Total U.S. coal production for the week ended March 9 fell 9.6% year over year to 13.2 million tons from 14.6 million tons, according to data from the U.S. Energy Information Administration.
For the 52 weeks ended March 9, production was 745.2 million tons, representing a year-over-year decline of 2.1%, while year-to-date coal output dropped 4.7% year over year to 134.6 million tons.
The western region's coal production for the week reached 7.1 million tons, posting an 11.6% reduction from the prior year's 8.0 million tons. Data for the western region covers Powder River Basin mines.
Coal production from Appalachian mines totaled 3.7 million tons, falling 5.8% from the year-ago week's 3.9 million tons.
The interior region's production shrank 9.0% to 2.4 million tons, compared to 2.6 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.