Calumet Inc is a producer of specialty products, including base oils, specialty oils, solvents, esters, and waxes, as well as a variety of fuel and fuel-related products, including asphalt and heavy fuel oils. The company manufactures, formulates, and markets a variety of specialty branded products to customers in various consumer-facing and industrial markets. Its segments include: Specialty Products and Solutions; Montana/Renewables; Performance Brands; and Corporate. The company generates maximum revenue from Fuels, asphalt and other by-products.