Oxbow

Oxbow's primary businesses are the mining and marketing of energy and bulk commodities such as coal, natural gas, petroleum, metallurgical and calcined coke. The company markets petroleum coke, a byproduct of the oil refinery process. Uses for petroleum coke include power generation, cement kilns, sugar mills and aluminum manufacturing. The company trades in other carbon and industrial products such as coal, gypsum, bauxite, and clinker. William Koch founded the company in 1983.