Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment consists of the following:

	December 31,
	2022		2021
Plant and Equipment	$	3,330,755	$	3,209,232
Coal Properties and Surface Lands	898,628		881,551
Airshafts	481,090		473,866
Mine Development	366,241		357,479
Advance Mining Royalties	331,863		328,677
Total Property, Plant and Equipment	5,408,577		5,250,805
Less: Accumulated Depreciation, Depletion and Amortization	3,448,495		3,272,255
Total Property, Plant and Equipment - Net	$	1,960,082	$	1,978,550