| Abengoa Bioenergy of Nebraska LLC | United States |
Private
|
| Abwicklungsgesellschaft Biogas I AG | Germany |
Private
|
| AES Andres B.V. | Dominican Republic |
Private
|
| All Star Gas Corp | United States |
Private
|
| Bede plc | United Kingdom |
Private
|
| CNG Producing Company | United States |
Private
|
| Companhia Piratininga de Forca e Luz | Brazil |
Private
|
| Compania General de Combustibles S.A. | Argentina |
Private
|
| EDF Renouvelables SA | France |
Private
|
| Empresa Energetica De Mato Grosso Do Sul S.A. - ENERSUL | Brazil |
Private
|
| Eneco Wind Belgium S.A. | Belgium |
Private
|
| EXFO Inc | Canada |
Private
|
| Financiera de Desarrollo Nacional S.A. | Colombia |
Private
|
| Gary-Williams Energy Corporation | United States |
Private
|
| GEA AG | Germany |
Private
|
| GeoResources, Inc. | United States |
Private
|
| Global Energy, Inc. | Israel |
Private
|
| Guangxi Energy Co Ltd | China |
Private
|
| Hawkeye Renewables, LLC | United States |
Private
|
| Helius Energy Limited | United Kingdom |
Private
|
| Indian Oxygen Ltd. | India |
Private
|
| Indo Integrated Energy BV | Netherlands |
Private
|
| Interpipe Limited | Cyprus |
Private
|
| Intrepid Technology & Resources, Inc. | United States |
Private
|
| Magellan Midstream Holdings, L.P. | United States |
Private
|
| Mansfield Oil Company, Inc. | United States |
Private
|
| Mantra Resources Pty Limited | Australia |
Private
|
| Midamerican Energy Company | United States |
Private
|
| National Electric Company E A D | Bulgaria |
Private
|
| NIDEC COMPONENTS CORP | Japan |
Private
|
| Northeast Biofuels, LP | United States |
Private
|
| Novera Energy Limited | United Kingdom |
Private
|
| NSTAR LLC | United States |
Private
|
| OSI Geospatial Inc. | Canada |
Private
|
| Parker & Parsley Petroleum Company | United States |
Private
|
| Petrosearch Energy Corp | United States |
Private
|
| Powerbags AG | Germany |
Private
|
| PRATERM SA | Poland |
Private
|
| Puget Sound Energy, Inc. | United States |
Private
|
| R & B Falcon Corp | United States |
Private
|
| Remote Services Inc. | United States |
Private
|
| Renewable Energy Generation Ltd | United Kingdom |
Private
|
| Renewable Energy Holdings plc | United Kingdom |
Private
|
| Run of River Power Inc | Canada |
Private
|
| Sage Energy Company | United States |
Private
|
| Salt Lake Potash Ltd | Australia |
Private
|
| Samson Resources Company | United States |
Private
|
| SBF AG | Germany |
Private
|
| Second Wave Petroleum Inc. | Canada |
Private
|
| Seki Technotron Corporation | Japan |
Private
|
| Sinclair Oil Corporation | United States |
Private
|
| Solar AG | Germany |
Private
|
| Solarbrook Water & Power Corp. | United States |
Private
|
| Sonat Exploration Company | United States |
Private
|
| Star Energy Group PLC | United Kingdom |
Private
|
| Stedin Holding N.V | Netherlands |
Private
|
| Techem AG & Co | Germany |
Private
|
| US Bioenergy Corporation | United States |
Private
|
| Verenium Corporation | United States |
Private
|
| Vista International Technologies, Inc. | United States |
Private
|
| Vycon, Inc. | United States |
Private
|
| Wabash Valley Power Association Inc | United States |
Private
|
| Wentworth Resources PLC | United Kingdom |
Private
|
| Woodside Energy Ltd | Australia |
Private
|
| Zhejiang Southeast Electric Power Company Ltd. | China |
Private
|
|
