What percentage of the US total coal production comes from here?

According to the U. S. Energy Information Administration (EIA), in 2015 Wyoming, West Virginia, Kentucky, Illinois, and Pennsylvania produced about 639 million short tons (580 million metric tons) representing 71% of total U. S. coal production in the United States.

639 million short tons (580 million metric tons) representing 71% of total U. S. coal production in the United States.

Explanation:

In 2018, about 756 million short tons of coal were produced in 23 U. S. states. Surface mines were the source of 63% of total U. S. coal production and accounted for 63% of the total number of mines.