Top 10 U.S. refineries operable capacity1
As of January 1, 2026
| Rank | Corporation | Company | State | Site | Barrels per calendar day |
|---|---|---|---|---|---|
| 1 | Saudi Aramco | Motiva Enterprises LLC | Texas | Port Arthur | 656,400 |
| 2 | Marathon Petroleum Corp | Marathon Petroleum Co LP | Texas | Galveston Bay | 631,000 |
| 3 | Marathon Petroleum Corp | Marathon Petroleum Co LP | Louisiana | Garyville | 617,000 |
| 4 | ExxonMobil Corp | ExxonMobil Refining and Supply Co | Texas | Beaumont | 612,000 |
| 5 | ExxonMobil Corp | ExxonMobil Refining and Supply Co | Texas | Baytown | 564,500 |
| 6 | ExxonMobil Corp | ExxonMobil Refining and Supply Co | Louisiana | Baton Rouge | 523,500 |
| 7 | PDV America Inc | Citgo Petroleum Corp | Louisiana | Lake Charles | 471,200 |
| 8 | BP PLC | BP Products North America Inc | Indiana | Whiting | 435,000 |
| 9 | Valero Energy Corp | Premcor Refining Group. Inc | Texas | Port Arthur | 385,000 |
| 10 | Marathon Petroleum Corp | Tesoro Refining and Marketing Co | California | Carson | 365,000 |
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1 Includes only refineries with atmospheric crude oil distillation capacity. |
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