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Business Segments | 3 Months Ended
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Mar. 31, 2025
Segment Reporting [Abstract] |
Business Segments | Business Segments Our operating segments are: (i) Coal Mining, (ii) NAMining and (iii) Minerals Management. We determine our reportable segments by first identifying our operating segments, and then by assessing whether any components of these segments constitute a business for which discrete financial information is available and where segment management regularly reviews the operating results of that component. Our President and Chief Executive Officer, who is the Chief Operating Decision Maker (CODM), utilizes Operating profit (loss) to evaluate segment performance and allocate resources. Our CODM considers actual, budgeted and forecasted Operating profit (loss) from operations on a monthly basis for evaluating the performance of each segment and making decisions about allocating capital and other resources to each segment. See Note 1 for a discussion of our reportable segments. All financial statement line items below operating profit (other income including interest expense and interest income, the provision (benefit) for income taxes and net income) are presented and discussed within this Form 10-Q on a consolidated basis. The following table provides segment financial information and a reconciliation of segment results to consolidated results:
|  |  | THREE MONTHS ENDED
|  |  | MARCH 31
|  |  |  |  | 2025 |  | 2024
Revenues |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 19,239 |  |  | $ | 15,545 |
NAMining |  |  |  |  | 31,526 |  |  | 24,483 |
Minerals Management |  |  |  |  | 10,902 |  |  | 10,401 |
Unallocated Items |  |  |  |  | 4,400 |  |  | 3,262 |
Eliminations |  |  |  |  | (496) |  |  | (402) |
Total |  |  |  |  | $ | 65,571 |  |  | $ | 53,289 |
Cost of sales |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 22,570 |  |  | $ | 20,943 |
NAMining |  |  |  |  | 28,378 |  | 21,671
Minerals Management |  |  |  |  | 2,244 |  | 1,364
Unallocated Items |  |  |  |  | 3,237 |  | 2,712
Eliminations |  |  |  |  | (512) |  | (419)
Total |  |  |  |  | $ | 55,917 |  |  | $ | 46,271 |
Earnings of unconsolidated operations |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 14,463 |  |  | $ | 12,007 |
NAMining |  |  |  |  | 969 |  |  | 1,365 |
Minerals Management |  |  |  |  | 554 |  |  | (65) |
Total |  |  |  |  | $ | 15,986 |  |  | $ | 13,307 |
Operating expenses* |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 7,341 |  |  | $ | 7,026 |
NAMining |  |  |  |  | 2,147 |  |  | 1,822 |
Minerals Management |  |  |  |  | 1,305 |  |  | 1,042 |
Unallocated Items |  |  |  |  | 7,165 |  |  | 5,678 |
Total |  |  |  |  | $ | 17,958 |  |  | $ | 15,568 |
Operating profit (loss) |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 3,791 |  |  | $ | (417) |
NAMining |  |  |  |  | 1,970 |  | 2,355
Minerals Management |  |  |  |  | 7,907 |  | 7,930
Unallocated Items |  |  |  |  | (6,002) |  | (5,128)
Eliminations |  |  |  |  | 16 |  | 17
Total |  |  |  |  | $ | 7,682 |  |  | $ | 4,757 |
*Operating expenses consist of Selling, general and administrative expenses, Amortization of intangible assets and (Gain) loss on sale of assets.
|  |  | THREE MONTHS ENDED
|  |  | MARCH 31
|  |  |  |  | 2025 |  | 2024
Expenditures for property, plant and equipment and acquisition of mineral interests |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 617 |  |  | $ | 1,794 |
NAMining |  |  |  |  | 6,754 |  |  | 5,818 |
Minerals Management |  |  |  |  | 807 |  |  | 136 |
Unallocated Items |  |  |  |  | 630 |  |  | 6,735 |
Total |  |  |  |  | $ | 8,808 |  |  | $ | 14,483 |
Depreciation, depletion and amortization |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 2,018 |  |  | $ | 2,214 |
NAMining |  |  |  |  | 2,702 |  |  | 2,256 |
Minerals Management |  |  |  |  | 1,908 |  |  | 993 |
Unallocated Items |  |  |  |  | 165 |  |  | 229 |
Total |  |  |  |  | $ | 6,793 |  |  | $ | 5,692 |
|  |  |  |  | March 31 2025 |  | December 31 2024
Total assets |  |  |  |  |  |  |
Coal Mining |  |  |  |  | $ | 116,649 |  |  | $ | 125,301 |
NAMining |  |  |  |  | 210,990 |  |  | 204,889 |
Minerals Management |  |  |  |  | 99,702 |  |  | 99,905 |
Unallocated Items** |  |  |  |  | 206,846 |  |  | 201,592 |
Total |  |  |  |  | $ | 634,187 |  |  | $ | 631,687 |
**Unallocated Items consist primarily of Cash and cash equivalents, assets of growth businesses, Deferred income taxes and Investments in unconsolidated subsidiaries.

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- Definition The entire disclosure for reporting segments including data and tables. 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