Core Natural Resources, Inc. (NYSE:CNR) received a boost on December 18 when the company revealed that it had resumed ...

In Emerald's longwall operation, continuous mining machines are used to bore connecting tunnels through the coal seam -- as much as 210 ft. per day -- and to install 8-ft.-long steel roof bolts ...

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ROUNDUP — The Mine Safety and Health Administration ordered Signal Peak Mine to shut down its longwall mining machine Tuesday following an accident that injured a miner last week. The mine will also ...

Core Natural Resources has successfully recovered mining equipment from deep underground and repositioned its longwall ...

This weekend's testing of two methane monitors from the Upper Big Branch coal mine in West Virginia has not detected any evidence of tampering, NPR has learned. The methane monitors were removed from ...