ST. LOUIS (July 14, 2004) - Arch Coal, Inc. (NYSE:ACI) will discuss its second quarter financial results in a conference call that will be broadcast live over the Internet on Monday, July 26, at 11:00 a.m. ET. Participating in the call will be Steven F. Leer, Arch's president and chief executive officer, and Robert J. Messey, Arch's senior vice president and chief financial officer.

The webcast will be accessible via the "investor" section of the Arch Coal Web site at www.archcoal.com. Following the live event, replays of the webcast will be available on the site for three weeks.

Arch Coal's second quarter earnings release will be distributed via PR Newswire before the market opens on Monday, July 26, and will be posted to the company's Web site at that time.

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