Arch Resources

Arch Resources, Inc. , previously known as Arch Coal, is the second-largest coal producer in the United States, claiming to hold 12% of America’s coal supply (140 million tons in 2005). The company's mines are in Wyoming, Utah, Colorado, West Virginia, Kentucky, and Virginia. The corporate headquarters are in St. Louis, Missouri.
The company claims a large reserve of coal that has not been mined yet. It is a total of 3.1 billion tons of mostly low-sulfur coal.
Arch Coal shares are traded on the New York Stock Exchange under the ticker symbol ACI.
History.
Arch Mineral Corporation began in 1969, as a partnership between Ashland Oil (now Ashland, Inc.) and the Hunt family of Dallas. Arch Coal was formed in July 1997 when the privately held Arch Mineral merged with the publicly traded Ashland Coal, Inc., which had been formed in 1975 as a subsidiary of Ashland Oil.
In June 1998, Arch Coal purchased the coal fields and mines of the Atlantic Richfield company, which were mostly in the central Rocky Mountains.