PR Newswire BRISTOL, Va., Aug. 15, 2013 BRISTOL, Va., Aug. 15, 2013 /PRNewswire/ --
Alpha Natural Resources Inc. (NYSE: ANR), a leading U.S. coal producer, today announced that subsidiary Cumberland Coal Resources LP has mitigated adverse geological conditions in the headgate area of its Cumberland underground longwall mine in Greene County, Pa. As a result, the company has resumed operations and lifted the force
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