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v3.24.3

Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 61,656 | $ 46,546 | $ 167,290 | $ 158,037
Cost of sales | 54,412 | 48,720 | 146,010 | 150,447
Earnings of unconsolidated operations | 15,155 | 12,754 | 42,054 | 37,662
Operating expenses (income) | 16,312 | 16,847 | 45,124 | 47,955
Operating profit (loss) | 19,699 | (6,267) | 31,822 | (2,703)
Expenditures for property, plant and equipment and acquisition of mineral interests | 8,296 | 23,759 | 30,697 | 37,894
Depreciation, depletion and amortization | 6,251 | 7,320 | 18,950 | 21,429
Operating segments | Coal Mining |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 17,706 | 18,665 | 48,247 | 65,661
Cost of sales | 18,054 | 26,819 | 55,135 | 85,966
Earnings of unconsolidated operations | 13,821 | 11,259 | 37,834 | 33,687
Operating expenses (income) | 7,147 | 7,802 | 22,270 | 22,441
Operating profit (loss) | 19,938 | (4,697) | 22,288 | (9,059)
Expenditures for property, plant and equipment and acquisition of mineral interests | 3,338 | 1,469 | 7,045 | 5,187
Depreciation, depletion and amortization | 2,154 | 4,336 | 7,264 | 12,924
Operating segments | NAMining |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 32,326 | 21,722 | 84,729 | 64,071
Cost of sales | 31,379 | 20,286 | 77,304 | 58,411
Earnings of unconsolidated operations | 1,122 | 1,495 | 3,935 | 3,975
Operating expenses (income) | 2,543 | 2,065 | 6,394 | 5,725
Operating profit (loss) | (474) | 866 | 4,966 | 3,910
Expenditures for property, plant and equipment and acquisition of mineral interests | 3,170 | 21,450 | 14,156 | 30,380
Depreciation, depletion and amortization | 2,672 | 2,058 | 7,362 | 5,799
Operating segments | Minerals Management |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 8,849 | 5,747 | 24,843 | 23,203
Cost of sales | 1,286 | 1,064 | 4,151 | 3,026
Earnings of unconsolidated operations | 213 | 0 | 286 | 0
Operating expenses (income) | 1,588 | 1,073 | (731) | 3,234
Operating profit (loss) | 6,188 | 3,610 | 21,709 | 16,943
Expenditures for property, plant and equipment and acquisition of mineral interests | 708 | 776 | 854 | 1,758
Depreciation, depletion and amortization | 1,092 | 768 | 3,408 | 2,328
Unallocated Items |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 3,745 | 966 | 11,573 | 6,785
Cost of sales | 4,622 | 1,086 | 11,501 | 4,675
Earnings of unconsolidated operations | (1) | 0 | (1) | 0
Operating expenses (income) | 5,034 | 5,907 | 17,191 | 16,555
Operating profit (loss) | (5,912) | (6,027) | (17,120) | (14,445)
Expenditures for property, plant and equipment and acquisition of mineral interests | 1,080 | 64 | 8,642 | 569
Depreciation, depletion and amortization | 333 | 158 | 916 | 378
Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | (970) | (554) | (2,102) | (1,683)
Cost of sales | (929) | (535) | (2,081) | (1,631)
Operating profit (loss) | $ (41) | $ (19) | $ (21) | $ (52)

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