Arch's Coal Creek Mine Earns Second Consecutive RMCMI Safety Award Among Mines in Eight States

Arch's Coal Creek Mine Earns Second Consecutive RMCMI Safety Award Among Mines
                               in Eight States

PR Newswire

GILLETTE, Wyo., July 1, 2013

GILLETTE, Wyo., July 1, 2013 /PRNewswire/ --Arch Coal, Inc. (NYSE:ACI) today
announced that Thunder Basin Coal Company's Coal Creek mine has received the
Rocky Mountain Coal Mining Institute's 2013 Safety Award for exceptional
safety performance. This is the second consecutive year Coal Creek has earned
this recognition.


"I want to commend the employees of Coal Creek for their unwavering focus on
best-in-class safety," said Jim Opfer, Coal Creek's general manager. "Coal
Creek is a great example of Arch's philosophy that safety and productivity go

The award identifies Coal Creek as the safest small-operator surface mine
among industry peers in the RMCMI's eight-state region. The award marks the
second consecutive year in which Coal Creek has been recognized for its superb
safety record. Its safety performance was measured based on strict standards
from the Mine Safety and Health Administration. The U.S. national coal
industry average is 2.35 lost-time incidents per 200,000 employee-hours. Coal
Creek had zero lost-time incidents in 2012.

In all, Coal Creek's 145 employees have surpassed 2.3 million employee-hours
without a lost-time incident and have operated the mine for more than three
years without a reportable safety incident.

"Coal Creek's total zero incident rate puts you at the head of the pack that
is increasingly getting better each year," said Judy Colgan, executive
director of RMCMI. "Congratulations to all the employees at Coal Creek mine on
winning the award, especially for being recognized two years in a row."

Arch maintained its leading position in the U.S. coal industry for safety
performance for the seventh consecutive year in 2012.Arch's 2012 lost-time
safety rate was one-third the national coal industry average. In addition,
Arch received a total of 17 national and state safety awards and honors in

About Arch Coal
U.S.-based Arch Coal, Inc. is one of the world's top coal producers for the
global steel and power generation industries, serving customers in 25
countries on five continents. Its network of mining complexes is the most
diversified in the United States, spanning every major coal basin in the
nation. The company controls a pro forma 5.4-billion-ton reserve base of
high-quality metallurgical and thermal coals, with access to all major
railroads, inland waterways and a growing number of seaborne trade channels.
Thunder Basin Coal Company is an Arch Coal subsidiary.

SOURCE Arch Coal, Inc.

Contact: Media, Kim Link, +1-314-994-2936
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