Arch Coal was formed in July 1997 through the
merger of publicly traded Ashland Coal, Inc. and
privately held Arch Mineral Corporation. Arch
Mineral had its origins in 1969, when it was
formed as a partnership between Ashland Oil (now
Ashland Inc.) and the Hunt family of Dallas,
Texas; Ashland Coal was formed in 1975 as a
wholly owned subsidiary of Ashland Oil. With the
completion of the merger, Arch became the
leading producer of low-sulfur coal in the
eastern United States.
In June 1998, Arch Coal expanded into the
western United States with the acquisition of
the coal assets of Atlantic Richfield. Included
in this transaction were the Black Thunder and
Coal Creek mines in the Powder River Basin of
Wyoming; the West Elk longwall mine in Gunnison
County, Colorado; and a 65% interest in Canyon
Fuel Company, which operates three longwall
mines in Utah.
In October 1998, Arch added to its Powder River
Basin reserves when it was the winning bidder on
Thundercloud, a 412-million-ton federal reserve
tract adjacent to the Black Thunder mine.
In July 2004, Arch Coal solidified its position
as a leading producer of high-Btu, low-sulfur
western bituminous coal with the acquisition of
the remaining 35% interest in Canyon Fuel
Company and its 161-million-ton reserves.
In August 2004, Arch again expanded its position
in the Powder River Basin with the acquisition
of Triton's North Rochelle mine adjacent to
Arch's existing Black Thunder operation. By
integrating the North Rochelle mine with Black
Thunder, Arch created the premier mine in the
nation's fastest growing coal supply region.
In September 2004, Arch again added to its
Powder River Basin reserves when it was the
winning bidder on Little Thunder, a
719-million-ton federal reserve tract adjacent
to the Black Thunder mine.
In December 2005, Arch Coal sold select eastern
assets to Magnum Coal Company to unlock the
value of some of its Central Appalachian
holdings, sharpened its focus in that region,
and strengthened its balance sheet in
preparation for future growth.
In August 2006, Arch acquired a one-third
interest in Knight Hawk Coal, a growing coal
producer in the Illinois Basin.
In October 2009, Arch acquired Rio Tinto's
Jacobs Ranch mine and blended it with Black
Thunder mine in the southern Powder River Basin of
Wyoming, creating the single largest coal mining
in the world.
In November 2009, Arch acquired the rights to
mine 731 million tons of Otter Creek coal
reserves in the northern Powder River Basin of
On June 15, 2011, Arch acquired International
Coal Group (ICG) and cemented its place as a top
five global coal supplier and a top 10
metallurgical coal producer and marketer.
In December 2011, Arch Coal became the
successful bidder for a 222 million ton federal
coal lease known as the South Hilight tract in
the southern Powder River Basin.
Arch Coal is one of the world's top coal producers and
marketers for the global steel and power
generation industries. In 2012, we sold 141 million tons of coal to
customers in 25 countries on five continents. The company is listed on the New
York Stock Exchange (NYSE: ACI) and maintains
its corporate headquarters in St. Louis, Mo.