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Inventories (Tables)
12 Months Ended
Dec. 31, 2023
Inventories  
Inventories

    

December 31, 

    

December 31, 

 

2023

 

2022

(In thousands)

Coal

$

99,174

$

96,954

Repair parts and supplies

 

145,087

 

126,061

$

244,261

$

223,015