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Calumet Specialty Products - an American company engaged in refining crude oil and production of motor oils, waxes, solvents, oils, gasoline, fuel for planes and asphalt. The company employs over 600 staff.Financial revenues of the company in 2009 amounted to $ 2,489.0 million, profit was $ 44.4 million.

Official site of Calumet Specialty Products

http://www.penreco.com/