Fuels refinery
Marathon Galveston Bay Refinery
Marathon Petroleum Company LP · Marathon Petroleum Corporation · Galveston Bay, TX
PADD3 IRS refinery no. R-74-TX-0110
ngl
propane
petrochemical feedstocks
- bpd crude capacity · EIA 2026
- 631,000
- pipelines it injects into
- 3
- delivery points reachable
- 72
- terminals on those points
- 305
- terminals reachable by barge
- 47
- events on record
- 5
Capability
Crude distillation 631,000 bpd operable, 631,000 operating (EIA-820, as of 2026-01-01). Downstream units below, barrels per calendar day.
Conversion — makes gasoline and diesel from heavier oil
| Catalytic cracking (FCC) | 208,600 |
| Hydrocracking — distillate | 75,500 |
| Hydrocracking — residual | 82,700 |
| Delayed coking | 30,900 |
Upgrading
| Catalytic reforming — low pressure | 139,700 |
| Vacuum distillation | 259,500 sd |
Treating — meets sulfur specs
| Hydrotreating — diesel | 60,500 sd |
| Hydrotreating — kerosene & jet | 76,000 sd |
| Hydrotreating — gasoline | 57,000 sd |
| Hydrotreating — naphtha / reformer feed | 131,500 sd |
| Hydrotreating — heavy gas oil | 108,500 sd |
Production capacity
Alkylates · 67,000
Aromatics · 98,000
Petcoke market · 11,910
Sulfur short tons day · 1,332
Crude slate
Wide variety of crude oils processed into gasoline, distillates, NGLs, petrochemicals, heavy fuel oil and propane; specific sour/sweet mix not confirmed in sources reviewed.
Crude in & products out
| Direction | Mode | Route | Point / origin | Products | Source |
|---|---|---|---|---|---|
| crude in | pipeline | Seaway Pipeline Seaway's Texas City terminal and distribution system serves refineries in the Greater Houston/Texas City area. |
Cushing, OK via Jones Creek/Texas City distribution system | crude | source |
| crude in | pipeline | Wink to Webster Pipeline Named by project sponsors and Galveston County as delivering Permian crude/condensate to multiple Houston-market destinations 'including the Galveston Bay refinery.' |
Permian Basin (Wink/Midland, TX) | crude | source |
| crude in | marine | Galveston Bay / Texas City Channel Refinery sits directly on the Texas City Channel/Galveston Bay. |
Waterborne imports / domestic marine | crude | source |
| products out | pipeline | Marathon Pipe Line (MPLX) Texas City products system The refinery's own way out by pipe. Marathon Pipe Line FERC No. 302.19.0 (effective 2026-07-01) publishes Texas City, TX as an origin, with rates to Pasadena delivery facilities: Kinder Morgan, Hardin Street Transportation, Edgewater-Colex and Enterprise TE Products (45.52 cents a barrel), and ITC and the Magellan Valero Partnership terminal (93.87); the tariff's Pasadena point also lists Colonial Pipeline and Explorer Pipeline. MPLX's 10-K describes the Texas City products system as about 39 miles of 16-inch pipeline carrying refined products from refineries owned by MPC and third parties in Texas City to MPC's Pasadena tank farm and third-party terminals, and about three miles of 30- and 36-inch pipeline from the tank farm to the Enterprise, Colonial and Centennial systems, 215,000 b/d. Everything the refinery sends to Colonial, Explorer and TE Products goes this way first. |
Texas City (Galveston County), TX | gasoline distillate | source |
| products out | pipeline | Colonial Pipeline Not a direct connection at the plant: product moves on MPLX's Texas City line to the Pasadena tank farm and from there by MPLX's 30- and 36-inch lines into Colonial (MPLX 10-K; Marathon Pipe Line FERC No. 302.19.0 lists Colonial Pipeline at its Pasadena point). |
Pasadena, by the MPLX Texas City products system | gasoline distillate | source |
| products out | pipeline | Explorer Pipeline Not a direct connection at the plant: Marathon Pipe Line FERC No. 302.19.0 lists Explorer Pipeline among the facilities at its Pasadena delivery point, reached from Texas City. |
Pasadena, by the MPLX Texas City products system | gasoline distillate | source |
| products out | marine | Texas City Channel (Galveston Bay) The refinery's docks are on the Texas City Channel and turning basin, dredged to 45 ft, not on the Houston Ship Channel. A ship agent lists five Marathon berths there, and the Port of Texas City's public berth is also used by Marathon, Valero and BWC (see Docks). |
Refinery marine dock | refined products crude | source |
| products out | truck rack | Refinery truck rack (not identified) The refinery's bonded truck rack has not been identified. The IRS entry 'Texas City Terminal' at 760 14th Street South (T-76-TX-2870), which sits on Marathon's fence line and was earlier assumed to be it, is listed under Enterprise Products Partners in a facility directory built from EPA records (https://decarbonfuse.com/companies/enterprise-products-partners-lp), not under Marathon. |
Texas City | gasoline distillate | source |
| products out | rail | BNSF / Union Pacific Port of Texas City's ownership/interchange includes both BNSF and Union Pacific and a local short line (Galveston Railroad), but a dedicated crude/product rail-loading facility specifically at Marathon's refinery was not confirmed. |
Texas City area rail network | crude refined products | source |
Docks
The docks at this facility and, where a ship agent or port publishes it, the largest vessel each berth takes. Channel conditions change; these figures are a guide, not clearance to sail.
