Specialty hydrocarbon producer Calumet Specialty Products Partners operates in two business segments -- specialty products and fuel products. The specialty products unit, the company's largest, processes crude oil into lubricating oils, solvents, waxes, and other petroleum products. It sells these items to industrial customers who use them in the manufacture of basic automotive, consumer, and industrial goods. The fuel products unit processes oil into unleaded gasoline, diesel fuel, and jet fuel. Calumet also produces asphalt. The company has 2,600 specialty products accounts and 90 fuel products accounts.