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Non-Federal Peer Reviews of USGS Oil and Gas Assessment Methodologies

The U.S. Geological Survey assesses the potential for undiscovered oil and gas resources in priority geologic provinces in the United States and around the world. Two methodologies are used by the USGS; one for assessing conventional oil and gas resources and one for assessing unconventional (continuous) oil and gas resources (such as shale gas and coalbed gas). These methodologies have been subjected to rigorous peer reviews by non federal panels, and the two panel reports are provided on this page. In addition, USGS publications detailing and explaining the conventional and continuous assessment methodologies are provided as background for the peer-panel reports.

Assessment Methodology–Conventional Resources

Peer Review Report

• American Association of Petroleum Geologists Committee on Resource Evaluation (CORE) Subcomittee to review the World Assessment Methodology used by the USGS

USGS Reports

• U.S. Geological Survey Assessment Concepts for Conventional Petroleum Accumulations
  By James W. Schmoker and T.R. Klett
• U.S. Geological Survey Input-Data Form and Operational Procedure for the Assessment of Conventional Petroleum Accumulations
  By T.R. Klett, James W. Schmoker, and Ronald R. Charpentier
• A Monte Carlo Simulation Method for the Assessment of Undiscovered, Conventional Oil and Gas
  By Ronald R. Charpentier and T.R. Klett

Assessment Methodology–Continuous Resources

Peer Review Report

• American Association of Petroleum Geologists Committee on Resource Evaluation (CORE) Subcomittee to review the United States Onshore Continuous (Unconventional) Gas Assessment Methodology Used by the USGS

USGS Reports

• U.S. Geological Survey Assessment Concepts for Continuous Petroleum Accumulations
  By James W. Schmoker
• U.S. Geological Survey Input-Data Form and Operational Procedure for the Assessment Of Continuous Petroleum Accumulations, 2002
  By T.R. Klett and James W. Schmoker
• Analytic Resource Assessment Method for Continuous Petroleum Accumulations—The ACCESS Assessment Method
  By Robert A. Crovelli

Modeling

• Petroleum System Modeling Capabilities for Use in Oil and Gas Resource Assessments
  Debra K. Higley, Michael Lewan, Laura N.R. Roberts, and Mitchell E. Henry