources Ltd. |
TXCO Resources Inc. | Same (San Antonio) |
TXL Oil Corp. | Texaco USA, Inc. |
TXO Gas Marketing, Inc. | Delhi Gas Marketing, Inc. |
TXO Gas Ventures, Inc. | Delhi Gas Ventures, Inc. |
TXO Production Corp. | Marathon Oil Company |
TXOK Acquisition Inc. | Same (Subsid: Exco Resources Inc.) |
TXP Operating | Same |
U | |
U.S. Energy Corp. | Same |
U.S. Minerals Exploration | Same |
U.S. Oil | Mecom Oil |
U.S. Smelting Production Co. | U.V. Industries |
U.S. Steel Corp. | Marathon Petroleum Company |
U.V. Industries | Tenneco Oil Company |
Ultramar Corporation | Ultramar Diamond Shamrock Corp. |
Ultramar Diamond Shamrock Corp. | Valero Energy Corporation |
Ultramar, Inc. | Ultramar Diamond Shamrock Corp. |
UMC Petroleum Corporation | Ocean Energy Resources, Inc. |
UMC Petroleum Resources Corporation | UMC Petroleum Corporation |
Unetech International Corp. | Same (Subsid: CanArgo Energy Corp) |
Unibar Energy Services Inc. | Same |
Unical | Union Oil Co. of California |
Unicon Producing Company | Meridian Oil Production Company |
Unified Oil Company | Allied Chemical Corporation |
Unioil | Same (Subsid: Petroleum Development Corp) |
Uniol Energy Corporation | Gallent Oil Company |
Union Cal Inc. | Union Oil Co. of California |
Union Light, Heat and Power Inc. (KY) | Duke Energy Corp. |
Union O & G of Louisiana | Union Texas Petroleum Corp. |
Union of Louisiana | Union Texas Petroleum Corp. |
Union of Texas | Union Texas Petroleum Corp. |
Union of Texas Petroleum | Union Texas Petroleum Corp. |
Union Oil Co. of California | Chevron Texaco Corp.B2903 |
Union Oil Co. of California | Unocal Corporation |
Union Oil Explorations Ltd. | Same (Affil: Torch Energy Corporation) |
Union Oil of California | Union Oil Co. of California |
Union Pacific Resources Company | Same (Subsid: Union Pacific Resources Group Inc.) |
Union Pacific Resources Group Inc. | Same (Subsid: Anadarko Petroleum Corp.) |
Union Petroleum of Texas | Union Texas Petroleum Corp. |
Union Producing Company | Penzoil Company |
Union S & O | Union Texas Petroleum Corp. |
Union Texas International Corp. | Same |
Union Texas Natural Gas Corp. | Union Texas Petroleum Corp. |
Union Texas Petroleum Corp. | Union Texas International Corp. |
Union Texas Petroleum Corp.(US Onshore) | Meridian Oil Inc. |
Unit Corporation | Same |
Unita Gas & Oil, Inc. | Coconino SMA, Inc. |
United American Life Ins. (O&G) Assets | Same (Affil: Torch Energy Corporation) |
United Carbon Company | United Carbon Producing Co., Inc. |
United Carbon Producing Co., Inc. | Ashland Oil & Refining Company |
United Energy Resources, Inc. | Midcon |
United Gas, Inc. | Pennzoil Company |
United Investors Management Co. | Same (Affil: Torch Energy Corporation) |
United Meridian Corp. | Ocean Energy, Inc. |
United Petroleum Corporation (Knoxville, TN) | Same |
United Producing Company | Same |
United States Borax & Chemical Corp. | Same |
United States Exploration, Inc. | Noble Energy Inc. |
United Trans-Western, Inc. | Same |
Universal Consolidated | Chevron USA, Inc. |
Universal Resources Corporation | Questar Exploration and Production Company |
UNOCAL Corporation | Chevron Corporation |
UNOCAL Corporation (San Juan and Permian Assets) | Pure Energy Resources, Inc. (New entity 2001) |
USM Oil Company | Olix Industries, Inc. |
Utah International, Inc. | Ladd Petroleum Corp. |
Utah Oil Company | Amoco Production Company |
Utah Oil Refining Company | Amoco Production Company |
V | |
VAL Energy, Inc. | Same |
Valero Energy Corporation | Same (San Antonio) |
Vantage Point Energy, Inc. | ConVest Energy Corp. |
Vantas Energy Corp. | Same (Subsid: PG&E) |
Varco International, Inc. | National-Oilwell Varco, Inc. |
Varn Oil Company | Same |
Vastar Resources, Inc. | BP Amoco Inc. |
Vaughn Management, Inc. | Same |
Vaughn Petroleum, Inc. | Vaughn Management, Inc. |
Velasco Gas Company, LP | Same (Affil: Torch Energy Corporation) |
