Westmoreland Coal Company is an energy company employing approximately 1,370 employees (58% are union) whose operations include six surface coal mines in Montana, Wyoming, North Dakota and Texas, and two coal-fired power-generating units in North Carolina.  WLB produced 24.9 mm tons of coal in 2013 as the 10th largest US coal company. WLB entered a definitive Arrangement Agreement to acquire Sherritt Intl on Dec 24, 2013. WLB had an estimated 514 mm tons of total proven or probable coal reserves as of December 31, 2013.