According to figures by the U.S. Energy Information Administration, Wyoming is still America's biggest coal-producing state. its production has been in decline, by 20.9 percent from 2015 to 2016.
According to the U.S. Census Bureau, the two biggest coal-producing states, Wyoming and West Virginia, are the two states that have most recently seen the biggest decline in population with -1 and -0.7 respectively.
The Leading U.S. States by coal production in tons is given in this chart. The coal production of the year 2015 and 2016 was given with the percent change. While in Texas the coal production has seen an enormous change with +8.6. The Change of percent in coal production among the states are as follows: