ST. LOUIS (July 22, 2009) - The board of directors of Arch Coal, Inc. (NYSE:ACI) today declared a quarterly dividend of $0.09 per share on the company's common stock. The dividend is payable September 15, 2009 to shareholders of record on September 1, 2009.

St. Louis-based Arch Coal is one of the largest U.S. coal producers, with revenues of $3.0 billion in 2008. Through its national network of mines, Arch supplies cleaner-burning, low-sulfur coal to fuel roughly 6 percent of the nation's electricity. The company also ships coal to domestic and international steel manufacturers as well as international power producers.