Institution of Gas Engineers and Managers
- Independent body serving professionals in the gas industry. Provides standards, technical data and library.
- http://www.igem.org.uk

Gas Resources Corporation
- Theory about petroleum origins developed by scientists and engineers in the former U.S.S.R. Includes publications and essays.
- http://www.gasresources.net

Smart Reservoir
- Network to promote innovative and sustainable sub-surface exploitation of natural resources. Includes objectives, news, events and technical group activities.
- http://www.smart-reservoir.net

Gas Technology Institute (GTI)
- Research, development and training organization serving the US natural gas industry. Research topics include exploration and production, burner and gasification technology, environment, and advanced energy systems.
- http://www.gastechnology.org/

New York Gas Group
- Information about research, development, and demonstration projects sponsored by New York State natural gas utility trade association.
- http://www.nygas.org

The Juice
- Article providing chemical insights on the gasoline.
- http://www.hpt-sport.com/thejuice.htm

China Oil Web
- About the petroleum industry in China, including projects, news and links to industries.
- http://www.chinaoilweb.com/

Fuels Derived From Crude Oil
- "How Stuff Works" explains of the differences between gasoline, kerosene and diesel fuel.
- http://www.howstuffworks.com/question105.htm

Soltech Group
- Distributors and representatives specializing in oil, gas, and petroleum equipment.
- http://www.sol-tech.net/

South Jersey Oil Heat Association
- Provides information to the public about oil heat and its efficiency and safety. Lists merchants in southern New Jersey.
- http://southjerseyoilheat.com/

Oilpatch Directory Europe
- International vendor data base for the oil & gas industry. Over 3500 companies listed.
- http://www.gasandoil.com/opd/

Offshore Technology
- equipment and services catalogue and buyers' guide for petroleum engineers. Site includes current projects, industry events listing and other oil and gas resources
- http://www.offshore-technology.com/

Oil and Gas Online
- Daily news and product updates for professionals in the petroleum industry- Information on manufacturing, technology, equipment, supplies, and discussion forums, online chat, newsletter and software
- http://www.oilandgasonline.com/

Natural Gas Supply Association
- Organization encouraging expanded use of natural gas and a regulatory climate that fosters competitive markets.
- http://www.ngsa.org/