Marathon Galveston Bay refinery docks (Texas City Channel)
| Berth | Max draft | Max length | Max beam | Air draft |
|---|---|---|---|---|
| #32 | 40 ft | 850 ft | 135 ft | – |
| #37 | 39.5 ft | 745 ft | 106 ft | – |
| #38 | 39.5 ft | 745 ft | 106 ft | – |
| #40 | 45 ft | 1000 ft | 200 ft | – |
| #41 | 45 ft | 1000 ft | 250 ft | – |
- Fresh water available (free of charge) Texas City Channel and Turning Basin are dredged to -45'00" MLW. Density of water at Texas City is brackish, approximately 1010 (sg).
- Max draft Texas City Ship Channel is 45'00" FW.
- Crew are permitted shore leave access.
- Terminal must be notified via radio of any incoming launches for any/all deliveries. Said notification to take place prior to launch arrival alongside vessel. Failure to comply will result in USCG notification. USCG PFS Plan Info: USCG approval date: unknown
Source: Moran Shipping Agencies port directory, read 2026-10-10.
Pipeline reach
| Pipeline | Injects at | Delivery points | Terminals | Lowest ¢/bbl | Median ¢/bbl |
|---|---|---|---|---|---|
| Colonial Pipeline |
Houston (Pasadena, Cedar Bayou) per research
|
70 | 303 | 77.52 | 167.26 |
| Marathon Pipe Line (MPLX) |
Texas City (Galveston County), TX per research
|
2 | 2 | 45.52 | 93.87 |
By water
| Waterway | Terminals | Nearest mi | Farthest mi |
|---|---|---|---|
| Gulf Intracoastal Waterway / Houston Ship Channel | 1 | 1 | 1 |
| Gulf Intracoastal Waterway / Galveston Bay | 1 | 10 | 10 |
| Houston Ship Channel | 10 | 25 | 38 |
| Gulf Intracoastal Waterway | 13 | 73 | 285 |
| Victoria Barge Canal / Gulf Intracoastal Waterway | 1 | 130 | 130 |
| Bayou Teche / Gulf Intracoastal Waterway | 2 | 191 | 192 |
| Lower Mississippi River / Gulf Intracoastal Waterway | 1 | 243 | 243 |
| Gulf Intracoastal Waterway / Port of Harlingen | 3 | 272 | 273 |
| Mobile Bay / Gulf ICW | 12 | 412 | 423 |
| Gulf ICW | 3 | 460 | 468 |
All 47 barge-reachable terminals
| Terminal | Location | Supplied by barge on | Miles |
|---|---|---|---|
| OILTANKING TEXAS CITY LP | Texas City, TX | Gulf Intracoastal Waterway / Houston Ship Channel | 1 |
| Martin Operating Partnership, L.P. | Galveston, TX | Gulf Intracoastal Waterway / Galveston Bay | 10 |
| Battleground Oil Specialty Terminal Company LLC (Bostco) | La Porte, TX | Houston Ship Channel (La Porte barge canal) | 25 |
| MVP Terminaling | Pasadena, TX | Houston Ship Channel | 27 |
| Marathon Petroleum Company LLC | Pasadena, TX | Houston Ship Channel | 28 |
| Enterprise Pasadena Products Terminal | Pasadena, TX | Houston Ship Channel | 28 |
| Phillips 66 Pipeline - Pasadena | Pasadena, TX | Houston Ship Channel | 28 |
| Crown Central Petroleum Corp | Pasadena, TX | Houston Ship Channel | 28 |
| KM Pasadena Truck Facility | Pasadena, TX | Houston Ship Channel | 28 |
| Shell - Colex Terminal | Pasadena, TX | Houston Ship Channel | 28 |
| GLOBAL COMPANIES, LLC | Pasadena, TX | Houston Ship Channel | 29 |
| Pasadena Performance Products | Pasadena, TX | Houston Ship Channel | 38 |
| Port Neches Terminal | Port Neches, TX | Gulf Intracoastal Waterway (Matagorda Bay) | 73 |
