ST. LOUIS (Sept. 4, 2002) – Arch Coal (NYSE: ACI) today announced that its President and Chief Executive Officer, Steven F. Leer, will speak at Lehman Brothers’ 2002 CEO Energy/Power Conference in New York City on Sept. 5.

Leer’s live presentation can be accessed through audio webcast at approx. 4:00 p.m. Eastern Time. The address is: http://customer.ibeam.com/lehm003/090302a_byRFD/. Registration is required.

Replay of the webcast also will be available from Sept. 6 to Dec. 5 at the same URL address.

Arch Coal is the nation’s second largest coal producer and mines low-sulfur coal exclusively. Through its subsidiary operations in West Virginia, Kentucky, Virginia, Wyoming, Colorado and Utah, Arch provides the fuel for approximately 6 percent of the electricity generated in the United States.