Arch Western Resources, LLC
Arch Western Resources, LLC (Arch Western), is a subsidiary of Arch Coal, Inc., one of the largest coal producers in the United States. Arch Western is principally engaged in the production of coal from the surface and underground mining. The company markets and sells coal under long term contracts to power plants and industrial facilities. Arch Western owns and operates about seven active mines in the major low-sulfur coal basins. The company operates through two reportable business segments which are based on the low-sulfur coal producing regions in the United - the Powder River Basin (PRB), and Western Bituminous region. Arch Western is headquartered at St. Louis, the US.