Arch Coal idles Cumberland River coal complex, eliminates 213 full-time jobs Arch Coal announced that it is idling the Cumberland River Coal Company complex. The Cumberland River complex comprises two underground operations and related facilities. 213 full-time positions will be eliminated by idling Cumberland River. "With this move, we are actively responding to currently challenged metallurgical coal markets while striving to enhance our overall competitive cost position in Appalachia," said John Eaves, Arch's president and CEO. "Our strategy is to increasingly shift our portfolio toward higher-margin, lower-cost metallurgical coal operations, while retaining our valuable reserves for when market conditions strengthen in the future."