ST. LOUIS, July 27, 2012 -- The board of directors of Arch Coal, Inc. (NYSE:ACI) today declared a quarterly cash dividend of $0.03 per share on the company's common stock.  The dividend is payable September 14, 2012 to shareholders of record on August 31, 2012.

U.S.-based Arch Coal is a top five global coal producer and marketer.  Arch is the most diversified American coal company, with mining complexes across every major U.S. coal supply basin.  Its core business is supplying cleaner-burning, low-sulfur thermal and metallurgical coal to power generators and steel manufacturers on five continents.