Duncan refinery
Green Fuels Operating (GFO), Duncan, Stephens County, Oklahoma
Duncan refinery in Duncan, Oklahoma is Green Fuels Operating (GFO)’s plant for refined fuels (gasoline, diesel, jet fuel, asphalt), 30,000 bbl/day. Status: under construction as of May 29, 2026 (groundbreaking). Green Fuels Operating (GFO) announced $400 million and 80 jobs. Primary source: okcommerce.gov, checked November 12, 2026.
- Status
- Under construction
- Announced investment
- $400 million
- Announced jobs
- 80
- Industry
- Chemicals
- Sheet
- OK-07
- Revised
- November 12, 2026
Status timeline
- Groundbreakingokcommerce.gov
Filled dots are confirmed by a company, state, SEC or federal source. Dashed dots come from news reports only. Investment and job figures are as announced, not achieved.
Plant facts
| Company | Green Fuels Operating (GFO) |
|---|---|
| Plant | Duncan refinery |
| Location | Duncan, Stephens County, Oklahoma |
| Industry | Chemicals |
| Product | Refined fuels (gasoline, diesel, jet fuel, asphalt), 30,000 bbl/day |
| Announced investment | $400 million |
| Announced jobs | 80 |
| Last checked | November 12, 2026 |
Sources
- $400 Million Refinery Breaks Ground in Duncan, Oklahoma (state release, okcommerce.gov, checked November 12, 2026)
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