# Bruce Fleming

> Bruce A. Fleming is CEO of Montana Renewables and Executive Vice President, Montana Renewables and Corporate Development at Calumet. A chemical engineer educated at the University of Delaware and Princeton, he previously held roles at Amoco, Orient Refining and Tesoro. His current work centers on renewable fuels production in Great Falls, Montana, using converted refinery infrastructure and agricultural feedstocks.

- **Role:** CEO at Montana Renewables; Executive Vice President, Montana Renewables and Corporate Development at Calumet
- **Organizations:** Montana Renewables, Calumet, Inc., Board of M&A Standards, Tesoro Corporation, Orient Refining Ltd., Amoco
- **Education:** B.S. in Chemical Engineering, University of Delaware, Ph.D. in Chemical Engineering; thesis on silica polymerization, Princeton University
- **Known for:** Led Montana Renewables during commercialization of its converted Great Falls renewable fuels operation, which began commercial operations in late 2022., Led the company during the start of SAF deliveries under a multiyear Shell agreement in 2023., Founder and managing director of Orient Refining Ltd., as identified in Montana Renewables’ March 2023 investor presentation.

## Career timeline

- **1981-1996** — Operations, planning and business-development roles at Amoco; ultimately vice president of China business development.
- **1997-2004** — Founder and managing director of Hong Kong-based Orient Refining Ltd.
- **2004-2016** — Vice president of mergers and acquisitions at Tesoro Corporation and officer of Tesoro Companies.
- **2016** — Joined Calumet as executive vice president of strategy and growth in March.
- **2021** — Became executive vice president with responsibility for Montana Renewables and corporate development in February; Montana Renewables was separated legally and commercially in November.
- **2023** — As Montana Renewables CEO, participated in initial SAF shipment celebrations and the first camelina oil receipt event.
- **2026** — Continued as Montana Renewables CEO as the company announced a World Energy supply agreement and revised its MaxSAF expansion plan.

## Achievements

- Led Montana Renewables during commercialization of its converted Great Falls renewable fuels operation, which began commercial operations in late 2022.
- Led the company during the start of SAF deliveries under a multiyear Shell agreement in 2023.
- Founder and managing director of Orient Refining Ltd., as identified in Montana Renewables’ March 2023 investor presentation.
- Published research on silicic acid and amorphous silica surfaces in the Journal of Colloid and Interface Science in 1986.

## Latest updates

- **2026-09** — Calumet announced a revised MaxSAF plan targeting approximately 200 million gallons of annual SAF output by year-end 2028, with $137 million in remaining project capital. Reported SAF run rate was 60 million gallons per year.
- **2026-04** — Fleming appeared on Sustainability in the Air to discuss refinery retrofits, feedstocks, policy stability and SAF logistics.
- **2026-02** — Montana Renewables and World Energy announced an agreement to deliver more than 70 million gallons of SAF over three years.

## Links

- Website: https://montanarenewables.com/
- LinkedIn: https://www.linkedin.com/in/bruce-fleming-8a91b33a

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Profile page: https://yespress.io/bruce-fleming
Published by YesPress — https://yespress.io
Last updated: 2026-10-22