Ergon, Inc. is a privately owned company based in Jackson, Mississippi. The company refines and distributes petroleum products. Their manufactured products group manufactures and markets various products ranging from computer boards and systems to road maintenance products and equipment. Ergon owns the Vicksburg Refinery located in Vicksburg, Mississippi and also owns approximately 500 wells, mostly in Louisiana and in East Texas.
Lion Oil has been an affiliate of Ergon since 1985 and owns a refinery located near Smackover crude oil field and in El Dorado, Arkansas. As of October 2011, Ergon had sold its remaining interest in Lion Oil to Delek US Holdings, Inc. for approximately $228.7 million.