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Inventories, net
6 Months Ended
Jun. 30, 2026
Inventory Disclosure [Abstract]  
Inventories, net Inventories, net
Inventories, net consisted of the following: 
June 30, 2026December 31, 2025
Raw coal$51,456 $41,665 
Saleable coal136,335 81,919 
Materials, supplies and other, net
74,644 69,416 
Total inventories, net$262,435 $193,000