NAICS 324110 contractors: Petroleum Refineries
177 federal prime contractors list NAICS 324110 as their primary industry. Together they received $8.5B in prime contract obligations in the latest 12 months. The largest by obligations since FY2022 is Okinawa Idemitsu K.K., and most are headquartered in Texas, Florida, and California.
All 177 contractors
Ranked by prime contract obligations since FY2022, across all their NAICS codes. Open a profile for top agencies, recent awards, and contracts ending soon.
Prime contract obligations from USAspending.gov through Oct 5, 2026. A contractor's primary NAICS is the code with the most obligations since FY2022. For the largest contractors in this NAICS by obligations under it, see the NAICS 324110 market page. To search by name, UEI, or CAGE code, use the contractor directory.

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