Total U.S. coal production for the week ended Dec. 29, 2018, increased 7.1% year over year to 11.4 million tons from 10.6 million tons, according to data from the U.S. Energy Information Administration.
For the 52 weeks ended Dec. 29, 2018, production was 751.9 million tons, representing a year-over-year decrease of 4.2%, while year-to-date coal output fell 2.8% year over year to 750.4 million tons.
The western region's coal production for the week reached 6.3 million tons, posting a 6.2% gain from the prior year's 5.9 million tons. Data for the western region covers Powder River Basin mines.
Coal production from Appalachian mines totaled 3.0 million tons, up 10.8% from the year-ago week's 2.8 million tons.
The interior region's production increased 4.8% to 2.0 million tons, compared to 1.9 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.