NACCO Industries, Inc. (NC)
NACCO Industries, Inc., together with its subsidiaries, engages in the natural resources business. The company operates through three segments: Coal Mining, North American Mining, and Minerals Management.
CONSOL Energy Inc. (CEIX)
CONSOL Energy Inc. produces and exports bituminous coal in the United States. It operates through Pennsylvania Mining Complex and CONSOL Marine Terminal segment.
Arch Resources, Inc. (ARCH)
Arch Resources, Inc. produces and sells metallurgical products. As of December 31, 2022, the company operated seven active mines.