Aera, Anadarko Petroleum Corporation, Badger Oil Corporation, CGG Veritas, Chevron, Concedo ASA, ConocoPhillips, Devon, Diversified Well Logging, Inc., EnCana, ESSO, ExxonMobil, GCAGS, Hess, Houston Geological Society, Husky, Marathon, McMoran Oil & Gas LLC., MGM Energy, MOL, New Orleans Geological Society Memorial Foundation, Inc., Nexen, Noble Energy Inc., Oklahoma City Geological Society, Petroquest Energy LLC., Pittsburgh Association of Petroleum Geologists, Plains E&P, Range Resources, Saudi Aramco, Schlumberger, Serica Energy plc, Shell, Shell Canada, StatOil, StatOil UK, Suemaur Exploration & Production, Talisman, Total SA