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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2022
INVENTORIES  
Schedule of inventories

    

March 31, 

December 31, 

2022

    

2021

 

(in thousands)

Coal

$

56,084

$

24,845

Supplies (net of reserve for obsolescence of $5,571 and $5,554, respectively)

 

39,661

 

35,457

Total inventories, net

$

95,745

$

60,302