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MFA Oil is an energy cooperative started in 1929 by the Missouri Farmers Association. It produces fuel and lubrication products and manages bulk petroleum and propane plants in the Central US.
Frontier Refining and Marketing is a Denver, CO-based company in the Energy and Utilities sector.
Midway Oil Corporation own and operate convenience stores and Dunkin Donuts. Also supply gasoline to independent dealers.
Drilco Inc is a Laguna Beach, CA-based company in the Energy and Utilities sector.