Calumet Specialty Products Partners, L.P. manufactures, formulates, and markets a diversified slate of specialty branded products and renewable fuels to various consumer-facing and industrial markets in North America and internationally. It operates through Specialty Products and Solutions; Performance brands; Montana/Renewables; and Corporate segments. The Specialty Products and Solutions segment offers various solvents, waxes, customized lubricating oils, white oils, petrolatums, gels, esters, and other products. Its Montana/Renewables segment focuses on processing renewable feedstocks into renewable diesel, sustainable aviation fuel, renewable hydrogen, renewable natural gas, renewable propane, and renewable naphtha. It also processes Canadian crude oil into conventional gasoline, diesel, jet fuel, and specialty grades of asphalt. The Performance Brands segment blends, packages, and markets high performance products through Royal Purple, Bel-Ray, and TruFuel brands. The company serves wholesale distributors and retail chains. Calumet GP, LLC serves as the general partner for Calumet Specialty Products Partners, L.P. The company was founded in 1919 and is headquartered in Indianapolis, Indiana.