Westmoreland Coal Company (NasdaqGM:WLB) today announced that its Western Energy Company subsidiary entered into a six-year collective bargaining agreement with the represented employees at its Rosebud Mine located in Colstrip, Montana. The new agreement with the International Union of Operating Engineers (IUOE) Local 400 is effective January 1, 2013, and will expire February 28, 2019. “We are pleased that we were able to cooperatively enter into this long-term agreement with the IUOE prior to the expiration of the prior agreement. This new agreement provides us certainty to continue to serve the needs of our customers,” stated Robert P. King, Chief Operating Officer and President. “We would like to thank the leadership and membership of the IUOE for their commitment to a collaborative process and look forward to continued safe and successful mining operations at the Rosebud Mine.” “IUOE Local 400 and its bargaining team are pleased to announce that they have reached a six year agreement with Westmoreland Coal Co. This contract is the direct result of the Union and the Company working together to make sure that both have the ability to look towards the future with some degree of certainty and stability that will benefit everyone,” stated Chuck Cashell, Business Manager of the IUOE Local 400. “After a very contentious negotiations and strike in 2009, the Company and the Union came together and with the assistance of the federal mediation and conciliation service (FMCS) used interest based bargaining as a framework to do things differently this time around. We feel that this process has worked well and has been successful in addressing the needs of both parties.” 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 International Union of Operating Engineers The International Union of Operating Engineers is a diversified trade union that primarily represents operating engineers, who work as heavy equipment operators, mechanics, and surveyors in the construction industry, and stationary engineers, who work in operations and maintenance in building and industrial complexes, and in the service industries. IUOE also represents nurses and other health industry workers, a significant number of public employees engaged in a wide variety of occupations, as well as a number of job classifications in the petrochemical industry. Founded in 1896, IUOE today has approximately 400,000 members in 123 local unions throughout the United States and Canada. For more information, visit www.iuoe.org.