Dan Jarvie is an analytical and interpretive organic geochemist. He has studied or been involved in evaluation of conventional petroleum systems around the world, but is most noted for his ongoing work in unconventional shale‐gas exploration particularly the Barnett Shale of the Fort Worth Basin, Texas. His specialties include source rock characterization especially for shale‐gas and shale‐oil resource assessments, but also detailed source rock characterization for conventional petroleum systems analysis including bulk and compositional kinetic determinations, high resolution light hydrocarbon and fingerprinting analysis, and pyrolysis studies.