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


Federal regulators, including the PHMSA, have recently put renewed focus on leak detection for natural gas and liquid pipelines, which…

The NOPEC legislation could create unintended negative consequences for the U.S. oil and natural gas industry, while likely having…

API’s Amanda Eversole and Rystad’s Emily McClain, both of whom are honorees of the Oil and Gas Investor Influential Women in Energy…

Capital investment, oil and gas production, and government revenue could fall if the next U.S. five-year offshore leasing program is…

The updated API guidelines will help prevent injuries and incidents during welding operations in the petroleum and petrochemical…


API’s Pipeline Safety Management System (PSMS) is a benchmark for the natural gas and oil industry to enhance safety and operations. A key element of PSMS is learning and sharing among operators.

The American Petroleum Institute (API) approaches cybersecurity the same way it approaches safety – it is a top priority that requires a systematic, multi-dimensional approach and allows for adaptation in a quickly shifting landscape.

COS was established ten years ago to provide tools and peer learning opportunities, share good practices and support companies on the U.S. Outer Continental Shelf.

The API Monogram program is a globally recognized success story, with a proven track record of acknowledging natural gas and oil equipment manufacturers that meet API’s best-in-class safety and sustainability standards.

API collaborated with American Fuel & Petrochemical Manufacturers to develop the Process Safety Site Assessment Program which helps operators improve safety performance.