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v3.25.1

REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) | 3 Months Ended
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Mar. 31, 2025
REVENUE FROM CONTRACTS WITH CUSTOMERS |
Schedule of disaggregation of revenues by type | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Coal Operations | ​ | Royalties | ​ | Other, | ​ | ​ | ​ | ​
​ | ​ | Illinois |  | ​ |  | ​ | ​ | ​ |  | Corporate and |  | ​ | ​ | ​
​ |  | Basin |  | Appalachia |  | Oil & Gas |  | Coal |  | Elimination |  | Consolidated | ​
​ | ​ | (in thousands) | ​
Three Months Ended March 31, 2025 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Coal sales | ​ | $ | 333,234 | ​ | $ | 135,277 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 468,511 | ​
Oil & gas royalties | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 36,084 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 36,084 | ​
Coal royalties | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 15,795 | ​ | ​ | (15,795) | ​ | ​ | — | ​
Transportation revenues | ​ | ​ | 6,863 | ​ | ​ | 3,337 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10,200 | ​
Other revenues | ​ | ​ | 2,898 | ​ | ​ | 882 | ​ | ​ | 829 | ​ | ​ | — | ​ | ​ | 21,064 | ​ | ​ | 25,673 | ​
Total revenues | ​ | $ | 342,995 | ​ | $ | 139,496 | ​ | $ | 36,913 | ​ | $ | 15,795 | ​ | $ | 5,269 | ​ | $ | 540,468 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Three Months Ended March 31, 2024 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Coal sales | ​ | $ | 370,630 | ​ | $ | 191,249 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 561,879 | ​
Oil & gas royalties | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 37,030 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 37,030 | ​
Coal royalties | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 18,702 | ​ | ​ | (18,702) | ​ | ​ | — | ​
Transportation revenues | ​ | ​ | 24,476 | ​ | ​ | 6,277 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 30,753 | ​
Other revenues | ​ | ​ | 2,735 | ​ | ​ | 488 | ​ | ​ | 315 | ​ | ​ | 6 | ​ | ​ | 18,491 | ​ | ​ | 22,035 | ​
Total revenues | ​ | $ | 397,841 | ​ | $ | 198,014 | ​ | $ | 37,345 | ​ | $ | 18,708 | ​ | $ | (211) | ​ | $ | 651,697 | ​
Schedule of trade receivables | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended | ​
​ | ​ | March 31, | ​
​ | ​ | 2025 |  | 2024 |
​ | ​ | (in thousands) | ​
Beginning balance | ​ | $ | 166,829 | ​ | $ | 282,622 |
Ending balance | ​ | $ | 177,467 | ​ | $ | 272,191 | ​
Schedule of current coal supply contracts | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2028 and | ​ | ​
​ |  | 2025 |  | 2026 |  | 2027 |  | Thereafter |  | Total
​ | ​ | (in thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Illinois Basin Coal Operations coal revenues | ​ | $ | 811,427 | ​ | $ | 718,227 | ​ | $ | 468,043 | ​ | $ | 653,069 | ​ | $ | 2,650,766
Appalachia Coal Operations coal revenues | ​ | ​ | 511,400 | ​ | ​ | 130,101 | ​ | ​ | 30,105 | ​ | ​ | — | ​ | ​ | 671,606
Total coal revenues (1) | ​ | $ | 1,322,827 | ​ | $ | 848,328 | ​ | $ | 498,148 | ​ | $ | 653,069 | ​ | $ | 3,322,372
(1) Coal revenues generally consists of consolidated revenues excluding our Oil & Gas Royalties segment as well as intercompany revenues from our Coal Royalties segment.

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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