ST. LOUIS (August 26, 2008) - Arch Coal, Inc. (NYSE:ACI) today announced that its Chairman and Chief Executive Officer, Steven F. Leer, will speak at the Lehman Brothers CEO Energy/Power Conference in New York City on Thursday, September 4, 2008

Interested investors may access a live audio webcast of the presentation at 1:45 p.m. E.D.T. on September 4 at Arch Coal's Web site at http://investor.archcoal.com/events.cfm. A replay of the webcast also will be available at the same URL for 30 days.

St. Louis-based Arch Coal is one of the largest U.S. coal producers, with revenues of $2.4 billion in 2007. 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.