Marathon Galveston Bay Refinery Fire in Texas City

A fire at Marathon Petroleum’s Galveston Bay Refinery in Texas City, Texas broke out in the alkylation unit (Unit 2) while crews were draining a vessel. Company reporting to regulators indicated residual hydrocarbons ignited during the draining process, triggering the blaze.

This incident did not occur in a vacuum. The Texas City complex has seen other fires in recent months, including a June 2025 fire that prompted a shelter-in-place and another event that disrupted units.

Incident Details

• Facility: Marathon Petroleum, Galveston Bay Refinery, Texas City, TX

• Date: Reported to regulators as Jan. 12, 2026 (public reporting circulated mid-January)

• Unit: Alkylation Unit 2

• What happened: Fire during vessel draining. Residual hydrocarbons ignited.

• Emergency response: Refinery personnel isolated equipment and used water spray. Emergency crews extinguished the fire.

• Injuries: Initial summaries did not describe serious injuries, but public details remain limited.

• Regulatory record: Incident described in a filing with the Texas Commission on Environmental Quality (TCEQ).

Incident Report

According to reporting that referenced Marathon’s filing with Texas regulators, the fire occurred in the alkylation unit number two while crews were draining a vessel. During that step, residual hydrocarbons ignited, leading to a unit-area fire.

The company’s filing summary indicated personnel isolated the affected equipment and applied water spray, preventing escalation and bringing the incident under control.

Why This Fire Still Matters, Even Without Reported Major Injuries

Texas City is part of the Greater Houston industrial corridor, where incidents tend to repeat the same warning signs: maintenance work, draining operations, leftover hydrocarbons, and ignition. This facility is also one of the largest refining complexes in the country, which raises the stakes when safety controls slip.

Just months earlier, a separate June 2025 fire at the same refinery triggered a shelter-in-place, and Reuters reported disruption tied to that event. When fires keep happening, the public deserves answers about what is changing on the ground, not just what is written in a statement.

What Workers Should Do After a Unit Fire or Near Miss

• Document the shift: Task, unit area, supervisor, time, and who was present.

• Save communications: Texts, work orders, and any instructions tied to draining or isolation steps.

• Report hazards in writing: Near misses matter. A small fire is still a process safety failure.

• Get medical evaluation if exposed: Smoke and chemical exposure can show up later.

Key Takeaways

• The fire occurred in Alkylation Unit 2 while crews were draining a vessel.

• Residual hydrocarbons ignited, according to the company’s reported filing summary.

• Emergency actions reportedly included equipment isolation and water spray.

• This adds to a pattern of recent incidents at the Texas City site, including a June 2025 fire.

• Repeated events demand transparent findings and prevention measures that workers can actually see and trust.

Sources

Marathon refinery overview (location, capacity): https://www.marathonpetroleum.com/Operations/Refining/Galveston-Bay-Refinery

Reuters (via syndication): https://www.sahmcapital.com/news/content/marathon-reports-fire-put-out-at-galveston-bay-texas-refinery-2026-01-14

JOIFF incident summary: https://www.joiff.com/usa-marathon-extinguishes-fire-at-galveston-bay-refinery-alkylation-unit/

ABC13 June 2025 Texas City fire: https://abc13.com/post/officials-issue-shelter-place-fire-breaks-marathon-refinery-texas-city-highway-146-bay-street/16750188/

Click2Houston June 2025 Texas City fire: https://www.click2houston.com/news/local/2025/06/14/shelter-in-place-ordered-after-fire-at-marathon-plant-in-texas-city/

Reuters June 2025 disruption/damage assessment: https://www.reuters.com/business/energy/marathon-assessing-damage-galveston-bay-texas-refinery-sources-say-2025-06-21/