Velvet Exploration, Ltd. (Calgary) | El Paso Oil & Gas Canada Acquisition Corp. |
Venoco, Inc. | Same (Denver) |
Ventura Energy, Inc. | Same |
Venucot Resources, Inc. | Diverse Energy Investment, Inc. |
Venus Exploration Inc. | PYR Energy Corp. |
Venus Oil Company | Same |
Vesta Energy Company | Edisto Resources Corp. |
Vickers Petroleum Company, Inc. | Vickers Refining Company, Inc. |
Vickers Refining Company, Inc. | Total Petroleum, Inc. |
Victory Oil & Gas Company | P.P. M. Investments (USA), Inc. |
Viersen & Cochran | Same |
Viersen & Sant | Same (Affil: Viersen & Cochran) |
Viersen Land & Royalty Co. | Same (Affil: Viersen & Cochran) |
Viersen Oil & Gas Co. | Same (Affil: Viersen & Cochran) |
Viking Oil Ltd. | Sun Company, Inc. |
Viking Petroleum Reserves, Inc. | Same |
Viking Petroleum, Inc. | Viking Petroleum Reserves, Inc. |
Villines-Gibson Oil and Gas | Courtaulds North America Inc. |
Vintage Petroleum Inc. | Same (Subsid: Occidental Petroleum Corp.) |
Vision Energy Inc. | Same (Affil: Seitel Inc.) |
Vista Energy Resources Inc. (Midland) | Prize Energy Corp. |
Volunteer Energy, LLC (Tulsa) | First Energy Corp. |
Volvo Petroleum | Same |
Voyager Energy Inc. | Poco Petroleum Ltd. |
Voyager Petroleum | Nu-West Development |
VP Oil Inc. | National Energy Group Inc. |
Vulcan Minerals & Energy Inc. | Same (Subsid: Regent Group – Houston) |
Vysis, Inc. | Amoco Production Company |
W | |
W & T Offshore, Inc. | Same (Houston) (Affil: Kerr-McGee Corp.) |
Wacker Oil Inc. | Seagull Energy Corp. |
Wagner Oil Company | Same (Ft. Worth) |
Wahlenwier Oil Company | Tenneco Oil Company |
Wainoco Oil Corp. | Same |
Walker Energy Partners, MLP | Texas Meridian Resources, Ltd. |
Waller County Minerals Company | Ocean Energy, Inc. |
Ward Petroleum Corp. | Same (Enid, OK) |
Warren American Oil Company (Tulsa) | Same (Subsid: NGC Corporation) |
Warren Arkansas Gathering, Inc. (Houston) | Same (Subsid: NGC Corporation) |
Warren Energy Resources, Ltd. Pts (Houston) | Same (Subsid: NGC Corporation) |
Warren Energy, Inc. (Houston) | Same (Subsid: NGC Corporation) |
Warren Gas Liquids, Inc. (Houston) | Same (Subsid: NGC Corporation) |
Warren Gas Marketing, Inc. (Houston) | Same (Subsid: NGC Corporation) |
Warren Intrastate Gas Supply, Inc. | Same (Subsid: NGC Corporation) |
Warren NGL, Inc. (Houston) | Same |
Warren NGL, Pipeline Co. (Houston) | Same |
Warren Petroleum Company | Sipco, Inc. |
Warren-Bradshaw | Chevron USA, Inc. |
Warrior Energy Services Corporation | Superior Energy Services, Inc. |
Washington Energy Resources Company | Cabot Oil & Gas Corporation |
Washita Oil & Gas, LLC | Same |
Washita Production Company | ONEOK Resources Company |
Waterford Energy, Inc. | Kaiser-Francis Oil Company |
Watson Geophysics, Inc. | MCOR Oil Development, Inc. |
Watson Oil Corporation | MCOR Oil Development, Inc. |
Watson Oil Petroleums Exploration, Inc. | MCOR Oil Development, Inc. |
Watson Petroleums Exploration, Inc. | Ocean Energy, Inc. |
WCX Corporation | Mesa, Inc. |
Webb Resources | Standard Oil Production Company |
WEC Acquisition Corp. | Whittier Energy Corp. |
Weco Development Corporation | Worldwide Energy Corporation |
Welchem, Inc. | Amoco Production Company |
Wellington Oil Company | Texaco USA, Inc. |
Wessely Energy Co. | NGC Energy Co. |
West America Corp. | Same |
Westates Petroleum | Hamilton Dome |
Westates Petroleum | Santa Fe Industries |
Westbrook Energy Corp. | Manhattan Resources Corp. |
Westcoast Energy, Inc. | New World Development Co., Ltd. |
Westcoast Petroleum Ltd. | Numac Oil & Gas Ltd. |
Western Crude Oil, Inc. | Reserve Oil and Gas Company |
Western Decalta | Loram International |
Western Dev. Co. of Del. | International Oil & Gas Corp. |
Western Energy Development Company | Oxford Consolidated, Inc. |
Western Energy Resources Inc. | OMNI Power Inc. |
Western Gas Processors, Ltd. | Same |
Western Gulf Oil Company | Chevron USA, Inc. |
