| 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 June 30, 2026 | | | | | | | | | | | | | | | | | | | | | | Coal sales | | $ | 330,272 | | $ | 139,272 | | $ | — | | $ | — | | $ | — | | $ | 469,544 | | Oil & gas royalties | | | — | | | — | | | 46,293 | | | — | | | — | | | 46,293 | | Coal royalties | | | — | | | — | | | — | | | 22,723 | | | (22,723) | | | — | | Transportation revenues | | | 6,083 | | | 1,427 | | | — | | | — | | | — | | | 7,510 | | Other revenues | | | 3,117 | | | 11,198 | | | 234 | | | — | | | 13,664 | | | 28,213 | | Total revenues | | $ | 339,472 | | $ | 151,897 | | $ | 46,527 | | $ | 22,723 | | $ | (9,059) | | $ | 551,560 | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, 2025 | | | | | | | | | | | | | | | | | | | | | | Coal sales | | $ | 343,841 | | $ | 141,628 | | $ | — | | $ | — | | $ | — | | $ | 485,469 | | Oil & gas royalties | | | — | | | — | | | 35,473 | | | — | | | — | | | 35,473 | | Coal royalties | | | — | | | — | | | — | | | 17,612 | | | (17,612) | | | — | | Transportation revenues | | | 4,829 | | | 3,729 | | | — | | | — | | | — | | | 8,558 | | Other revenues | | | 1,577 | | | 626 | | | 28 | | | — | | | 15,732 | | | 17,963 | | Total revenues | | $ | 350,247 | | $ | 145,983 | | $ | 35,501 | | $ | 17,612 | | $ | (1,880) | | $ | 547,463 | | | | | | | | | | | | | | | | | | | | | | Six Months Ended June 30, 2026 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Coal sales | | $ | 640,027 | | $ | 272,799 | | $ | — | | $ | — | | $ | — | | $ | 912,826 | | Oil & gas royalties | | | — | | | — | | | 87,634 | | | — | | | — | | | 87,634 | | Coal royalties | | | — | | | — | | | — | | | 41,823 | | | (41,823) | | | — | | Transportation revenues | | | 12,260 | | | 3,893 | | | — | | | — | | | — | | | 16,153 | | Other revenues | | | 6,147 | | | 15,308 | | | 677 | | | 291 | | | 28,541 | | | 50,964 | | Total revenues | | $ | 658,434 | | $ | 292,000 | | $ | 88,311 | | $ | 42,114 | | $ | (13,282) | | $ | 1,067,577 | | | | | | | | | | | | | | | | | | | | | | Six Months Ended June 30, 2025 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Coal sales | | $ | 677,075 | | $ | 276,905 | | $ | — | | $ | — | | $ | — | | $ | 953,980 | | Oil & gas royalties | | | — | | | — | | | 71,557 | | | — | | | — | | | 71,557 | | Coal royalties | | | — | | | — | | | — | | | 33,407 | | | (33,407) | | | — | | Transportation revenues | | | 11,692 | | | 7,066 | | | — | | | — | | | — | | | 18,758 | | Other revenues | | | 4,475 | | | 1,508 | | | 857 | | | — | | | 36,796 | | | 43,636 | | Total revenues | | $ | 693,242 | | $ | 285,479 | | $ | 72,414 | | $ | 33,407 | | $ | 3,389 | | $ | 1,087,931 | |
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| Schedule of current coal supply contracts |
| | | | | | | | | | | | | | | | | | | | | | | | | | | 2029 and | | | | | 2026 | | 2027 | | 2028 | | Thereafter | | Total | | | | (in thousands) | | | | | | | | | | | | | | | | | Illinois Basin Coal Operations coal revenues | | $ | 713,153 | | $ | 1,008,907 | | $ | 549,623 | | $ | 405,380 | | $ | 2,677,063 | Appalachia Coal Operations coal revenues | | | 250,072 | | | 380,968 | | | 289,856 | | | 37,800 | | | 958,696 | Total coal revenues | | $ | 963,225 | | $ | 1,389,875 | | $ | 839,479 | | $ | 443,180 | | $ | 3,635,759 |
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