G. E. Capital Corp.
Gaims, Weil, West & Epstein LLP.
Galvest Inc.
Gardere, Wynne, Sewell & Riggs
Garvon Inc.
Gasource LLC.
Gateway Energy
Gemini Exploration Company
General Acceptance Corp.
Genesis Resources Corp.
Geomet Inc.
Geopetrol SAM.
Geostar Corp.
Gerson Lehrman Group
GHK Companies
Gifford Operating Co.
Glencore Ltd.
Global Exploration Inc.
Globex Energy Inc.
GNC Limited Partnership
Goldking Energy Corp.
Goldston Oil Corp.
Goodrich Oil Co.
Gordon Capital
Government of the Republic of Trinidad & Tobago
GPM Gas Services Co.
Great Northern Gas Co.
Greenhill Capital Partners
Greka Energy
Greywolf Exploration Inc.
Griner Energy Inc.
Grosso Family Limited Partners
Grynberg Petroleum Co.
Guard Resources Ltd.
Gulf Resources Corp.
Gulf Tech Energy
Gulfsands Petroleum Ltd.
Gulfstream Resources Ltd.
G. T. Land Colorado Inc.
Galaxy Energy Corp.
Galveston Bay Resources Inc.
Gardner Offshore Corp.
Gas Ventures Advisers
Gasper, Rice & Associates Inc.
Gaz de France
Gener Argentina
General Electric Capital Corp.
Geoilbent Ltd. Russia
Geopetro Resources Co.
Georgia Pacific Securities Corp.
Gerrity Oil & Gas Corp.
GFI Oil & Gas Corp.
GHP Exploration
Global Energy Development Ltd.
Global Natural Resources Corp.
GMT Energy Corp.
Golden Spike Energy Inc.
Goldman Sachs & Co.
Gomex Energy Offshore Ltd.
Goodyear Tire and Rubber Co.
Gotland Oil Inc.
GPM Gas Gathering LLC.
Grantham Resources Inc.
Great Western Resources Inc.
Greens Bayou Ltd.
Greystone Resources Inc.
Griffin Asset Management LLC.
Griner Exploration LLC.
Grove Energy Ltd.
Gryphon Exploration Co.
Gugenheimer Group
Gulf South Pipeline Co. LP.
Gulf Western Canada Partnership
Gulfstar Energy Inc.
Gulfwest Oil Co.