Total U.S. coal production for the week ended May 25 fell 10.1% year over year to 13.1 million tons from 14.5 million tons, according to data from the U.S. Energy Information Administration.
For the 52 weeks ended May 25, production totaled 736.5 million tons, a year-over-year decline of 3.5%, while year-to-date coal output fell 5.8% year over year to 278.4 million tons.
The western region's coal production for the week reached 7.0 million tons, decreasing by 7.8% year over year from 7.6 million tons. Data for the western region covers Powder River Basin mines.
Coal production from Appalachian mines totaled 3.6 million tons, declining 12.6% year over year from 4.2 million tons.
Production in the interior region fell 12.5% to 2.4 million tons, compared to 2.8 million tons a year ago. Interior region data covers mines in the Illinois Basin.
The EIA's production data is derived from rail carload estimates.