Arch Resources, Inc. was a United States producer of metallurgical and thermal coal from mines including Leer, Leer South, West Elk and Black Thunder. Its merger of equals with CONSOL Energy became effective on January 14, 2025, Arch became a wholly owned subsidiary, and the combined public company began trading as Core Natural Resources under ticker CNR. Listing outcome: acquired by Core Natural Resources, Inc.
- Country
- United States
- Commodity
- Coal
- Stage
- Producer