Canadian Society of Petroleum Geologists (CSPG)
Environmental Systems Research Institute, Inc. (ESRI)
Gas Technology Institute (GTI)
Gas & Oil Technology Exchange and Communication Highway of New Mexico (GO-TECH)
Independent Petroleum Association of America (IPAA)
Interstate Oil & Gas Compact Commission (IOGCC)
Louisiana Independent Oil and Gas Association (LIOGA)
ISO 9000 Translated into plain English.
Petrotechnical Open Software Corporation(POSC)
Public Petroleum Data Model Association (PPDM)
Society of Independent Professional Earth Scientists
…is a national organization founded in Houston in 1963 for independents, small business owners or consulting earth scientists. Its members are involved in oil, gas and other natural resources and include geologists, engineers, geophysicists, geochemists, paleontologists, petrophysicists and other earth scientists… http://www.sipes-houston.org
Society of Petroleum Engineers (SPE)
Surface Survey Information Web
Texas Independent Producers and Royalty Owners Association (TIPRO)