FILE - In this April 4, 2013 file photo, a mechanized shovel loads coal onto a haul truck at the Cloud Peak Energy's Spring Creek mine near Decker, Mont. Montana tax authorities are seeking $3.4

... more 

FILE - In this April 4, 2013 file photo, a mechanized shovel loads coal onto a haul truck at the Cloud Peak Energy's Spring Creek mine near Decker, Mont. Montana tax authorities are seeking $3.4 million from the Wyoming coal company that used a practice under investigation by federal officials to place a value on the coal it was selling. The state says the taxes are owed on sales between 2005 and 2007 from the Spring Creek mine near Decker, one of the largest coal mines in the U.S. (AP Photo/Matthew Brown) less 

1 / 10
Associated Press
Tue, Oct 15, 2013 9:13 PM EDT