• American Association of Petroleum Geologists (AAPG) Tulsa Oklahoma USA
• American Gas Association (AGA) Washington District of Columbia USA
• American Institute of Chemical Engineers (AIChE) New York New York USA
• American Petroleum Institute (API) Washington District of Columbia USA
• American Public Gas Association (APGA) Fairfax Virginia USA
• Association of Energy Engineers (AEE) Atlanta Georgia USA
• Association of Energy Services Professionals International (AESP) Jupiter Florida USA
• Association of Professional Energy Consultants (APEC) Illinois US
• California Independent Petroleum Association (CIPA) Sacramento California USA
• Canadian Association of Petroleum Producers (CAPP) Calgary Alberta Canada
• Canadian Gas Association (CGA) Toronto Ontario Canada
• Colorado Oil & Gas Association (COGA) Denver Colorado USA
• Domestic Petroleum Council (DPC) Washington District of Columbia USA
• Energy Bar Association (EBA) Formerly Federal Energy Bar Association
• European Federation of Energy Traders (EFET) Amsterdam The Netherlands
• Florida Natural Gas Association (FNGA) Tallahassee Florida USA
• Gas Processors Association (GPA) Tulsa Oklahoma USA
• Gas Research Institute (GRI) / Gas Technology Institute (GTI) Des Plaines Illinois USA
• Geological Society of America (GSA) USA
• International Association of Geophysical Contractors (IAGC) – Asia Pacific Office Kuala Lumpur, Malaysia
• International Association of Geophysical Contractors IAGC) – EAME Office Kent England UK
• International Association of Oil & Gas Producers London England,UK
• International Energy Agency (IEA) Paris, France
• International Right of Way Association (IRWA) Torrance California USA
• Interstate Natural Gas Association of America (INGAA) Washington District of Columbia USA
• Kansas Independent Oil & Gas Association (KIOGA) Wichita Kansas USA
• Kentucky Oil & Gas Association (KOGA) Frankfort Kentucky USA
• Louisiana Oil & Gas Association (LOGA) Baton Rouge Louisiana USA
• Lousiana Mid-Continent Oil and Gas Association Baton Rouge Louisiana USA
• Michigan Basin Geological Society East Lansing Michigan USA
• Michigan Oil and Gas Association (MOGA) Lansing Michigan USA
• Mid-Continent Oil & Gas Association of Oklahoma Oklahoma City Oklahoma USA
• Midwest Cogeneration Association (MCA) Western Springs Illinois USA
• Midwest Energy Association (MEA) Minnetonka Minnesota USA
• Montana Petroleum Association (MPA) Helena Montana USA
• Mountain States Legal Foundation (MSLF) Lakewood Colorado USA
• National Association of Energy Service Companies (NAESCO) Washington District of Columbia USA
• National Energy Marketers Association (NEM) Washington District of Columbia USA
• National Energy Services Association (NESA) / Houston Energy Association (HEA) Houston Texas USA
• National Petroleum Council (NPC) Washington District of Columbia USA
• National Propane Gas Association (NPGA) Washington District of Columbia USA
• Natural Gas & Energy Association of Oklahoma (NGEAO) Tulsa Oklahoma USA
• Natural Gas Supply Association (NGSA) Washington District of Columbia USA
• New Mexico Oil & Gas Association (NMOGA) Santa Fe New Mexico USA
• New Orleans Geological Society (NOGS) New Orleans Louisiana USA
• North American Energy Standards Board (NAESB) Houston Texas USA
• North Dakota Petroleum Council Bismarck North Dakota USA
• North Texas Oil & Gas Association / Texas Alliance of Energy Producers Wichita Falls Texas USA
• Northeast Gas Association (NGA) Formerly The New England Gas Association (NEGA)
• Northwest Gas Association (NWGA) Portland Oregon USA
• Ohio Oil & Gas Association (OOGA) Granville Ohio USA
• Oklahoma Independent Petroleum Association (OIPA) Oklahoma City Oklahoma USA
• Oklahoma Mid-Continent Oil and Gas Association Oklahoma City Oklahoma USA
• Organization of Petroleum Exporting Countries (OPEC) Vienna, Austria
• Panhandle Producers & Royalty Owners Association (PPROA) Amarillo Texas USA
• Pennsylvania Oil & Gas Association Harrisburg Pennsylvania USA
• Permian Basin Geophysical Society (PBGS) Midland Texas USA
• Permian Basin Landmen's Association (PBLA) Midland Texas USA
• Permian Basin Petroleum Association (PBPA) Midland Texas USA
• Permian Basin Society of Petroleum Engineers (SPE-PB) Richardson Texas USA
• Petroleum Association of Wyoming (PAW) Casper Wyoming USA
• Petroleum Marketers Association of America (PMAA) Arlington Virginia USA
• Rocky Mountain Gas Association / Utah Heating & Air Conditioning Contractors Association (RMGA/UHACCA) Salt Lake City Utah USA
• Rocky Mountain Mineral Law Foundation (RMMLF) Westminster Colorado USA
• Society of Exploration Geophysicists (SEG) Tulsa Oklahoma USA
• Society of Independent Professional Earth Scientists (SIPES) Dallas Texas USA
• Society of Petroleum Engineers (SPE) Richardson Texas USA
• Society of Petroleum Evaluation Engineers (SPEE) Houston Texas USA
• Society of Professional Well Log Analysts (SPWLA) Houston Texas USA
• Society of Women Engineers (SWE) Chicago Illinois USA
• South Texas Geological Society (STGS) San Antonio Texas USA
• South Texas Geological Society (STGS) San Antonio Texas USA
• Southern Gas Association (SGA) Dallas Texas USA
• Southwest Kansas Royalty Owners Association (SWKROA) Hugoton Kansas USA
• Tennessee Oil & Gas Association (TOGA) Brentwood Tennessee USA
• Texas Alliance of Energy Producers Formerly North Texas Oil and Gas Association (NTOGA)
• Texas Independent Producers & Royalty Owners Association (TIPRO) Austin Texas USA
• Texas Oil & Gas Association (TXOGA) Austin Texas USA
• United States Energy Association (USEA) Washington District of Columbia USA
• Utah Petroleum Association (UPA) Bountiful Utah USA
• West Texas Geological Society (WTGS) Midland Texas USA
• Western States Petroleum Association (WSPA) Sacramento California USA
• World Coal Institute London England UK