| CITGO - Victoria | Victoria, TX | Victoria Barge Canal / Gulf Intracoastal Waterway | 130 |
| Martin Operating Partnership, L.P. | Gueydan, LA | Gulf Intracoastal Waterway (Gueydan / Vermilion Parish) | 145 |
| Martin Operating Partnership | Aransas Pass, TX | Gulf Intracoastal Waterway (Corpus Christi area) | 157 |
| Bay Ltd. Redfish Bay Terminal | Aransas Pass, TX | Gulf Intracoastal Waterway | 170 |
| Breaux Bridge Terminal | Breau Bridge, LA | Bayou Teche / Gulf Intracoastal Waterway | 191 |
| Anse La Butte | Breau Bridge, LA | Bayou Teche / Gulf Intracoastal Waterway | 192 |
| Five Star Fuels | Baldwin, LA | Gulf Intracoastal Waterway (Baldwin / Bayou Teche corridor) | 206 |
| Martin Operating Partnership, L.P. | Amelia, LA | Gulf Intracoastal Waterway (Amelia / Bayou Boeuf) | 231 |
| IMTT - Geismar | Geismar, LA | Lower Mississippi River / Gulf Intracoastal Waterway | 243 |
| Port Isabel Logistical Offshore Terminal | Port Isabel, TX | Gulf Intracoastal Waterway (Lower Laguna Madre) | 268 |
| Titan Fuel Terminals | Harlingen, TX | Gulf Intracoastal Waterway / Port of Harlingen | 272 |
| NuStar Logistics, L.P. - Harlingen, TX | Harlingen, TX | Gulf Intracoastal Waterway / Port of Harlingen | 273 |
| Port Harlingen Terminal | Harlingen, TX | Gulf Intracoastal Waterway / Port of Harlingen (Arroyo Colorado) | 273 |
| Titan Fuel Terminal | Harlingen, TX | Gulf Intracoastal Waterway (to Harlingen) | 273 |
| ABC Gulf Coast Terminal | Brownsville, TX | Gulf Intracoastal Waterway (to Brownsville) | 279 |
| CITGO - Brownsville | Brownsville, TX | Gulf Intracoastal Waterway | 279 |
| TransMontaigne - SouthWest | Brownsville, TX | Gulf Intracoastal Waterway | 280 |
| Brownsville Terminal | Brownsville, TX | Gulf Intracoastal Waterway (to Brownsville) | 280 |
| Bluewing One | Brownsville, TX | Gulf Intracoastal Waterway | 285 |
| Martin Energy Services LLC | Mobile, AL | Mobile Bay / Gulf ICW | 412 |
| Center Point Chickasaw LLC - Chicksaw North Terminal | Mobile, AL | Mobile Bay / Gulf ICW | 422 |
| Barcliff LLC | Mobile, AL | Mobile Bay / Gulf ICW | 422 |
| Plains Marketing Terminal / Eott Energy | Mobile, AL | Mobile Bay / Gulf ICW | 422 |
| Petroleum Fuel & Terminal Company | Chickasaw, AL | Mobile Bay / Gulf ICW | 422 |
| Radcliff/Economy Marine Services - Mobile North | Mobile, AL | Mobile Bay / Gulf ICW | 423 |
| Zenith Energy US - Mobile Terminal | Mobile, AL | Mobile Bay / Gulf ICW | 423 |
| Alabama Bulk Terminal LLC | Mobile, AL | Mobile Bay / Gulf ICW | 423 |
| Barcliff d/b/a/ Radcliff Economy Marine Services | Mobile, AL | Mobile Bay / Gulf ICW | 423 |
| Dunhill Terminals | Mobile, AL | Mobile Bay / Gulf ICW | 423 |
| Petroleum Fuel & Terminal Company Chickasaw | Mobile, AL | Mobile Bay / Gulf ICW | 423 |
| Midstream Fuel Services, Incorporated - Martin Company | Mobile, AL | Mobile Bay / Gulf ICW | 423 |
| Mocar Oil | Pensacola, FL | Gulf ICW | 460 |
| TransMontaigne - Pensacola | Pensacola, FL | Gulf ICW | 467 |
| Transmontaigne Partners L.p. - Pensacola Terminal | Pensacola, FL | Gulf ICW | 468 |
Substitutes
Other refineries injecting into the same pipelines — the supply that could backfill an outage here.
