ST. LOUIS (October 12, 2005) – Arch Coal, Inc.'s (NYSE:ACI) President and Chief Executive Officer Steven F. Leer will guest host CNBC's daily program "Squawk Box" on Friday, October 14. The nationally televised program airs weekdays from 7:00 a.m. to 10:00 a.m. Eastern Time.

Leer has made regular appearances on CNBC in recent years. He will host the three-hour broadcast alongside CNBC veteran Mark Haines.

A complete list of guests who will appear on Friday's show will be available at: http://moneycentral.msn.com/Content/CNBCTV/TV_Info/GuestList.asp

St. Louis-based Arch Coal is the nation's second largest coal producer, with subsidiary operations in West Virginia, Kentucky, Virginia, Wyoming, Colorado and Utah. Through these operations, Arch Coal provides the fuel for approximately 7% of the electricity generated in the United States. Steven F. Leer has served as Arch Coal's president and CEO since the company was formed in 1997.