| Greentree Gas & Oil Ltd. | Canada |
Private
|
| Greka Energy Corporation | United States |
Private
|
| Grey Wolf Exploration Inc | Canada |
Private
|
| Growmax Resources Corp | Canada |
Private
|
| Grupa Lotos S.A. | Poland |
Private
|
| GS Caltex Corp | South Korea |
Private
|
| GTL Terminals Limited | United Kingdom |
Private
|
| GUARDIAN GLOBAL SECURITY PLC | United Kingdom |
Private
|
| Gulf Crossing Pipeline Company, LLC | United States |
Private
|
| Gulf Oil (Great Britain) Ltd | United Kingdom |
Private
|
| Gulfsands Petroleum Plc | United Kingdom |
Private
|
| Gushan Environmental Energy Limited | China |
Private
|
| Halliburton Energy Services, Inc. | United States |
Private
|
| Halo Resources Ltd. | Canada |
Private
|
| HarCor Energy Inc. | United States |
Private
|
| HARDY PLC | Isle of Man |
Private
|
| Harvest Health & Recreation Inc | United States |
Private
|
| Harvest Natural Resources, Inc. | United States |
Private
|
| Harvest Operations Corp | Canada |
Private
|
| Hearthstone Utilities Inc. | United States |
Private
|
| Heating Oil Partners L.P. | United States |
Private
|
| Helios Capital Corporation | United States |
Private
|
| HELIUM ONE (UK) LIMITED | United Kingdom |
Private
|
| Helmerich & Payne International Drilling Company | United States |
Private
|
| Heritage Oil Plc | Jersey |
Private
|
| Hess Bakken Investments I Corporation | United States |
Private
|
| Hi-Crush Inc | United States |
Private
|
| High Plains Gas, Inc. | United States |
Private
|
| Highpine Oil & Gas Limited | Canada |
Private
|
| HighPoint Operating Corp | United States |
Private
|
| HighPoint Resources Corp | United States |
Private
|
| Hiland Holdings GP LP | United States |
Private
|
| Hiland Partners Holdings, LLC | United States |
Private
|
| Hilcorp Energy I, L.P | United States |
Private
|
| HK eBus Corporation | United States |
Private
|
| Holly Energy Finance Corp | United States |
Private
|
| Holly Energy Partners - Operating, L.P. | United States |
Private
|
| Hong Kong Aviation Capital Limited | Hong Kong |
Private
|
| Hovedstadsregionens og Midt-Nords Naturgasselskab I/S | Denmark |
Private
|
| Hovensa LLC | Virgin Islands |
Private
|
| HPCL - Mittal Pipelines Limited | India |
Private
|
| HPCL-Mittal Energy Limited | India |
Private
|
| HRC Energy Resources (Lafourche), Inc. | United States |
Private
|
| Hunt Consolidated Inc. | United States |
Private
|
| Hunt Oil Company | United States |
Private
|
| Hunt Refining Company | United States |
Private
|
| Hunt Resources Inc | United States |
Private
|
| Hunter Technology Corp | Canada |
Private
|
| Hurricane Kumkol Munai JSC | Kazakhstan |
Private
|
| Hydril Company LP | United States |
Private
|
| Hyperion Exploration Corp | Canada |
Private
|
| Hyundai Oilbank Co Ltd | South Korea |
Private
|
| IdaTech PLC | United Kingdom |
Private
|
| IFM (US) Colonial Pipeline 2, LLC | United States |
Private
|
| Illinois Power Financing I | United States |
Private
|
| Imperial Energy Corporation plc | United Kingdom |
Private
|
| Imperial Petroleum Recovery Corporation | United States |
Private
|
| Indago Petroleum Ltd | Guernsey |
Private
|
| India Green Energy Holdings (IGEH) | India |
Private
|
| Indus Energy NL | Australia |
Private
|
| Industrial Perforadora De Campeche, S.A. De C.V. | Mexico |
Private
|
| Ineos Usa LLC | United States |
Private
|
| Innuity Inc | United States |
Private
|
| Insignia Energy Ltd. | Canada |
Private
|
| Inter Pipeline (Corridor) Inc. | Canada |
Private
|
| Inter Pipeline Ltd | Canada |
Private
|
| Interior Gas Utility (AK) | United States |
Private
|
| International Petroleum Corporation | Canada |
Private
|
| Internorth, Inc. | United States |
Private
|
| Invicta Energy Corp | Canada |
Private
|
| Ipiranga Produtos de Petroleo S.A. | Brazil |
Private
|
| Iracema Transmissora de Energia S.A. | Brazil |
Private
|
| IROC Energy Services Corp. | Canada |
Private
|
| IronGate Energy Services | United States |
Private
|
| Island Oil and Gas plc | Republic of Ireland |
Private
|
| Israel Natural Gas Lines Company Ltd. | Israel |
Private
|
| Isramco, Inc. | United States |
Private
|
| Istrabenz DD | Slovenia |
Private
|
| Iteration Energy Ltd. | Canada |
Private
|
| Ithaca Petroleum Ltd | United Kingdom |
Private
|
| Ivanhoe Energy Inc. | Canada |
Private
|
| Ivory Energy Inc | Canada |
Private
|
| Jadestone Energy Inc | Singapore |
Private
|
| Japan Energy Corporation | Japan |
Private
|
| JayHawk Energy, Inc. | United States |
Private
|
| Jinneng holding equipment manufacturing group co., ltd. | China |
Private
|
| John D. Oil & Gas Company | United States |
Private
|
| Jones Energy II Inc | United States |
Private
|
| Jubilant Energy NV | Netherlands |
Private
|
| Jumbo Development Corporation | Canada |
Private
|
| JX Metals Corporation | Japan |
Private
|
| JX Nippon Oil & Energy USA Inc. | United States |
Private
|
| Kashima Oil Co., Ltd. | Japan |
Private
|
| Katalyst Data Holdings Inc | Canada |
Private
|
| Kazakhoil National Oil Company | Kazakhstan |
Private
|
| KazMunayGas International NV | Netherlands |
Private
|
| KCA DEUTAG Drilling Ltd | United Kingdom |
Private
|
| KCS Energy, Inc. | United States |
Private
|
| Kelley Oil & Gas Partners Ltd | United States |
Private
|
| Kelley Oil Corp | United States |
Private
|
|
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