The USA, being the second largest producer, have already passed peak production of high quality coal in 1990 in the Appalachian and the Illinois basin. (resilience.org)
This production and reserve base allows Murray Energy to provide electric utility customers with low cost, reliable, and high quality coal supplies. (murrayenergycorp.com)
The Warwickshire Thick Coal Seam consists of extremely high quality coal in a seam approximately 8 metres thick. (theoildrum.com)