Great Northern Oil Company

Owners

Flint Hills Resources, LP Koch refining and chemicals

• Owner ('59→?); percent stake: 35%

Union Oil Company of California Petroleum exploration, subsidiary of Chevron Corporation

• Minority owner (?→Dec '69)

Board Members

William J Carthaus Oil executive

• Chairman (past)

Holdings

Pine Bend Refinery Largest oil refinery in Minnesota

• Owner ('55→?)