Western Natural | El Paso Products Company |
Western Natural Gas | Atlantic Richfield Company |
Western Oil Fields, Inc. | Same |
Western Oil Sands, Inc. | Marathon Oil Corporation |
Western Petroleum Assoc. | Same |
Western Production Company | Black Hills Exploration and Production, Inc. |
Westport Oil & Gas Inc. | Belco Oil & Gas Corp. |
Westport Resources Corp. (Denver) | Kerr-McGee Corp. |
WGP, Inc. | Same (Subsid: Western Gas Processors, Ltd.) |
Whaley Company | Kewanee Oil Company |
Wheless Drilling Company | Same |
White Eagle International Oil Company | White Eagle International, Inc. |
White Eagle International, Inc. | Helmerich & Payne, Inc. |
White Shield Oil Company | Helmerich & Payne, Inc. |
Whiting Petroleum Corp. | Same (Subsid: IES Industries, Inc. – Denver) |
Whittier Energy Company | Whittier Energy Corp. |
Whittier Energy Corp. (Houston) | Sterling Energy, Inc. (Houston) |
Wilco Properties, Inc. | Same |
Wilcox Corporation | Tennco Oil Company |
Wilcox Oil Company | Tennco Oil Company |
Wilcox Oil Corporation | Tennco Oil Company |
Willard Pease Oil & Gas Co. | Pease Oil and Gas Company |
Williams Companies, The | Same |
Williams Energy Partners L.P. | Same (Affil: Williams Companies, Inc.) |
Williams, L.G., Oil Co., Inc. | Matrix Energy, Inc. |
Williamson, J.C. | Tenneco Oil Company |
Willimax | Shell Oil Company |
Wilshire | B-L Associates |
Wilshire Oil of California | Chevron USA, Inc. |
Windfohr Oil Company | Burnett Oil Company |
Windor Energy Group, LLC | Same (Affil: Gulfport Energy Inc. |
Windsor Petroleum | Southwestern Production Corp. |
Wintershall Energy Inc. | Same |
Wintershall Oil & Gas Company | American Petrofina, Inc. |
Wiser Oil Company (Dallas) | Forest Oil Corporation |
WO Exploration Inc. | Ocean Energy, Inc. |
WO Offshore Inc. | Ocean Energy, Inc. |
WOC Acquisition Company | Same |
Wolfson Oil Company | Sipco, Inc. |
Wolverine Exploration Company | Amerac Energy Corporation |
Womad Oil Company | Quebec Affiliates (North America), Ltd. |
Wood River Oil & Refinery | Rock Island Oil & Refining Company, Inc. |
Woodbine Petroleum, Inc. | Same (Subsid: Nycal Corp.) |
Woodley Petroleum | Pure Oil Company |
Woods Petroleum Corp. | Sonat Exploration Co. |
Woodside Petroleum, Ltd. | Same (Australian Co. with US Assets) |
Woodson Oil Company | Texas Pacific Oil Company |
World Fuel Services Corp. | Same |
Worldwide Energy Corporation | Triton Oil & Gas Corp. |
Wrather, J.D., Jr. | Same |
Wrightsman, C.J. | Moncrief, W.A. |
WRT Energy, Inc. | Same (Affil: DLB Oil & Gas, Inc.) |
WW Oil & Gas Inc. | Paco Integrated Energy, Inc. |
Wynn-Crosby 1994, Ltd. | Wynn-Crosby Energy, Inc. |
Wynn-Crosby Energy, Inc. | Petrohawk Operating Company |
Wyoming Montana & Indiana Petroleum | Western Petroleum |
XCL | See Exploration Company of Louisiana |
XCL, Ltd. | Same |
XOM | Same (Subsid: ExxonMobil Corp.) |
Xplor Corp. | Venus Exploration Inc. |
Xplor Energy Inc. (Houston) | Harken Energy Corporation |
XTO Energy Inc. | ExxonMobil Corp. |
XYZ | |
Yankee Production Corporation | Alfonso Production Company |
Yankee Resources, Inc. | Access Energy Corp. |
Yates Petroleum Corp. | Same (Artesia, NM) |
YNB Oil and Gas Inc. | Caravelle Petroleum, Inc. |
York & Harper | Tenneco Oil Company |
Young, Marshall R. | Young, Marshall R. Drilling Company |
Yount-Lee Oil Company | Amoco Production Company |
Yukon Trading Company, LLC | Same (Affil: JMA Energy Company, LLC) |
Zapata & Statco | Pennzoil Company |
Zapata Corp. | Norex Drilling, Inc. |
ZBX, Inc. | Matlin Petroleum Corporation |
ZCA Gas Gathering, Inc. | United States Exploration, Inc. |
Zenergy Inc. | Same (Tulsa) |
Zenergy Operating Company LLC | Same (Subsid: Zenergy Inc.) |
ZG Energy Corporation | Vantage Point Energy, Inc. |
Zilkha Energy Company | Sonat, Inc. |
Zoller & Danneberg, Inc. | Premier Resources, Ltd. |
Zuma New-Mexico Oil Corporation | Jackalope-New-Mexico Oil Co. |