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Companies starting with A.

293 oil & gas companies, each links to its full acquisition lineage and corporate successor.

• A & J Oil Company
• A & K Petroleum Company
• A-1 Bit & Tool
• A-2 Acquisitions Partnerships (1996 & 1997)
• A-2 Development and Production Company
• A-2 Energy and Exploration Partners, LLC
• A-2 Exploration Corp.
• A. F. D. Capital Group Inc.
• AA Development Corporation
• AA Energy Corporation
• AA Minerals Corporation
• Aaron Oil Corporation
• Abaca Oil Company
• Abacan Resource Corp.
• Abbeville Operating Corp.
• Aberdeen American Petroleum Company, Inc.
• Aberdeen Oil & Gas Corporation
• Aberdeen Petroleum Corporation
• Abney Oil Co.
• Abraxus Petroleum Corporation
• Acacia Natural Gas Corporation
• Acadi Energy Company
• Acadian Gas GP
• Access Energy Corp.
• Acquisition - VI Corporation
• Ada Belle Oil Company
• ADA Resources Corp.
• Adams Resources & Energy, Inc.
• Addax Petroleum Corporation
• Addington Brothers Mining Co.
• Adena Exploration
• Adobe Acquisition Corp.
• Adobe Oil and Gas Corp.
• Adobe Resources Corporation
• Adobe Royalty, Inc.
• AEC Gas Company
• AEC Gulf of Mexico Inc.
• AEC Oil and Gas (USA) Inc.
• AETNA Oil Co.
• Agate Petroleum Inc. (N. Dakota Properties)
• AGM Corp.
• Aikman Brothers, Inc.
• Aikman Oil Corp.
• Akin, Matthew
• Aladdin Oil Corp.
• Alagasco Energy Company, Inc.
• Alamo Inc.
• Alamo Oil & Gas LTD-I
• Alamo Oil & Gas LTD-II
• Alamo Petroleum, Inc.
• Alanman Energy, Inc.
• Alanmar Energy, Inc.
• Alanmar Oil Company
• Alaska Interstate Company
• Albantu Oil & Gas Corporation
• Alberta Energy Company, Ltd.
• ALCO Oil & Gas Corp.
• ALCOA, Inc.
• Alder Oil Company
• ALECO, Inc.
• Alene Oil Company
• Alexander Energy Corporation
• Alf Corporation (USA)
• Alf Energy Companies
• Alf Oil Company
• Alfonso Production Company
• Allegro Petroleum, Inc.
• Allen Oil Company
• Allen Oil Tools, Inc.
• Alliance Drilling Company
• Alliance Exploration Corporation
• Alliance Operating, Inc.
• Alliance Resources (USA) Inc.
• Allied Ashland Oil Company
• Allied Chemical Corporation
• Allied Consolidated Energy Inc.
• Allied Materials Corp.
• Allied Oil & Gas Corp.
• Allis-Chalmers Energy, Inc.
• Alminex Ltd.
• ALN Resources Corp.
• Alpha - Omega, Inc.
• Alpha Energy Corp.
• Alta Energy Corp.
• Altair Oil & Gas Company
• Alterio Resources Ltd.
• Altex Energy Corp.
• Altex Industries
• Altmark Energy Inc.
• Altura Energy, Ltd.
• Aluminum Company of America
• Amacan Resources Corp.
• Amalgamated Bonanza Petroleum Co.
• Amarex, Inc.
• Amarillo Minerals, Inc.
• Amarillo Oil Company
• Amax Oil & Gas, Inc.
• Amax Petroleum Corp.
• Amax, Inc.
• Ambassador Petroleum Corp.
• Amber Oil Company
• Amber Resources Co.
• Ambrit Energy Corporation
• AMCAN Oil Corp.
• AmCog Acquisition Corp.
• Amerac Energy Corporation (Houston)
• Amerada Corp.
• Amerada Hess Corporation (New York City)
• Amerada Petroleum Corp.
• American Corporate Resources, Inc.
• American Eagle Petroleums Ltd.
• American Energy Exploration Company
• American Exploration Company
• American Exploration Drilling
• American Exploration Gas Systems Corp.
• American Exploration Production Company
• American Independent Oil Company
• American International Petroleum Corp.
• American Liberty Oil Company
• American Marracaibo Oil Company
• American Nat'l Petroleum Co.
• American National Petroleum Co.
• American Natural Energy Corp.
• American Natural Gas Production Company
• American Natural Resources Corp.
• American Oil & Gas Inc.
• American Oil Company
• American Oil Company of Texas
• American Pacific International Corp.
• American Petrofina Co. of Tex.
• American Petrofina Co. of Texas
• American Petrofina, Inc.
• American Promax Inc.
• American Public Energy Company
• American Quasar Petro. Co. of N.M.
• American Republic Oil Company
• American Reserve Corp.
• American Resources of Delaware, Inc.
• American Royalty Petroleum Company
• American Trading & Production Corp.
• Americex, Inc.
• Ameriplor Corp.
• Ameroil Energy Corp.
• Amerox Acquisition Corp.
