| Americal Geophysical Union | drd.com | |
| American Gas Association | agal.org | |
| American Geological Institute | agi.umd.edu | |
| American Association of Petroleum Geologists (AAPG Tulsa) | www.neosoft.com/aapg | |
| American Association of Petroleum Geologists (AAPG Tulsa) | aapg.org | |
| Elsevier Publishing, Earth Sciences Department (incl. Sed-Abstracts) | earthscience@elsevier.nl | |
| GeoNet | geonet.org | |
| Geophysical & Environmental Research Corp. | ger.com | |
| GISnet | gisnet.com | |
| International Association of Mathematical Geologists | imag.org | |
| Natural Gas Information Center | natrualgas.com | |
| Organization of the Petroleum Exporting Countries (OPEC) | opec.org | |
| Petroleum Science International | psi-wvti.com | |
| Petrotechnical Open Software Corp. (POSC) | posc.org | |
| Public Petroleum Data Model Association | ppdm.org (ppdm@chel.cuc.ab.ca) | |
| Rocky Mountain Association of Geologists | rmag.org | |
| Society of Petroleum Engineers | spe.org | |
| Gulf Coast Section | spegcs.org | |
| SPE E-mail | <initial>.<last-name>@spelink.spe.org | |
| Southeast Asian Petroleum Exporation Society (SEAPEX) | kelleyst@technet.sg or kelleyst@signet.com.sg
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