Core Natural Resources' low-cost operations, diverse coal grades, and export infrastructure provide a competitive advantage.

It said it believes Leer South will be able to resume development ... Core was officially created this month with the merger of Consol Energy and Arch Resources. The company produces thermal ...

However, ARCH’s coking coal sales volumes are expected to have declined due to ongoing mining challenges in the first longwall district at its Leer South mine. This might have adversely impacted ...

Core Natural Resources will temporarily seal the longwall operation of the Leer South operation in Barbour County. The seal will starve the underground fire of oxygen. Core officials say the ...

An official from a mine that was temporarily sealed after a fire in January will address the public during a special Barbour ...

Based on its collaborative, ongoing discussions with regulatory authorities, Core believes Leer South will be able to ... industry leaders CONSOL Energy and Arch Resources and is based in ...