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  Reserve Rank by 2015 Rank by Base Reserve Production Production (Billion Base (Million Tons) Tons) Montana 118.7 1 41.9 6 Illinois 103.7 2 56.1 4 Wyoming 58.5 3 375.8 1 West Virginia 30.7 4 95.6 2 Kentucky 28.3 5 61.4 3 Pennsylvania 26.4 6 50.0 5 Ohio 22.9 7 17.0 12 Colorado 15.7 8 18.9 11 Texas 11.9 9 35.9 7 New Mexico 11.8 10 19.7 10 Indiana 8.9 11 34.3 8 North Dakota 8.7 12 28.8 9 Alaska 6.1 13 1.2 14 Missouri 6.0 14 .1 15 Utah 5.0 15 14.4 13 Source: U.S. Energy Information Administration
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