Colonial Pipeline
- Motiva Enterprises LLC · Port Arthur, TX 656,400 bpd
- Marathon Petroleum CO LP · Garyville, LA 617,000 bpd
- Exxonmobil Refining & Supply CO · Beaumont, TX 612,000 bpd
- Exxonmobil Refining & Supply CO · Baytown, TX 564,500 bpd
- Exxonmobil Refining & Supply CO · Baton Rouge, LA 523,500 bpd
- Citgo Petroleum Corp · Lake Charles, LA 471,200 bpd
- Premcor Refining Group INC · Port Arthur, TX 385,000 bpd
- Deer Park Refining LP · Deer Park, TX 312,500 bpd
- Phillips 66 Company · Linden, NJ 275,000 bpd
- Phillips 66 Company · Westlake, LA 263,700 bpd
- Totalenergies Petrochem & Refg USA · Port Arthur, TX 238,000 bpd
- Shell Oil Products Us · Norco, LA 231,153 bpd
- Valero Refining CO Texas LP · Texas City, TX 225,000 bpd
- Valero Refining New Orleans LLC · Norco, LA 215,000 bpd
- Valero Refining CO Texas LP · Houston, TX 205,000 bpd
- Chalmette Refining LLC · Chalmette, LA 190,000 bpd
- Paulsboro Refining CO LLC · Paulsboro, NJ 160,000 bpd
- Calcasieu Refining CO · Lake Charles, LA 135,500 bpd
- Valero Refining - Meraux LLC · Meraux, LA 125,000 bpd
- Pasadena Refining Systems INC · Pasadena, TX 118,750 bpd
- Alon Refining Krotz Springs INC · Krotz Springs, LA 80,000 bpd
- Placid Refining CO · Port Allen, LA 75,000 bpd
- Hunt Refining CO · Tuscaloosa, AL 50,000 bpd
Explorer Pipeline
- Motiva Enterprises LLC · Port Arthur, TX 656,400 bpd
- Exxonmobil Refining & Supply CO · Beaumont, TX 612,000 bpd
- Exxonmobil Refining & Supply CO · Baytown, TX 564,500 bpd
- Citgo Petroleum Corp · Lake Charles, LA 471,200 bpd
- Premcor Refining Group INC · Port Arthur, TX 385,000 bpd
- Wrb Refining LP · Wood River, IL 345,000 bpd
- Totalenergies Petrochem & Refg USA · Port Arthur, TX 238,000 bpd
- Valero Refining CO Texas LP · Texas City, TX 225,000 bpd
- Valero Refining CO Texas LP · Houston, TX 205,000 bpd
- Pasadena Refining Systems INC · Pasadena, TX 118,750 bpd
Marathon Pipe Line (MPLX)
- Marathon Petroleum CO LP · Garyville, LA 617,000 bpd
- Marathon Petroleum CO LP · Catlettsburg, KY 307,000 bpd
- Marathon Petroleum CO LP · Robinson, IL 253,000 bpd
- Valero Refining CO Texas LP · Texas City, TX 225,000 bpd
- Lima Refining Company · Lima, OH 183,000 bpd
- Pasadena Refining Systems INC · Pasadena, TX 118,750 bpd
- Marathon Petroleum CO LP · Canton, OH 100,000 bpd
Events
-
2026-08-01
outage
A condenser on cat cracker No. 3 leaked to atmosphere; operators changed the unit's conditions and isolated the exchanger to stop it (Reuters). source
-
2026-04-16
outage
The cat cracker was reported back to normal operation after an upset. source
-
2025-07
outage
The fire-damaged hydrotreater was expected to remain shut until September 2025, with all other units running at/near full capacity. source
-
2025-06-14
fire
Fire at the 400-train hydrotreater (Residual Hydrotreating Unit, 64,000 bpd) prompted a shelter-in-place order; FCC-3 gasoline unit throughput was cut back for several days. source
-
2023
expansion
South Texas Asset Repositioning (STAR) project completed, raising Galveston Bay Refinery capacity to ~631,000 bpd. source
Rates are pipeline line-haul transcribed from published FERC tariffs; every figure cites its tariff and item. Cost to serve (netback) adds origin spot price and destination fees. "Confirmed" links match a tariff delivery point to the facility; "same city" means the point is in the facility's city — plausible, not proof; "per research" means the facility's research profile names the pipeline as an outlet.