Property, Plant and Equipment

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT:

Property, plant and equipment consists of the following:

	December 31,
	2023		2022
Plant and Equipment	$	3,458,655	$	3,330,755
Coal Properties and Surface Lands	906,343		898,628
Airshafts	492,806		481,090
Mine Development	366,260		366,241
Advance Mining Royalties	328,340		331,863
Total Property, Plant and Equipment	5,552,404		5,408,577
Less: Accumulated Depreciation, Depletion and Amortization	3,649,281		3,448,495
Total Property, Plant and Equipment - Net	$	1,903,123	$	1,960,082

As of December 31, 2023 and 2022, property, plant and equipment includes gross assets under finance leases of $44,622 and $90,516, respectively. Accumulated amortization for finance leases was $31,873 and $54,028 at December 31, 2023 and 2022, respectively. Amortization expense for assets under finance leases approximated $25,400, $24,206 and $27,846 for the years ended December 31, 2023, 2022 and 2021, respectively, and is included in Depreciation, Depletion

and Amortization in the accompanying Consolidated Statements of Income. See Note 14 - Leases for further discussion of finance leases.