American Petroleum Institute

1220 L Street, NW
Washington, DC 20005


The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry, with more than 500 corporate members, from the largest major oil company to the smallest of independents. They are producers, refiners, suppliers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry.