Complete List of Gulf Coast Refineries
Last reviewed: 2026-05-01
The Gulf Coast refining corridor spans Texas and Louisiana with 21 major refinery complexes and a combined crude processing capacity exceeding 5.8 million barrels per day. Texas hosts 14 facilities concentrated along the Houston Ship Channel, in the Port Arthur/Beaumont area, and around Corpus Christi. Louisiana hosts 7 facilities in the Lake Charles corridor and along the Mississippi River. The Gulf Coast processes approximately 45 percent of all US refining capacity, making it the most important refining region in the nation. ExecGraph maps the full organizational structure at every Gulf Coast refinery.
Key Facts
Texas Refineries
Texas hosts 14 major refinery complexes: ExxonMobil Baytown, Marathon Galveston Bay (Texas City), Shell/Pemex Deer Park, Chevron Pasadena, Motiva Port Arthur, Valero Port Arthur, TotalEnergies Port Arthur, ExxonMobil Beaumont, Valero Texas City, Valero Corpus Christi East and West, Flint Hills Resources Corpus Christi, Phillips 66 Sweeny, and Citgo Corpus Christi. Combined Texas refining capacity exceeds 4 million barrels per day.
Louisiana Refineries
Louisiana hosts 7 major refinery complexes: Citgo Lake Charles, Phillips 66 Lake Charles, ExxonMobil Baton Rouge, Marathon Garyville, Calcasieu Refining, Delek Krotz Springs, and Placid Refining Port Allen. Combined Louisiana refining capacity is approximately 3.2 million barrels per day, making it the second largest refining state.
Capacity Rankings
The largest Gulf Coast refineries by capacity are Motiva Port Arthur (~636,000 bpd), Marathon Galveston Bay (~631,000 bpd), ExxonMobil Baytown (~561,000 bpd), Citgo Lake Charles (~418,000 bpd), and Valero Port Arthur (~395,000 bpd). These five facilities alone account for over 2.6 million barrels per day of processing capacity.
How ExecGraph Covers the Gulf Coast
ExecGraph provides organizational mapping for every major Gulf Coast refinery, including maintenance, operations, procurement, engineering, and reliability leadership. Use ExecGraph to identify the right contact at any facility by role, seniority, or function. The platform covers all 21 refinery complexes and major petrochemical facilities across the region.
Frequently Asked Questions
How many refineries are on the Gulf Coast?
The Gulf Coast has 21 major refinery complexes across Texas and Louisiana, with a combined capacity exceeding 5.8 million barrels per day. This represents approximately 45 percent of total US refining capacity.
What is the largest refinery on the Gulf Coast?
Motiva Port Arthur is the largest Gulf Coast refinery and the largest in the United States, with approximately 636,000 barrels per day of capacity. Marathon Galveston Bay in Texas City is a close second at approximately 631,000 barrels per day.
Which state has more refining capacity, Texas or Louisiana?
Texas has more refining capacity than Louisiana, with 14 major complexes compared to Louisiana's 7. However, both states are critical to the nation's refining infrastructure and operate as an integrated Gulf Coast refining market.
Does ExecGraph cover all Gulf Coast refineries?
Yes. ExecGraph maps the organizational structure at all 21 major Gulf Coast refinery complexes, including maintenance, operations, procurement, engineering, and reliability leadership at every facility.
Related Intelligence
Get the Contacts Behind These Roles
ExecGraph maps 30,000+ verified contacts across Gulf Coast refineries and petrochemical facilities. Names, titles, career history, and org chart position behind a single login.