Researcher, teacher, speaker, panelist

Professional societies seek me out as a meeting convener, technical session chair, short course teacher, expert panelist and speaker. I have enjoyed contributing my expertise to the World Petroleum Congress, the International Geological Congress, the American Association of Petroleum Geologists, the European Association of Geoscientists and Engineers, the Geological Society of London, and many other organizations. 


The international press and scientific journalists regard me as a trusted source of objective information on issues of global petroleum resources and their development. I routinely grant print, radio, and television interviews to organizations such as the BBC, CBC, CNN, National Geographic, the New York Times, PBS, Der Spiegel, Science Magazine, and the Wall Street Journal.


I provide information and guidance to governmental and non-profit organizations such as the California Division of Oil, Gas, and Geothermal Resources, Central Intelligence Agency, EuroGeoSurveys, United States Coast Guard, U.S. Department of State, Energy Information Administration, International Energy Agency, Geological Survey of Denmark and Greenland, National Intelligence Council, The Nature Conservancy, Norwegian Petroleum Directorate, Massachusetts Institute of Technology, University of California, and the World Bank.

Current activities


Global energy supply

Arctic resources 

Petroleum in California

Evaluation of unconventional
petroleum resources

Resource assessment methods

Resource/cost analysis

Consultant to the California Council on Science and Technology/Lawrence Berkeley

Laboratory Evaluation of Well Stimulation Technologies in California: Consultant and author

University of Adelaide School of Petroleum: Adjunct Professor

DonGautier LLC: Principal

US Geological Survey: Scientist Emeritus

University of Southern California Viterbi School of Engineering: Instructor in Petroleum Geology

American Association of Petroleum Geologists: Committee on Resource Evaluation