| 0915988 B.C. Ltd. | Canada |
Private
|
| 3-D Geophysical, Inc. | United States |
Private
|
| 3DX Technologies Inc. | United States |
Private
|
| 3TEC Energy Corporation | United States |
Private
|
| 9416471 Canada Inc. | Canada |
Private
|
| Aabar Investments PJSC | United Arab Emirates |
Private
|
| Abacan Resource Corporation | Canada |
Private
|
| Abbot Group Ltd | United Kingdom |
Private
|
| Ability Drilling ASA | Norway |
Private
|
| Abingdon Exploration Ltd. | Canada |
Private
|
| Acadian Energy Inc. | United States |
Private
|
| Acclaim Energy Inc | Canada |
Private
|
| Acclaim Energy Trust | Canada |
Private
|
| Accrete Energy Inc. | Canada |
Private
|
| Acer Energy Pty Limited | Australia |
Private
|
| Adda Resources Ltd. | Canada |
Private
|
| Addax Petroleum Corporation | Switzerland |
Private
|
| Administracion Nacional de Combustibles Alcohol y Portland | Uruguay |
Private
|
| Adobe Resources Inc | United States |
Private
|
| Adriatic Oil PLC | United Kingdom |
Private
|
| Advanced Cannabis Solutions Inc/Old | United States |
Private
|
| AECO Gas Storage Partnership | Canada |
Private
|
| AED Oil Ltd | Australia |
Private
|
| Aera Energy, Llc | United States |
Private
|
| Afren PLC | United Kingdom |
Private
|
| Aganneftegazgeologia | Russia |
Private
|
| AGIP Petroli S.p.A. | Italy |
Private
|
| AGL Upstream Gas (Mos) Pty Limited | Australia |
Private
|
| Air Liquide Japan Ltd. | Japan |
Private
|
| Aka Energy Group, LLC | United States |
Private
|
| Al Gulf Coast Terminals, LLC | United States |
Private
|
| Alamco, Inc. | United States |
Private
|
| Alberta Clipper Energy Inc. | Canada |
Private
|
| Alberta Energy Company Ltd. | Canada |
Private
|
| Alexander Energy Corporation | United States |
Private
|
| Allegiance Mining Pty Ltd | Australia |
Private
|
| Alliance Energy Inc | Canada |
Private
|
| Alliance Oil Company Ltd | Bermuda |
Private
|
| Alliance Pipeline Limited Partnership | Canada |
Private
|
| Alliance Pipeline LP | Canada |
Private
|
| Alliance Resources plc | United Kingdom |
Private
|
| Alliander N.V. | Netherlands |
Private
|
| Allis-Chalmers Energy, Inc. | United States |
Private
|
| Alon Refining Krotz Springs Inc. | United States |
Private
|
| Alon USA Energy Inc | United States |
Private
|
| Alon USA Inc | United States |
Private
|
| Alter NRG Corp. | Canada |
Private
|
| Altinex AS | Norway |
Private
|
| Aluma Systems Inc. | Canada |
Private
|
| Amalgamated Exploration, Inc. | United States |
Private
|
| AMAREX INC | United States |
Private
|
| AMBAR, Inc. | United States |
Private
|
| Amber Resources Company of Colorado | United States |
Private
|
| Amerac Energy Corporation | United States |
Private
|
| American Agip Company, Inc. | United States |
Private
|
| American Coastal Energy, Inc | United States |
Private
|
| American Eagle Energy Inc. | United States |
Private
|
| American Energy Production Inc | United States |
Private
|
| American Exploration Company | United States |
Private
|
| American Gold Resources Corp | United States |
Private
|
| American International Petroleum Corporation | United States |
Private
|
| American Petrofina Holding Company | United States |
Private
|
| American Petrofina Inc | United States |
Private
|
| American Refining Group, Inc | United States |
Private
|
| American Resource Technologies Inc | United States |
Private
|
| American Standard Energy Corp | United States |
Private
|
| Ameriwest Energy Corp. | United States |
Private
|
| AMINOIL USA INC | United States |
Private
|
| Amoco Argentina Oil Company | United States |
Private
|
| Amplify Energy Corp. | United States |
Private
|
| Ampolex Ltd. | Australia |
Private
|
| Amromco Energy LLC | United States |
Private
|
| Anadarko Canada Corporation | Canada |
Private
|
| Anadarko Finance Company | United States |
Private
|
| Anadarko Holding Company | United States |
Private
|
| Anatolia Energy Corp. | Canada |
Private
|
| Anderson Exploration Ltd. | Canada |
Private
|
| Angle Energy Inc | Canada |
Private
|
| Anglo African Oil & Gas PLC | United Kingdom |
Private
|
| Anglo Siberian Oil Company Limited | United Kingdom |
Private
|
| Antero Resources Finance Corporation | United States |
Private
|
| Anterra Corporation | Canada |
Private
|
| Anzon Energy Pty Limited | Australia |
Private
|
| AO Intergaz Tsentralnaya Aziya | Kazakhstan |
Private
|
| AOCS (ELE) Corp | Canada |
Private
|
| APA Sub Group | Australia |
Private
|
| Apache Beryl I Limited | Cayman Islands |
Private
|
| Apache Finance Canada II Corporation | United States |
Private
|
| Apco Oil and Gas International Inc. | Cayman Islands |
Private
|
| Apetra Nv | Belgium |
Private
|
| Apex Resources Group Inc | United States |
Private
|
| Apic Petroleum Corporation | Canada |
Private
|
| Apollo Gas Pty Ltd | Australia |
Private
|
| Applied LNG | United States |
Private
|
| Aqua-Terra Supply Co Limited | Singapore |
Private
|
| Arabian Oil Company, Ltd. | Japan |
Private
|
| ARAL AG | Germany |
Private
|
| Aran Energy plc | Republic of Ireland |
Private
|
| Arawak Energy Limited | United Kingdom |
Private
|
| Arcade Drilling As | Norway |
Private
|
|
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