RegulatoryMay 4, 2026, 04:38 PM
Core Natural Resources Subsidiary Mine Receives Methane Danger Order
AI Summary
Core Natural Resources, Inc.'s subsidiary, Mingo Logan Coal LLC, received an imminent danger order on April 29, 2026, at its Mountaineer II mine. The order was issued by the Mine Safety and Health Administration due to elevated methane levels, which exceeded 5.0% in some areas. Mine personnel promptly addressed the condition, leading to the order's termination on the same day, and no injuries or illnesses occurred.
Key Highlights
- Core Natural Resources' subsidiary, Mingo Logan Coal LLC, received an imminent danger order on April 29, 2026.
- The order was issued at the Mountaineer II mine in Logan County, West Virginia.
- The reason was elevated methane levels, exceeding 5.0% in certain crosscuts.
- Methane levels in the center of the intake entry varied from 1.0% to 2.2%.
- Mine personnel promptly took actions to alleviate the hazardous condition.
- The Mine Safety and Health Administration terminated the order on the same day.
- No injuries or illnesses resulted from the temporary condition at the mine.