Coal exports fall on Asian oversupply, WSJ reports Coal exports are slowing, reports the Wall Street Journal. In a troubling sign for U.S. coal producers, shipments fell 31% in April from March driven largely by an oversupply in Asia for metallurgical coal used in steel making. As a result, U.S. producers are now at a further disadvantage to overseas competitors because weakening metallurgical-coal prices are making high-cost U.S. production less profitable for export.Reference Link