The California Energy Commission organized the WESTCARB partnership in 2003 in support of a U.S. Department of Energy (DOE) initiative to develop regionally specific information on CO2 storage resources and to address associated applied research needs. The Energy Commission led the partnership and co-funded the work.

The partnership was comprised of state and provincial resource management and environmental protection agencies; national laboratories and research institutions; colleges and universities; conservation non-profits; oil and gas companies; power companies; pipeline companies; trade associations; vendors and service firms; and consultants.

• Advanced Resources International
• Aera Energy
• Air Liquide
• Alaska Department of Natural Resources
• Alston & Bird LLP
• American Petroleum Institute
• American Water Works Association
• Argonne National Laboratory
• Arizona Electric Power Cooperative
• Arizona Geological Survey
• Arizona Public Service Company
• Aspen Environmental Group
• Bascom Pacific, LLC
• Bevilacqua-Knight, Inc.
• Blue Source
• BP (British Petroleum)–America
• British Columbia Ministry of Energy, Mines, and Petroleum Resources
• Calera Corporation
• California Air Resources Board
• California Department of Forestry and Fire Protection–Red Bluff, CA
• California Department of Forestry and Fire Protection–Sacramento, CA
• California Department of Water Resources
• California Division of Oil, Gas and Geothermal Resources
• California Energy Commission
• California Environmental Protection Agency
• California Forest Products Commission
• California Geological Survey
• California Institute for Energy and the Environment
• California Polytechnic State University–San Luis Obispo
• California State University–Bakersfield
• Cement Industry Environmental Consortium
• Chevron
• Clean Energy Systems
• Climate Action Reserve
• Climate Trust
• Collins Companies
• ConocoPhillips
• Desert Research Institute
• DNV Research-Det Norske Veritas
• Electric Power Research Institute
• Errol L. Montgomery & Associates
• GeoMechanics Technologies
• Golder Associates
• GreenFire Energy
• Greenwood Resources
• HTC Purenergy
• ION Geophysical
• Jeld-Wen Timber and Ranch
• Kinder Morgan

• Lake County Resources Initiative
• Lawrence Berkeley National Laboratory
• Lawrence Livermore National Laboratory
• Linde Group
• Massachusetts Institute of Technology
• National Council for Air and Stream Improvement
• Nevada Bureau of Mines and Geology
• Nexant
• Occidental Petroleum
• Oregon Department of Forestry
• Oregon Forest Resources Institute
• Oregon State University
• Pacific Forest Trust
• Pacific Gas and Electric Company
• PacifiCorp
• Peabody Energy
• Portland General Electric
• Portland State University
• Princeton Natural Gas, LLC
  
• Ramgen Power Systems
  
• Renewable Fuel Technologies, LLC
  
• Rooney Engineering, Inc.
  
• Salt River Project
  
• San Francisco Department of the Environment
• Sandia Technologies
  
• Schlumberger
  
• SFA Pacific
  
• Shell International
  
• Sierra Pacific Resources
  
• Southern California Edison
  
• Stanford University–Global Climate Energy Project
  
• StoneAxe Energy
  
• Taisei Corporation
• TransAlta Centralia Generation
  
• Tucson Electric Power
  
• University of Alaska–Fairbanks
  
• University of California–Berkeley
  
• University of California–Davis
  
• University of Hawaii–Hawaii Natural Energy Institute
  
• U.S.D.A. Forest Service (Pac. Wildland)–Vallejo, CA
  
• U.S.D.A. Forest Service (Shasta)–Redding, CA
  
• U.S. Environmental Protection Agency, Region 9
• U.S. Environmental Protection Agency, Region 10
  
• U.S. National Park Service
  
• Utah Automated Geographic Reference Center
  
• Washington State Department of Natural Resources
  
• Western Governors' Association/Western Interstate Energy Board
  
• Western Shasta Resource Conservation District
  
• Western States Petroleum Association
  
• Wheelabrator Shasta Energy Company
• William J. Clinton Foundation
  
• Winrock International
  
• W.M. Beaty and Associates