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This excerpt taken from the ACI 10-K filed Mar 1, 2010. Powder
River Basin
Black Thunder. Black Thunder is a surface
mining complex located on approximately 33,800 acres in
Campbell County, Wyoming. The Black Thunder mining complex
extracts steam coal from the Upper Wyodak and Main Wyodak seams.
The Black Thunder mining complex shipped 81.2 million tons
of coal in 2009.
We control a significant portion of the coal reserves through
federal and state leases. The Black Thunder mining complex had
approximately 1.5 billion tons of proven and probable
reserves at December 31, 2009. The air quality permit for
the Black Thunder mine allows for the mining of coal at a rate
of 190.0 million tons per year. Without the addition of
more coal reserves, the current reserves could sustain current
production levels until 2021 before annual output starts to
significantly decline, although in practice production would
drop in
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phases extending the ultimate mine life. Several large tracts of
coal adjacent to the Black Thunder mining complex have been
nominated for lease, and other potential large areas of unleased
coal remain available for nomination by us or other mining
operations. The U.S. Department of Interior Bureau of Land
Management, which we refer to as the BLM, will determine if the
tracts will be leased and, if so, the final boundaries of, and
the coal tonnage for, these tracts.
The Black Thunder mining complex currently consists of seven
active pit areas and three owned loadout facilities. We ship all
of the coal raw to our customers via the Burlington
Northern-Santa Fe and Union Pacific railroads. We do not
process the coal mined at this complex. Each of the loadout
facilities can load a 15,000-ton train in less than two hours.
Coal Creek. Coal Creek is a surface mining
complex located on approximately 7,400 acres in Campbell
County, Wyoming. The Coal Creek mining complex extracts steam
coal from the Wyodak-R1 and Wyodak-R3 seams. The Coal Creek
mining complex shipped 9.8 million tons of coal in 2009.
We control a significant portion of the coal reserves through
federal and state leases. The Coal Creek mining complex had
approximately 197 million tons of proven and probable
reserves at December 31, 2009. The air quality permit for
the Coal Creek mine allows for the mining of coal at a rate of
50.0 million tons per year. Without the addition of more
coal reserves, the current reserves will sustain current
production levels until 2025 before annual output starts to
significantly decline. One tract of coal adjacent to the Coal
Creek mining complex has been nominated for lease, and other
potential areas of unleased coal remain available for nomination
by us or other mining operations. The BLM will determine if
these tracts will be leased and, if so, the final boundaries of,
and the coal tonnage for, these tracts.
The Coal Creek complex currently consists of two active pit
areas and a loadout facility. We ship all of the coal raw to our
customers via the Burlington Northern-Santa Fe and Union
Pacific railroads. We do not process the coal mined at this
complex. The loadout facility can load a 15,000-ton train in
less than three hours.
These excerpts taken from the ACI 10-K filed Feb 27, 2009. Powder
River Basin
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Powder River Basin
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