US Oil Refineries Map / Texas / Houston
Refineries in Houston: Map of Every Houston-Area Refinery
Every oil refinery in the Houston area, along the Houston Ship Channel, in Baytown, Texas City, Galveston and Sweeny, with operator and crude capacity.
Hiring refinery engineers?The Houston area has 11 operable oil refineries with about 2.6 million barrels per day of crude capacity, 14% of all US refining. The largest is the Galveston Bay Refinery in Texas City, run by Marathon Petroleum. This page covers Harris, Galveston, Brazoria and Chambers counties.
| Refinery | Operator | Location | Crude capacity (b/d) | Status | Source |
|---|---|---|---|---|---|
| Galveston Bay Refinery | Marathon Petroleum | Texas City, TX (Galveston County) | 631,000 | Source (2026-06-26) | |
| Baytown Refinery | ExxonMobil | Baytown, TX (Harris County) | 564,500 | Source (2026-06-26) | |
| Deer Park Refinery | Pemex | Deer Park, TX (Harris County) | 312,500 | Source (2026-06-26) | |
| Sweeny Refinery | Phillips 66 | Old Ocean, TX (Brazoria County) | 277,000 | Source (2026-06-26) | |
| Texas City Refinery | Valero Energy | Texas City, TX (Galveston County) | 225,000 | Source (2026-06-26) | |
| Houston Refinery | Valero Energy | Houston, TX (Harris County) | 205,000 | Source (2026-06-26) | |
| Pasadena Refinery | Chevron | Pasadena, TX (Harris County) | 118,750 | Source (2026-06-26) | |
| Galena Park Condensate Splitter | Kinder Morgan | Galena Park, TX (Harris County) | 105,000 | Source (2026-06-26) | |
| Channelview Splitter | Hartree Partners | Channelview, TX (Harris County) | 45,000 | Source (2026-06-26) | |
| Galveston Refinery | Texas International Terminals | Galveston, TX (Galveston County) | 45,000 | Source (2026-06-26) | |
| Houston Refinery (Petromax) | Petromax Refining Co. | Houston, TX (Harris County) | 25,000 | Source (2026-06-26) |
Capacity is atmospheric crude distillation capacity in barrels per calendar day from the EIA Refinery Capacity Report (data as of January 1, 2026), with later closures, restarts and ownership changes applied from the linked sources. "Operable" includes idle refineries, as EIA counts them. Last updated October 2026. See every US refinery on the full map.
Largest refineries in the Houston area
| # | Refinery | Operator | Location | Crude capacity (b/d) |
|---|---|---|---|---|
| 1 | Galveston Bay Refinery | Marathon Petroleum | Texas City, TX | 631,000 |
| 2 | Baytown Refinery | ExxonMobil | Baytown, TX | 564,500 |
| 3 | Deer Park Refinery | Pemex | Deer Park, TX | 312,500 |
| 4 | Sweeny Refinery | Phillips 66 | Old Ocean, TX | 277,000 |
| 5 | Texas City Refinery | Valero Energy | Texas City, TX | 225,000 |
| 6 | Houston Refinery | Valero Energy | Houston, TX | 205,000 |
| 7 | Pasadena Refinery | Chevron | Pasadena, TX | 118,750 |
| 8 | Galena Park Condensate Splitter | Kinder Morgan | Galena Park, TX | 105,000 |
| 9 | Channelview Splitter | Hartree Partners | Channelview, TX | 45,000 |
| 10 | Galveston Refinery | Texas International Terminals | Galveston, TX | 45,000 |
| 11 | Houston Refinery (Petromax) | Petromax Refining Co. | Houston, TX | 25,000 |
Atmospheric crude distillation capacity in barrels per calendar day. Source: EIA Refinery Capacity Report, with later closures and restarts applied.
The Houston refineries at a glance
- Houston Ship Channel: ExxonMobil Baytown, Pemex Deer Park, Chevron Pasadena, Valero Houston, Petromax, and condensate splitters at Galena Park and Channelview.
- Texas City and Galveston: Marathon’s Galveston Bay refinery, Valero Texas City and Texas International Terminals in Galveston, the newest US refinery (2022).
- Brazoria County: Phillips 66 Sweeny, in Old Ocean.
- Closed: LyondellBasell’s Houston refinery shut down in 2025 (EIA).
About 90 miles east, Beaumont and Port Arthur have another four large refineries, including the largest in the US. See oil refineries in Texas.
Are Houston refineries hiring?
Houston refineries hire year-round for operators, process and chemical engineers, mechanical, electrical, controls and reliability engineers, inspectors, and maintenance crafts. Most operator jobs are posted on each company’s own careers site. Contract demand jumps during spring and fall turnaround seasons, when a single refinery can bring in thousands of extra workers.
See the main oil refinery jobs and pay, or, if you are hiring, our guide on how to hire process engineers.
Hiring refinery engineers in Houston? Apollo Technical recruits process, chemical, mechanical, electrical and controls engineers for Houston refineries and petrochemical plants. See our Houston engineering recruiters, our Baytown engineering staffing page or our chemical engineering recruiters.
Houston refinery FAQ
How many refineries are in Houston?
The Houston area (Harris, Galveston, Brazoria and Chambers counties) has 11 operable refineries with crude capacity, based on EIA data.
What is the largest refinery in Houston?
The Galveston Bay Refinery in Texas City, run by Marathon Petroleum, with about 631,000 barrels per day. ExxonMobil’s Baytown refinery is next.
See the US oil refineries map for every state.