Mount Vernon / Indiana / United States
Countrymark Cooperative is an American farm cooperative producing petroleum products for agricultural purposes. For more than 50 years, it has produced fuels specifically designed for heavy-duty equipment, such as farm equipment and on-road diesel engines. Countrymark Cooperative petroleum products are refined in Mt. Vernon, Ind., from crude oil pumped from wells located in Illinois, Indiana and Kentucky. The fuels travel through its more than 230-mile pipeline system to various Indiana employee-operated terminals in Jolietville, Mt. Vernon, Peru and Switz City. Countrymark Cooperatives Super Dieselex-4 has a 20 percent higher cetane index than the standard industry diesel fuel, and its Premium Diesel-R has a higher cetane rating than other fuels in its grade. Its Co-op Ninety Plus performs optimally in older vehicles.