• Amex Oil Company
• AMINI Oil Company
• Aminoil USA, Inc.
• Aminoil, Inc.
• Amistad Land & Cattle Company, Inc.
• Amkan Acquisition Corp.
• Amoco
• AMOCO Oil Company
• AMOCO Production Company
• AMPOL Exploration Company
• AMPOLEX (USA) Inc.
• Amquest Corp.
• AMR Energy Corp.
• AMVEST Corp.
• AMVEST Osage Inc.
• Anaconda Gold and Silver Company
• Anaconda Mining Company
• Anadarko Land and Exploration Company
• Anadarko Petroleum Corporation
• Anadarko Production Company
• Anchor Bay Corp.
• Anderman/Smith Operating Co.
• Andermen Oils Wyoming, Inc.
• Anderson-Prichard Oil Company
• Anderson, Carl B.
• Anderson, Harold J., Inc.
• Andover Oil Company
• Andrews Production Company
• Anflo, Clar, Welfeit
• Angeles Corp.
• Anglo Energy, Inc.
• ANM Services Corp.
• ANR
• ANR Production Company
• Anran Corporation
• Anschutz Corporation (Denver)
• Anschutz Dunwoody Drilling Co. Inc.
• Anschutz Gold Coast Corp.
• Anschutz Investment Company
• Anschutz Overseas Corp.
• Anschutz Permain Corp.
• Anschutz Western Corp.
• Anschutz Wyoming Corp
• Anson Company
• AnSon Gas Corporation
• AnSon Production Corporation
• Antares Oil Corporation
• Antelope Gas Products Company
• Antelope Production Company
• Antero Resources Corp. (Denver)
• Antlers Enterprises Inc.
• Antonio Resources, Inc.
• Anvil Petroleum Corp.
• APA Corporation
• Apache Corporation (Houston)
• Apache Exploration Corporation
• Apache Oil Corporation
• Apache Petroleum Co., LP
• Apache Petroleum Partnerships
• APC Operating Company
• APCO, Inc.
• APD Company
• Apex Oil Company Inc.
• Apexco, Inc.
• APP Production Inc.
• Appalachian Gas Sale Inc.
• APX Corporation
• APX Western Corporation
• Aquataine
• Aquila Southwest Energy Corp.
• Aquila Southwest Marketing Corp.
• Aquila Southwest Pipeline Corp.
• Aquilla Energy Corp.
• Arakis Energy Corp.
• Arapaho Energy, Inc.
• Arapaho Land Company, LLC
• Arapaho Marketing Services, L.L.C.
• Arapaho Petroleum, Inc.
• Arapaho Ventures of New York, Inc.
• Arapaho Ventures, Inc.
• Arbuckle Oil Corporation
• Arch Mineral Corp.
• Arch Petroleum Corp.
• ARCO (Atlantic Richfield)
• ARCO Exploration Company
• ARCO International Oil and Gas Co.
• ARCO Oil and Gas Corp.
• ARCO Petroleum Products Company
• Arena Resources Inc.
• Argas Inc.
• Argent Energy, Inc.
• Argo Oil Corporation
• Argo Petroleum Corp.
• Argo Royalty Company
• Argosy Energy Inc.
• Arguello Inc.
• Ariel Company
• Arkansas Bellwether Inc.
• Arkansas Fuel Corporation
• Arkansas Louisiana Gas Company
• Arkansas Louisiana Pipeline Company
• Arkansas Natural Gas Company
• Arkla Energy Resources Company
• ARKLA Exploration Company (E & P)
• ARKLA Rio Offshore Exploration Company
• ARKLA, Inc.
• Arkoma Production Company
• Arlington Ventures Ltd.
• Artex Exploration Company
• Articles of Inc. Capital Company
• Ascent Energy Inc.
• Ascent Energy Louisiana, LLC
• Ascent Operating, LP
• Ascent Resources WV, Inc.
• Ashland Exploration Holdings, Inc.
• Ashland Exploration, Inc.
• Ashland Inc.
• Ashland Oil & Refining Company
• Ashland Oil Canada
• Ashland Oil, Inc.
• Aspen Group Resources Corp.
• Associated Natural Gas, Inc.
• Associated Oil Company
• Associated Producers Company
• Associated Royalty Company
• Astra Resources, Inc.
• ATAPCO
• Athabasca Company
• Athlon Energy
• Atlantic Oil Producing Company
• Atlantic Petroleum Storage Co.
• Atlantic Refining Company
• Atlantic Richfield Company
• Atlantis Resources, Ltd.
• ATP Oil & Gas Corp.
• Atra Exploration Corp.
• Aurora Gasoline Company
• Austin Drilling Company
• Austral Oil Company
• Avance Oil and Gas Company, Inc.
• Aviara Energy Corp. (Houston)
• Aviva America Inc.
• Axem Energy Co.
• Axem Resources Incorporated
• Axio Natural Resources, Inc.
• Axroyalty, Inc.
• Axyn Petroleum Corp.
• Aztec Energy Corp.
• Aztec Oil and Gas Company