Coal production in the U.S. was estimated to rebound above 9 million short tons in the week ending December 7, up over 10% week on week, according to data from the Energy Information Administration (EIA) on December 12.

The estimated output was 9.84 million short tons (8.93 million tonnes) over the week, up 10.84% from a week ago but down 13.37% from the previous year, data showed.

Coal production in Wyoming and Montana combined was estimated to hit 4.29 million short tons in the given period, rising 11.31% from the previous week but declining 17.65% year on year.

Illinois's coal output was estimated to increase by 9.58% week on week but drop 4.83% on the year to 672,300 short tons in the same period, while coal production in Appalachian was estimated at 2.94 million short tons, growing 10.55% from a week earlier but retreating 10.06% from a year ago.

U.S. coal output totaled 478 million short tons in the year to date, a 12% drop from 543 million short tons in the same period last year, the EIA data showed.

U.S. rail coal shipments were 57,764 rail wagons over the week, decreasing 5,638 from a week earlier and 9,147 from the preceding year. The year-to-date rail coal shipments totaled 2.76 million wagons, down 14.1% year on year.