Los Angeles Refinery
Overview
Our Los Angeles refinery is in Los Angeles County, near the Los Angeles Harbor. The Los Angeles refinery is the largest refinery on the West Coast with a crude oil capacity of 365,000 barrels per calendar day (bpcd). A major producer of clean fuels, the refinery processes heavy crude from California’s San Joaquin Valley and Los Angeles Basin, as well as crudes from the Alaska North Slope, South America, West Africa and other international sources.
The Los Angeles refinery manufactures cleaner-burning California Air Resources Board (CARB) gasoline and CARB diesel fuel, as well as conventional gasoline, distillates, natural gas liquids and petrochemicals, heavy fuel oil and propane. The refinery ships products via its connections to several product distribution pipelines and terminals. Its Watson cogeneration plant produces 400 megawatts and is the largest cogeneration facility in California.
Health, Safety and Environment
At MPC, the health and safety of our employees and contractors is of paramount concern. We take steps to ensure an accident-free, incident-free workplace. Due to this commitment, we've implemented safety measures and been recognized as a leader in safety.
At the same time, we are committed to minimizing our impact on the environment. As such, we participate in multiple programs, support several organizations and implement various initiatives that aim to protect our environment and the local communities in which we operate.
Below is a list of recent accolades and accomplishments that we've earned at our Los Angeles refinery.
- 2024 Solenis Sustainability Award – Solenis, a global water solutions provider: Recognized a chemical treatment program for the refinery’s cooling water systems projected to lower water usage by 357 million gallons a year.
- 2024 Port of Long Beach Green Flag Award – Port of Long Beach, California: Highlighted support of a voluntary vessel-speed reduction initiative that promotes slower vessel speeds to reduce emissions and enhance local air quality.
Community
At Marathon Petroleum, we know that community is important. It's why we do what we do every day. So, aside from fueling the Los Angeles area, we also make it a priority to be actively involved in efforts that have a positive impact on the community. Listed below are some of the ways we do just that.
- 2025 Wall of Fame induction – Boys & Girls Clubs of Carson: Recognized the refinery’s long-standing commitment to empowering local youth and strengthening the communities it serves.
- Notable grants in 2024:
- Pacific Battleship Center – Freedom of the Seas Campaign: $170,000 to support education, veterans and community through STEAM programs, maritime career pathways, veteran transition support and public safety training aboard the USS Iowa.
- Sharefest – Beautification projects at Dominguez Elementary and the Academy of Medical Arts at Carson High School: $100,000 to boost student pride and strengthen community ties through engagement with youth and the Los Angeles Unified School District.
- Marine Mammal Care Center – Ocean Conservation & STEM programs: $100,000 to provide science-based education about marine mammals, ocean ecosystems and sustainability through labs, outreach and the center’s rehabilitation hospital.
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