ST.  LOUIS, February 26, 2015 – Arch Coal, Inc. (NYSE:ACI) today announced that James  A. Sabala, 60, has been elected to its board of directors, effective immediately.  Sabala will serve on the board's audit and finance committees.

"We are very pleased to welcome Jim to our  board," said John W. Eaves, Arch's president and CEO."Jim is a highly respected  leader in the mining sector, and brings with him tremendous financial acumen  and a wealth of knowledge and expertise in corporate finance. I am confident he  will be a valuable addition to the Arch board, and we look forward to his  counsel as we continue to position Arch for long-term success in domestic and international  coal markets."  

Sabala currently serves as the senior vice president and chief  financial officer of Hecla Mining Company, a precious metal mining company  headquartered in Coeur d'Alene, Idaho. Prior to joining Hecla in 2008, Sabala  served as executive vice present and chief financial officer for Coeur d' Alene  Mines Corporation and vice president and chief financial officer for Stillwater  Mining Company. Sabala also held various other positions with Coeur d'Alene  Mines including controller, treasurer and vice president of finance. Early in  his career, Sabala worked as a certified public accountant for Price Waterhouse  and Company.  

Sabala completed Stanford University's Executive Education Financial  Management program, a joint Stanford and London School of Business'  International Investment Management program and earned a Bachelor of Science  degree in business and accounting from the University of Idaho. In addition,  Mr. Sabala serves on the Advisory Board to the University of Idaho College of  Business.

For a full list of directors, committee assignments and other corporate  governance documents, visit Arch's website at http://investor.archcoal.com.

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 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 more than 5 billion tons of  high-quality metallurgical and thermal coal reserves, with access to all major  railroads, inland waterways and a growing number of seaborne trade channels. For  more information, visit www.archcoal.com.  

Forward-Looking Statements:  This press release contains "forward-looking statements" – that is, statements related to future, not past,  events.  In this context, forward-looking  statements often address our expected future business and financial  performance, and often contain words such as"expects,""anticipates," "intends,""plans,""believes,""seeks," or"will."  Forward-looking statements by their nature  address matters that are, to different degrees, uncertain.  For us, particular uncertainties arise from  changes in the demand for our coal by the domestic electric generation  industry; from legislation and regulations relating to the Clean Air Act and  other environmental initiatives; from operational, geological, permit, labor  and weather-related factors; from fluctuations in the amount of cash we  generate from operations; from future integration of acquired businesses; and  from numerous other matters of national, regional and global scale, including  those of a political, economic, business, competitive or regulatory nature.  These uncertainties may cause our actual  future results to be materially different than those expressed in our  forward-looking statements.  We do not  undertake to update our forward-looking statements, whether as a result of new  information, future events or otherwise, except as may be required by law.  For a description of some of the risks and  uncertainties that may affect our future results, you should see the risk  factors described from time to time in the reports we file with the Securities  and Exchange Commission.