Coal-Supply Regions

Arch Coal possess one of the industry's most geographically diverse and balanced operating profiles providing a powerful foundation on which to build out metallurgical and thermal volumes. The company serves a broad mix of power producers and industrial accounts here and around the world - offering a vast metallurgical and thermal product slate and a wide range of logistical options for delivery.

Powder River Basin
Arch is the second largest overall producer and is the top producer of 8,800-Btu coal in the Southern PRB - the nation's largest coal-supply region. Operating two large surface mines, Black Thunder and Coal Creek, the company ships coal to power producers across the U.S., as well as overseas. Arch controls nearly 3.3 billion tons of reserves in the PRB located in Wyoming and Montana.

Western Bituminous Region
Arch is the leading producer in the Western Bituminous region, which is located in Colorado, Utah and Southern Wyoming. Arch operates four large underground longwall mines and one surface mine and markets and ships coal directly to domestic and international power producers and industrial customers. The company has a total of 455 million tons of proven and probable reserves in the region.

Appalachia
The acquisition of ICG has made Arch the second largest producer in Central Appalachia as well as a top five U.S. producer of metallurgical coal. Arch has a 1.08 billion reserve base in Appalachia. At least 431 million tons of those reserves are characterized as metallurgical quality - comprised of low volatile coal, high volatile A and B coals as well as pulverized injection coal. This gives Arch one of the most extensive and highest quality metallurgical coal reserve bases in the U.S. coal industry.

Illinois Basin
Along with the company's 49% equity interest in Knight Hawk Coal, Arch operates the highly competitive, low-cost Viper mine in the Illinois Basin. Arch's extensive and competitive reserve base of 736 million tons provides a solid platform in a growth region well positioned to export to the Atlantic Basin market via the Gulf of Mexico. In fact, Arch is currently in the process of permitting the low-chlorine Lost Prairie reserves in Southern Illinois.