Organisations

	American Association of Petroleum Geologists (AAPG) (Geobyte)
	American Association of Professional Landmen (AAPL)
	American Gas Association
	American Geological Institute
	American Petroleum Institute
	The Association of Professional Engineers, Geologists and Geophysicists of Alberta (APEGGA)
	Australian Geological Survey Organisation (AGSO)
	Australian Institute of Geoscientists (AIG)
	Australian Mineral Foundation (AMF)
	Australian Petroleum Production & Exploration Association Limited (APPEA)
	Australian Society of Exploration Geophysicists (ASEG)
	Australian Petroleum Cooperative Research Centre
	Bay Area Geophysical Society
	British Geological Survey (BGS)
	Canadian Association of Petroleum Producers
	Canadian Society of Exploration Geophysics
	Computer-Oriented Geological Society (COGS)
	CSIRO Petroleum -- a division of Australia's largest scientific research agency
	Denver Geophysical Society
	European Association of Geoscientists and Engineers (EAGE) -- 5400 members worldwide -- Publishes Geophysical Prospecting
	Geobyte
	Geological Survey of Victoria
	Geological Society of America
	Geological Society of London
	Geophysical Society of Houston
	Geoscience Information Centre
	Houston Geological Society
	Independent Petroleum Association of America (IPAA)
	Indonesian Association of Geologists
	Indonesian Petroleum Association (IPA)
	International Association for Mathematical Geology
	Irish Association of Economic Geology -- over 300 members
	NAPE^® -- prospect expo website -- view and post prospects
	National Petroleum Council (NPC)
	The Organization of the Petroleum Exporting Countries (OPEC)
	Petroleum Exploration Society of Australia (PESA)
	Petroleum Exploration Society of Great Britain (PESGB)
	Petroleum Technology Transfer Council (PTTC)
	Petrotechnical Open Software Corporation (POSC)
	Potomac Geophysical Society
	Professional Organisations and Societies -- Links from the Virtual Geosciences Professor
	San Joaquin Geological Society
	SEAPEX -- SouthEast Asia Petroleum Exploration Society
	SEG -- Society of Exploration Geophysicists
	Society of Petroleum Engineers (SPE)
	Society of Professional Well Log Analysists (SPWLA)
	South African Geophysical Association (SAGA) -- over 350 members
	Stanford Exploration Project
	U.S. and Canadian Geoscience Departments
	U.S. Geological Survey
	University of Calgary List of Earth Sciences Organisations
	University of Toledo -- Institute of Geophysical Studies
	West Texas Geological Society

Lists of Organisations:

sci.geo.petroleum Internet Resources