American Petroleum Institute Inc. (API)


American Petroleum Institute (API) represents all segments of America’s oil and natural gas industry. Its more than 600 members produce, process, and distribute most of the nation’s energy. The industry supports 10.9 million U.S. jobs and is backed by a growing grassroots movement of more than 47 million Americans. API was formed in 1919 as a standards-setting organization. In its first 100 years, API has developed more than 700 standards to enhance operational and environmental safety, efficiency and sustainability.

Editor's note: Updated Jan. 22, 2020.

Headquarters Address

200 Massachusetts Avenue NW
Washington, DC 20001
United States

Main Phone Number


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