Total U.S. coal production for the week ended Jan. 12 rose 13.9% year over year to 15.1 million tons from 13.2 million tons, according to data from the U.S. Energy Information Administration.

For the 52 weeks ended Jan. 12, production was 753.8 million tons, representing a year-over-year decline of 2.0%, while year-to-date coal output rose 8.5% year over year to 23.7 million tons.

The western region's coal production for the week reached 8.1 million tons, posting a 10.9% improvement from the prior year's 7.3 million tons. Data for the western region covers Powder River Basin mines.

Coal production from Appalachian mines totaled 4.2 million tons, climbing 20.1% from the year-ago week's 3.5 million tons.

The interior region's production improved 14.4% to 2.7 million tons, compared to 2.4 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.