Westmoreland Coal Company (NasdaqGM:WLB) today announced that its Westmoreland Kemmerer, Inc. subsidiary entered into a six-year collective bargaining agreement with the represented employees at its Kemmerer Mine located in Lincoln County, Wyoming. The new agreement with the United Mine Workers of America (UMWA) is effective May 1, 2012, and will expire April 30, 2018. “We are very pleased that we were able to cooperatively enter into this long-term agreement with the UMWA in such a short time after taking ownership of the mine. This new agreement provides us certainty to continue to serve the needs of our customer base,” stated Keith E. Alessi, Chief Executive Officer. “We would also like to thank the leadership and membership of the UMWA for how collaborative they were in moving through this process.” Mike Dalpiaz, UMWA International District 22 Vice President, said that, “I am pleased that we could sit down with Westmoreland and work out an agreement for our members at the Kemmerer mine three months early. Westmoreland has just acquired the mine, and I commend the company’s willingness to set a new and refreshing tone for a lasting relationship at that mine. The membership clearly does too, as they have overwhelmingly ratified the agreement.” About Westmoreland Coal Company Westmoreland Coal Company is the oldest independent coal company in the United States. The Company’s coal operations include coal mining in the Powder River Basin in Montana, sub-bituminous mining in Wyoming, and lignite mining operations in Montana, North Dakota and Texas. Its power operations include ownership of the two-unit ROVA coal-fired power plant in North Carolina. For more information, visit www.westmoreland.com. About the United Mine Workers of America The United Mine Workers of America represents 105,000 coal industry employees, clean coal technicians, manufacturing workers, health care employees and public service employees. Headquartered in Triangle, Va., the UMWA represents more coal miners than any union in the world. For more information, visit www.umwa.org.