The Frontier El Dorado Refinery is the newest member of the Frontier family. Approximately 400 Frontier employees are hard at work to produce our primary products- gasoline, diesel fuels, aviation fuels, and asphalt.

We are keenly committed to operating the El Dorado Refinery in a safe and environmentally responsible manner.

We are proud to be a part of the El Dorado, Butler County and South Central Kansas communities. Check out our Community Involvement link for more information. We also sponsor a Community Advisory Panel to promote an ongoing dialogue with the community.

El Dorado is uniquely positioned for the future with access to crude supply and product outlets to growing markets. We look forward to continued improvement in our safety, environmental and operational performance.

Some quick facts about our facility: