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Baytown Refinery

About us

Founded in 1919, the Baytown Refinery began operation in 1920 and the Chemical Plant started up in 1940.

Today, the ExxonMobil Baytown Complex is one of the largest integrated and most technologically advanced refining and petrochemical complexes in the world.

The complex is located on approximately 3,400 acres along the Houston Ship Channel, about 25 miles east of Houston. It is comprised of four manufacturing sites, including one in nearby Mont Belvieu, and a global technology center. Employing a workforce of approximately 7,000, the Baytown area sites are highly integrated which makes the plants and products more efficient. We are developing technologies to make cleaner fuels and are working together to operate more safely and reliably.

A few facts on our facilities:

  • The Refinery has the capability to process up to 584,000 barrels of crude oil per day.
  • The Baytown Chemical Plant produces products such as the butyl in your tires and the polypropylene in your car bumper.
  • The Baytown Olefins Plant, which began operations in 1979, is one of the largest ethylene plants in the world.
  • The Mont Belvieu Plastics Plant was built in 1982 and produces high and low density polyethylene, which goes into products such as shrink and stretch film to bundle water bottles and heavy duty sacks that hold food.
  • The Baytown Technology & Engineering Complex has been on-site since the 1920s. It has produced innovative technology, such as the lithium-ion battery separator film and numerous plastics light-weighting technologies that help make our vehicles more fuel efficient.

We are undergoing construction of a multibillion-dollar ethane cracker at the Baytown Olefins Plant and associated performance product facilities in nearby Mont Belvieu. The cracker will have a capacity of up to 1.5 million tons per year and will provide ethylene feedstock for downstream chemical processing, including processing at two new 650,000 tons-per-year high performance polyethylene lines at the Mont Belvieu Plastics Plant. Start-up is planned for 2017.

Learn more about Baytown’s history in our 90th Anniversary Book.