Total U.S. coal production for the week ended Dec. 8 declined 4.2% year over year to 15.0 million tons from 15.7 million tons, according to data from the U.S. Energy Information Administration.
For the 52 weeks ended Dec. 8, production was 751.9 million tons, representing a year-over-year decline of 4.6%, while year-to-date coal output dropped 2.8% year over year to 708.8 million tons.
The western region's coal production for the week reached 8.4 million tons, posting a 4.1% decrease from the prior year's 8.7 million tons. Data for the western region covers Powder River Basin mines.
Coal production from Appalachian mines totaled 4.0 million tons, sagging 1.6% from the year-ago week's 4.1 million tons.
The interior region's production contracted 8.1% to 2.6 million tons, compared to 2.9 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.