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


The new guidelines released by API will provide standardization for individual oil and gas companies to report and track greenhouse-…

API has published a new edition for the measurement of LNG shipments aboard marine gas carriers, Manual of Petroleum Measurement…

API Energy Excellence launched earlier this year as a landmark API member initiative. The program is designed to build upon and…

BP, which plans to sharply cut its oil output and boost its renewable energy capacity over the next decade, said in a report that…

Experts discuss how emissions factor into profitability in the era of energy transition and the need for standardization in how to…


Advancing Safety Through API’s Process Safety Site Assessment Program (PSSAP®)

API’s Center for Offshore Safety Promotes a Culture of Safety on the Outer-Continental Shelf.

API’s newly launched Pipeline Safety Management System Assessment Program drives safety and performance improvements for the pipeline industry.