Saudi Arabia’s Texas Refinery Just Made a Power Move

While some U.S. refiners are scaling back, Saudi Arabia’s Motiva Enterprises just made a power move. The Saudi Aramco-owned refinery in Port Arthur, Texas, has quietly expanded its capacity, now processing a record 654,000 barrels per day—officially making it the largest refinery in the United States above Exxon’s Beaumont and Marathon’s Galveston Bay.

Motiva pulled this off without a flashy billion-dollar project—just good old-fashioned optimization, removing bottlenecks in the system to squeeze out more production.…