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Sources say that the Marathon Galveston Bay Refinery, Texas, will complete repairs to its hydrotreater in October.

Sources say that the Marathon Galveston Bay Refinery, Texas, will complete repairs to its hydrotreater in October.

People familiar with the plant's operations have said that Marathon Petroleum will complete repairs on its damaged hydrotreater by mid-October at its Galveston Bay refinery, which processes 631,000 barrels per day (bpd).

Jamal Kheiry, the spokesperson for Marathon, declined to comment about the operations of the Texas City refinery. It is the largest in the United States by capacity.

A fire that broke out on June 14 shut down the 64,000 bpd RHU (residual hydrotreating unit).

The two sources confirmed that the RHU has restarted the operation of two small hydrotreating systems. A third unit is also expected to be restarted this month.

The 400-train Hydrotreater will be repaired by mid-October. This is the largest hydrotreater on the RHU, and it was also where the fire started.

The RHU had originally been scheduled to close for a complete overhaul in the first three months of 2026. However, the repairs were brought forward.

Hydrotreaters remove sulfur from motor feedstocks using hydrogen in order to comply with U.S. Environmental rules.

RHU is responsible for processing residual crude oil. This thick, tar-like oil that remains after the refining stage. The residual crude oil is used for motor fuel feedstocks, and petroleum coke. (Reporting and editing by Clarence Fernandez, Jacqueline Wong, and Erwin Seba)

(source: Reuters)