Petroleum institutes
- Association of Petroleum Geologists of India
- Australian Institute of Petroleum
- Brazilian Petroleum Institute (IBP)
- Canadian Society of Petroleum Geologists (CSPG)
- Institute of Petroleum - Oil and Gas Information
- Instituto Mexicano del Petrólio
- Ontario Petroleum Institute Inc.
- Petroleum Equipment Institute
- Petroleum Institute of East Africa
- Nevada Petroleum Society
- Norwegian Petroleum Society (NPS)
- Petroleum Exploration Society of Great Britain
- Society of Petroleum Engineers
- Society of Petroleum Engineers - Gulf Coast section
- Society of Professional Well Log Analysts