Oil Refining & FuelsMartinez, CaliforniaAnnouncement date · Mar 2, 2021

Martinez Renewables

See all projects by Marathon Petroleum / Neste →

Marathon Petroleum converted its former Martinez petroleum refinery into Martinez Renewables, a $1.2 billion renewable-fuels manufacturing complex operated through a 50/50 joint venture with Neste. The facility produces renewable diesel and other renewable fuels from biobased feedstocks including animal fats, soybean oil, and corn oil. Operations began in 2023, and the facility was designed for approximately 730 million gallons of annual renewable-fuels capacity.

Martinez Renewables transformed an existing Bay Area refinery into one of the country’s largest renewable-diesel manufacturing facilities. The project preserved valuable industrial infrastructure while creating large-scale domestic production capacity for lower-carbon transportation fuels serving West Coast markets. AFT does not carry a separate new permanent operating-job figure for this conversion because official announcements do not disclose a verified net-new operating-jobs total, distinct from the converted refinery's existing workforce.

Investment
$1.20B
Permanent jobs announced
No separate jobs count announced.
Status
Operational
Operations began
March 2023
Why this project qualifies

With $1.2 billion in facility-specific investment, this project clears AFT's $100 million investment threshold (AFT includes any project meeting $100 million in facility-specific investment OR 100 permanent operating jobs). This project also meets AFT's primary-source verification and physical U.S. manufacturing-footprint requirements.

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Why it matters

The oil refining & fuels context.

Oil refining and fuels production tracks major U.S. facilities that turn hydrocarbons, renewable feedstocks, or synthetic processes into transport fuels, base oils, and related products. The category includes qualifying refinery investments and fuel-production plants, while excluding extraction, pipelines, terminals, storage, retail infrastructure, and power generation. These projects are capital-intensive industrial systems whose output reaches aviation, freight, manufacturing, and consumer fuel markets.

Project record

At a glance

Company
Marathon Petroleum / Neste
Industry
Oil Refining & Fuels
Location
Martinez, California
Investment
$1.20B
Permanent jobs announced
No separate jobs count announced.
Status
Operational
Announced
Mar 2, 2021
Operations began
March 2023
Added to tracker
Aug 14, 2026
Sources

Official references

  • Project approval
    https://www.marathonpetroleum.com/Newsroom/Company-News/Marathon-Petroleum-to-Proceed-with-Conversion-of-Martinez-Refinery-to-Renewable-Fuels-Facility/
  • Joint venture and verified project cost
    https://ir.marathonpetroleum.com/investor/news-releases/news-details/2022/Marathon-Petroleum-Corp-Announces-Joint-Venture-for-Martinez-Renewable-Fuels-Project-with-Neste/default.aspx
  • Joint venture closing and permitting
    https://ir.marathonpetroleum.com/investor/news-releases/news-details/2022/Marathon-Petroleum-Corp-Announces-Closing-of-Martinez-Renewables-JV-with-Neste/default.aspx
  • Operational status
    https://www.marathonpetroleum.com/Operations/Renewable-Fuels/
Related

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