U.S. coal production dropped by more than 10% in 2015 to 897 million short tons (MMst), the lowest production level since 1986. Production in all three major coal-producing regions (the Appalachian, the Interior, and the Western) declined, as consumption of coal for electric power generation, industrial, and other uses fell by 13% to 798 MMst in 2015.
Source: Today In Energy