Motiva Port Arthur Refinery Org Chart
Last reviewed: 2026-05-01
The Motiva Port Arthur refinery is the largest refinery in the United States, with approximately 636,000 barrels per day of crude processing capacity. Owned by Saudi Aramco through its Motiva Enterprises subsidiary, the facility sits on the Sabine Neches Waterway in Port Arthur, Texas. The site operates a massive crude expansion project completed in 2012 that nearly doubled capacity. Maintenance, operations, and procurement are organized through a traditional refinery structure with a Refinery Manager overseeing all site functions.
Key Facts
Site Overview
The Motiva Port Arthur refinery is the largest refinery in the United States and one of the largest in the world. Located in Port Arthur, Texas, the facility has approximately 636,000 barrels per day of capacity following its 2012 crude expansion project. Motiva Enterprises, wholly owned by Saudi Aramco, operates the facility.
Maintenance Organization
Port Arthur's maintenance organization reflects the enormous scale of the facility. A Maintenance Director oversees multiple area maintenance superintendents, a large reliability engineering team, and a permanent turnaround planning organization. The site conducts major turnarounds on a staggered schedule given the number of process units, meaning turnaround activity is nearly continuous.
Procurement and Vendor Management
Motiva maintains its own procurement organization separate from Saudi Aramco's global supply chain. The Port Arthur site has local buyers and category managers who handle both MRO and capital procurement. Vendor qualification follows the Motiva AVL process, which includes ISNetworld prequalification and site specific safety requirements.
Capital Investment Profile
Motiva continues to invest in the Port Arthur facility, including reliability upgrades, environmental compliance projects, and debottlenecking initiatives. The site's strategic importance to Saudi Aramco means it receives consistent capital allocation. Engineering and project management teams are permanently staffed to manage the ongoing investment program.
Frequently Asked Questions
Who runs maintenance at Motiva Port Arthur?
Maintenance is led by a Maintenance Director who oversees area superintendents across the sprawling facility. The reliability engineering group and turnaround planning organization also report through the maintenance function.
Is Motiva Port Arthur really the largest US refinery?
Yes. Following its 2012 crude expansion project, Motiva Port Arthur has approximately 636,000 barrels per day of capacity, making it the largest single refinery in the United States.
How do I sell to Motiva Port Arthur?
Vendors must qualify through the Motiva AVL process, which includes ISNetworld prequalification and financial review. Engage the site procurement team for MRO opportunities and the capital projects group for project related materials and services.
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