“This tract is expected to more than double the reserves at the Antelope mine and, along with the additional coal within the State of Wyoming lease, add about 12 years of production,” said Colin Marshall, president and CEO, CPE. At year-end 2010, the company’s Antelope mine had an estimated 252 million tons of coal reserves, and CPE had an estimated total reserve of 970 million tons of coal. The BLM also recently announced a June 15, 2011, sale date for the West Antelope II South Coal Tract, which contains approximately 56 million mineable tons, according to BLM estimates.