The US coal industry has gone through a number of gradual shifts in recent decades. The industry has become more concentrated, and mine productivity has improved. More low-sulfur coal and less high sulfur coal is today being produced. Less coal is exported, in part because of a strong US dollar. Improved production methods, such as greater utilisation of and improvements in longwall mining technology, have lowered the cost of underground mining, although surface mining continues to hold a substantial cost advantage. base is estimated by the Energy Information Administration (EIA) at 508...
The US coal industry has gone through a number of gradual shifts in recent decades. The industry has become more concentrated, and mine productivity h...
