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John Dolson

I have 40 years of oil and gas experience, in both conventional and unconventional plays. I enjoy mentoring younger staff and helping companies close technical and organizational gaps. I have a long track record of hydrocarbon discoveries in both conventional and unconventional plays in multiple basins and petroleum systems.

After working for Amoco/BP for 28 years, in 2008 I formed DSP Geosciences and Associates ( I have worked with over 30 companies and am currently in my 11th year consulting with Cairn Energy India, and 6th year providing petroleum systems analysis for Ion Geophysical for their offshore SPAN data sets. I am also a Senior Geological Advisor to Delonex Energy (London), with extensive experience in Africa.

In 2016, I authored a 406-page book Understanding Oil and Ga Shows and Seals in the Search for Hydrocarbons ( The book deals with using well data understand petroleum systems, find by-passed pay and recognize migration pathways and potential traps.

I am a Trustee and 39-year member of the American Association of Petroleum Geologists, a past Vice President (2006/2007) and candidate for President (2010). I am an adjunct professor at the Univ. of Miami. Past Advisory positions include The University of Colorado at Denver, Royal Holloway Univ. (London), Colorado State University, Moscow State University (Russia) and Tyumen University (Russia).

I have been honored with many corporate and public service awards, including Amoco’s 1998 Worldwide Technology Excellence in Exploration, and Distinguished Public Service (RMAG, AAPG).
My specialties in stratigraphy, structural geology, applied petrophysics, core analysis, depositional systems, GIS mapping and risk assessment. Petroleum systems generation, migration and entrapment provide my main approach to play and prospect evaluation, underpinned by calibrating migration models to hydrocarbon shows.

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Integrating drill cuttings analysis with subsurface data
by Dr Alex Mock from Numerical Rocks

"Interesting and entertaining speculation about the future plus excellent update on land seismic acquisition."

Richard Walker (Consultant Geophysicist)


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