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\;API\: - American Petroleum Institute


API is the only national trade association that represents all aspects of America's oil and natural gas industry. Our 400 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. They are producers, refiners, suppliers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry.

Although our focus is primarily domestic, in recent years our work has expanded to include a growing international dimension, and today API is recognized around the world for its broad range of programs. [1]


All standard information comes form the API product catalog. The latest version can be searched from the API site. [2]