American Petroleum Institute

American Petroleum Institute is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Oil Petroleum

North American Industry Classification System (NAICS) Categories:

• Petroleum And Petroleum Products Merchant Wholesalers (Except Bulk Stations And Terminals) > Engine Fuels, Oils & Lubricants > Oil Petroleum

Standard Industry Classification (SIC) Categories:

• Petroleum And Petroleum Products Wholesalers, Except Bulk Stations And Terminals > Engine Fuels, Oils & Lubricants > Oil Petroleum Wholesale