Business Segments (Tables)

9 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following table provides segment financial information and a reconciliation of segment results to consolidated results:

	THREE MONTHS ENDED				NINE MONTHS ENDED
	SEPTEMBER 30				SEPTEMBER 30
	2025		2024		2025		2024
Revenues
Utility Coal Mining	$	19,654	$	17,706	$	67,519	$	48,247
Contract Mining	45,611		32,326		107,860		84,729
Minerals and Royalties	9,313		8,849		27,483		24,843
Unallocated Items	2,958		3,745		9,581		11,573
Eliminations	(922)		(970)		(2,023)		(2,102)
Total	$	76,614	$	61,656	$	210,420	$	167,290
Cost of sales
Utility Coal Mining	$	21,511	$	18,054	$	74,408	$	55,135
Contract Mining	42,395		31,379		99,432		77,304
Minerals and Royalties	1,121		1,286		4,351		4,151
Unallocated Items	2,502		4,622		7,790		11,501
Eliminations	(886)		(929)		(2,006)		(2,081)
Total	$	66,643	$	54,412	$	183,975	$	146,010
Earnings of unconsolidated operations
Utility Coal Mining	$	14,311	$	13,821	$	40,430	$	37,834
Contract Mining	1,074		1,122		3,275		3,935
Minerals and Royalties	1,111		213		1,916		286
Unallocated Items	(2)		(1)		(3)		(1)
Total	$	16,494	$	15,155	$	45,618	$	42,054
Operating expenses (income)*
Utility Coal Mining	$	7,467	$	7,147	$	23,541	$	22,270
Contract Mining	2,361		2,543		6,794		6,394
Minerals and Royalties	1,335		1,588		3,968		(731)
Unallocated Items	8,525		5,034		23,352		17,191
Total	$	19,688	$	16,312	$	57,655	$	45,124
Operating profit (loss)
Utility Coal Mining	$	4,987	$	19,938	$	10,000	$	22,288
Contract Mining	1,929		(474)		4,909		4,966
Minerals and Royalties	7,968		6,188		21,080		21,709
Unallocated Items	(8,071)		(5,912)		(21,564)		(17,120)
Eliminations	(36)		(41)		(17)		(21)
Total	$	6,777	$	19,699	$	14,408	$	31,822

*Operating expenses (income) consist of Selling, general and administrative expenses, Amortization of intangible assets and Gain on sale of assets.

	THREE MONTHS ENDED				NINE MONTHS ENDED
	SEPTEMBER 30				SEPTEMBER 30
	2025		2024		2025		2024
Expenditures for property, plant and equipment and acquisition of mineral interests
Utility Coal Mining	$	4,550	$	3,338	$	6,600	$	7,045
Contract Mining	10,697		3,170		18,483		14,156
Minerals and Royalties	4,252		708		5,059		854
Unallocated Items	2,893		1,080		4,200		8,642
Total	$	22,392	$	8,296	$	34,342	$	30,697
Depreciation, depletion and amortization
Utility Coal Mining	$	2,135	$	2,154	$	6,285	$	7,264
Contract Mining	2,777		2,672		8,396		7,362
Minerals and Royalties	935		1,092		3,688		3,408
Unallocated Items	347		333		709		916
Total	$	6,194	$	6,251	$	19,078	$	18,950
					SEPTEMBER 30 2025		DECEMBER 31 2024
Total assets
Utility Coal Mining					$	113,276	$	125,301
Contract Mining					203,325		204,889
Minerals and Royalties					99,937		99,905
Unallocated Items**					221,095		201,592
Total					$	637,633	$	631,687

**Unallocated Items consist primarily of Cash and cash equivalents, assets of growth businesses, Deferred income taxes and Investments in unconsolidated subsidiaries.