Randy (David) Blood is a geologist and petrophysicist based in the greater Pittsburgh area working on various aspects of Paleozoic strata in the Appalachian Basin. He has worked unconventional organic-rich mudstone and tight gas sand reservoirs for 15 years. Much of his research focused on building gas-in-place models, understanding hydrocarbon storage mechanisms, and building holistic geological models to explain the accumulation and distribution of reservoir facies. Most recently he has begun to work creating resource assessments of critical minerals in various deposits in North America.

Randy has had extensive involvement with AAPG throughout the years: He is a EMD and DPA member and Certified Petroleum Geologist, he has delivered over 40 talks and posters at national, regional, and affiliated meetings. He has published full-length journal articles in a number of special publications, lead multiple core workshops a number of field trips for national and regional AAPG meetings. In 2019 Randy became the EMD Eastern Section Councilor.