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v3.23.1

Note 15 - Segments of Business - Summary of Reportable Segments Operations (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Revenue | $ 188,334 | $ 58,907 |
Operating Expense | 29,233 | (8,677) |
Depreciation | 17,976 | 9,531 |
Amount attributable to assets acquired | 616,627 | 357,876 | $ 630,554
Capital Expenditures | 13,482 | 9,082 |
Coal Operations [Member] |  |  |
Revenue | 95,273 | 58,337 |
Operating Expense | 13,088 | (7,446) |
Depreciation | 13,275 | 9,496 |
Amount attributable to assets acquired | 391,248 | 350,076 |
Capital Expenditures | 12,639 | 9,082 |
Electric Operations [Member] |  |  |
Revenue | 92,494 | 0 |
Operating Expense | 18,705 | 0 |
Depreciation | 4,675 | 0 |
Amount attributable to assets acquired | 218,132 | 0 |
Capital Expenditures | 843 | 0 |
Corporate and Other [Member] |  |  |
Revenue | 567 | 570 |
Operating Expense | (2,560) | (1,231) |
Depreciation | 26 | 35 |
Amount attributable to assets acquired | 7,247 | 7,800 |
Capital Expenditures | $ 0 | $ 0 |

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