Oil & Natural Gas

• Occidental Petroleum
• California Resources Corporation
• ABA Energy Corporation
• Slawson Exploration
• Enerfin Resources Company
• Foothill Energy
• LLC and Royale Energy
• Sojitz Energy Venture, Inc.
• Salamanca Energy, LLC
• Petersen Production
• Greka
• Capitol Oil Corporation
• Nahabedian Exploration Group, LLC
• Strata-X, Inc
• Northwest Petroleum, Inc.
• Armstrong Petroleum Corporation
• Patriot Resources, LLC
• Calpine
• Petrogulf Corporation
• Vern Jones Oil and Gas
• Longbow
• California Energy Exchange
• Comet Ridge Resources
• Venture Oil & Gas, Inc.
• Pioneer Exploration, LLC
• Atlantic Oil Company
• Gasco Energy
• Romara Energy
• Gibson Enterprises, LLC
• Archer Exploration
• Black Coral LLC
• Orchard Petroleum, Inc.
• Edward Mike Davis
• DE&O
• Paul Graham Drilling
• Source Energy Corporation
• Temblor Petroleum Company, LLC

Gas Storage

• Cardinal Gas Storage
• Cadeville Gas Storage
• Perryville Gas Storage
• Monroe Gas Storage
• Arcadia Gas Storage
• Ryckman Creek Resources, LLC
• Gill Ranch Storage, LLC
• Central Valley Gas Storage
• Lodi Gas Storage
• Monroe Gas Storage
• Princeton Natural Gas, LLC
• Nicor Enerchange, LLC
• Puget Sound Energy
• Rockpoint
• Mist Gas Storage
• Leaf River Energy Center

Compressed Air Energy

• WorleyParsons
• PG&E
• Hydrodynamics

Geo Thermal

• Olene KBG, LLC

CO2 sEQUESTRATION

• C 12 Energy

epa class 1 Water Injection projects

• Northern California Power Agency
• Newhall LandRoseville Energy Park
• WorleyParsons