ST. LOUIS, July 22, 2010 -- The board of directors of Arch Coal, Inc. (NYSE: ACI) today declared a quarterly cash dividend of $0.10 per share on the company's common stock. The dividend is payable September 15, 2010 to shareholders of record on September 1, 2010.

St. Louis-based Arch Coal is the second largest U.S. coal producer. Through its national network of mines, Arch supplies cleaner-burning, low-sulfur coal to fuel roughly 8 percent of the nation's electricity. The company also ships coal to domestic and international steel manufacturers as well as international power producers.