ST. LOUIS, Jan. 18, 2012 -- Arch Coal, Inc. (NYSE: ACI) will discuss its fourth quarter and full year 2011 financial results in a conference call that will be broadcast live over the Internet on Friday, Feb. 10 at 11:00 a.m. E.S.T.  Participating on the call will be Arch's Chairman and Chief Executive Officer Steven F. Leer, President and Chief Operating Officer John W. Eaves, and Senior Vice President and Chief Financial Officer John T. Drexler.

The webcast will be accessible via the "investor" section of the Arch Coal website at http://investor.archcoal.com/.  Following the live event, a replay and podcast download will be available on the site for approximately one month.

Arch Coal's fourth quarter earnings release will be distributed via PR Newswire before the market opens on Friday, Feb. 10, and will be posted to the company's website at that time.

U.S.-based Arch Coal is a top five global coal producer and marketer.  Arch is the most diversified American coal company, with mining complexes across every major U.S. coal supply basin.  Its core business is supplying cleaner-burning, low-sulfur thermal and metallurgical coal to power generators and steel manufacturers on four continents.