» American Association of Petroleum Geologists    International organization with 31,000 members in 115 countries. Member information, trade show schedules, news, and publications.    http://www.aapg.org/

» Bienvenidos al Instituto Petroquímico Argentino    Non-profit institution whose objectives include studies and analysis, technological research and training, and promotional services for the petrochemical and chemical industries.    http://www.ipqa.org.ar/

» Canadian Society of Petroleum Geologists    Member information, convention information, news, and publications. Publishes books, a magazine and a technical journal. Has 3500 members.    http://www.cspg.org/

» PGK - Petroleum Geological Circle    Dutch professional society of petroleum geologists and engineers. In English.    http://www.pgknet.nl/

» Petroleum Exploration Association of New Zealand    Promoting the interests of petroleum producers and explorers in New Zealand. includes membership, news, and papers and reports.    http://www.pepanz.org/

» SCAWeb: The Society of Core Analysts    Promotes the technology of core analysis. Has 600 members. It is a chapter at large of the Society of Professional Well Log Analysts. Based in Dallas, Texas.    http://www.scaweb.org/

» Society of Petroleum Engineers    Serves professional engineers, scientists, and managers in the exploration and production segments of the worldwide oil and gas industry.    http://www.spe.org/

» Society of Professional Well Log Analysts    Includes member services, well log mnemonics, software directory. Has 2000 members.    http://www.spwla.org/