en.Wedoany.com Reported - Green Fuels Operating held a groundbreaking ceremony on May 29, 2026, for a $400 million refinery in Stephens County, Oklahoma. The project was facilitated by the Duncan Area Economic Development Foundation (DAEDF) and the Stephens County Commission.
The refinery is located on the site of a former refinery complex dating back to the 1920s, previously operated by Sunray Corp./Sun Oil Co./Tosco Corp. It initially served as an aviation fuel producer, later transitioning to a general refinery and hydrocarbon storage facility until Tosco Corp. shut it down in 1983. In February 2026, DAEDF entered into a management agreement with Stephens County to market, promote, and drive economic development for the property. As the successor to the Duncan Industrial Foundation since 1954 and the region's primary economic development organization, DAEDF actively began recruiting businesses for the site, with the partnership with Green Fuels Operating marking the first major outcome of these efforts.
The groundbreaking ceremony attracted state and federal officials, including U.S. Representative Tom Cole and Lieutenant Governor Matt Pinnell, along with 125 community leaders and supporters. This marks the first major industrial investment at the site in over four decades and is officially described as one of the most significant private energy investments in Oklahoma in a generation. The contractor has not yet been announced.
The new facility will have an initial refining capacity of 30,000 barrels per day, expandable to 50,000 barrels per day, with storage capacity of up to 1 million barrels. The refinery will operate 24 hours a day, seven days a week, 365 days a year, with three shifts. Its product portfolio includes asphalt, naphtha, kerosene, diesel, gasoline, and aviation fuel. The project is expected to create 75 to 80 permanent full-time jobs and generate hundreds of indirect employment opportunities across the region in technical, engineering, operational, and technician fields.
Green Fuels Operating utilizes advanced patented hydrocarbon processing technology, reducing emissions and recovering vapors through flash vacuum separation and closed-loop emission capture systems, operating at lower processing temperatures than traditional refineries.
Derek Williamson, CEO of Green Fuels Operating, stated: "We are bringing refining back to Oklahoma. We're not talking about it, not studying it, not running the numbers again. We are actually doing it. America has spent 50 years losing refineries. We made a decision: we are going to change that story. Refining is coming home, and we are just getting started."
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