Marathon Petroleum Galveston Bay Refinery — Texas City, Texas

TYPE3’s map data identifies Marathon Petroleum’s Galveston Bay Refinery in Galveston County, with coordinates 29.3838, -94.9027, city precision, Operating status, and a 200 MW seed estimate. Its note describes 631,000 barrels/calendar-day capacity and identifies the refinery as one of the largest in the United States. TYPE3’s map data power value is explicitly unconfirmed and is not reconciled by the operator’s generation statement.

Marathon’s current Galveston Bay page places the refinery at 2401 Fifth Avenue South in Texas City and describes the 2018 merger of the former Galveston Bay and Texas City refineries into one complex. It publishes 631,000 bpcd crude capacity and states that an onsite cogeneration facility has 1,055 MW of electrical-production capacity and can produce 4.3 million pounds of steam per hour. The page also states that approximately 45% of power generated in 2018 was used at the refinery, with the remainder sold to the grid. That historical self-use split is not a current demand or availability schedule.

Marathon’s Galveston Bay record separates crude-processing capacity, steam, onsite generation, historical self-use, and grid export. The 1,055 MW figure is generation capability, not consumption, and TYPE3’s 200 MW estimate remains unconfirmed. Cogeneration and refinery capacity do not establish curtailment potential. Current process load, contractual export/import position, backup, and flexible demand require current operator and utility evidence.