December 28, 2022   Ohio Geological Society   Ohio Geological Society    
June 23, 2021   Adrian Valdez     Stephen F. Austin State University   College of Sciences and Mathematics, Department of Geology
March 23, 2021   Naser Ameen   U.S. Energy Information Administration, Office of Energy Production & Markets Analysis    
January 21, 2021   Douglas Aden   Ohio Geological Survey    
October 15, 2019        
May 17, 2019   Steven P. Zody   Zody Geoscience, LLC    
March 6, 2019   Gregory R. Wrightstone   Author - “Inconvenient Facts”    
November 29, 2018   Dr. Mike Brudzinski     Miami University   Department of Geology
October 19, 2017   Devin R. Fitzgerald, M. Wes Casto, Robert B. Thomas Sr.   EMF Geoscience, Inc. & Casto Petroleum Engineering    
February 16, 2017   Dr. Tim Carr     West Virginia University   Geology and Geography
November 10, 2016   Gregory Wrightstone   Wrightstone Energy Consulting    
October 20, 2016   Dr, Srikanta Mishra   Battelle Memorial Institute    
April 10, 2016   CHUCK KNOX   KNOX GEOLOGICAL LLC    
April 10, 2016   CHUCK KNOX   KNOX GEOLOGICAL LLC    
March 12, 2016   JOSEPH SMITH   PDC ENERGY INC.    
March 1, 2016   JOSEPH P. FAGAN JR.   CENTENNIAL GEOSCIENCE, INC.    
October 12, 2015   DARIO BATURAN   NANOMETRICS    
March 12, 2015   RUSTY RIESE   AAPG DISTINGUISHED ETHICS LECTURER    
February 12, 2014   TOM TOMASTIK   ODNR-DOGRM    
February 12, 2014   CHIP FEAZEL   AAPG DISTINGUISHED LECTURER    
March 12, 2013   ROBBIE GRIES   AAPG PRESIDENT 2001-2002