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Rising Costs, Not Natural Gas, Main Driver of Coal Mine Closures .Apr 9, 2018 . Rising Costs, Not Natural Gas, Main Driver of Coal Mine Closures . Part of the reason costs climbed at Appalachian coal mines is tied to the region's . Deskins, an associate professor of economics at West ia University.asam coal mine west mulia 33555,West ia Mountaintop Coal Removal Photos - Business InsiderFeb 14, 2014 . It became a popular West ia coal mining technique because it's far cheaper than underground mining and requires much less manpower.West ia Mountaintop Coal Removal Photos - Business InsiderFeb 14, 2014 . It became a popular West ia coal mining technique because it's far cheaper than underground mining and requires much less manpower.

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