Top 10 U.S. refineries operable capacity*
As of January 1, 2024
Rank Corporation Company State Site Barrels per calendar day
1 Marathon Petroleum Corp Marathon Petroleum Co LP Texas Galveston Bay 631,000
2 Saudi Aramco Motiva Enterprises LLC Texas Port Arthur 626,000
3 ExxonMobil Corp ExxonMobil Refining and Supply Co Texas Beaumont 609,024
4 Marathon Petroleum Corp Marathon Petroleum Co LP Louisiana Garyville 597,000
5 ExxonMobil Corp ExxonMobil Refining and Supply Co Texas Baytown 564,440
6 ExxonMobil Corp ExxonMobil Refining and Supply Co Louisiana Baton Rouge 522,500
7 PDV America Inc Citgo Petroleum Corp Louisiana Lake Charles 455,000
8 BP PLC BP Products North America Inc Indiana Whiting 435,000
9 Marathon Petroleum Corp Tesoro Refining and Marketing Co California Carson 365,000
10 Valero Energy Corp Premcor Refining Group. Inc Texas Port Arthur 360,000