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INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2021
INVENTORIES  
Schedule of inventories

June 30, 

December 31, 

2021

    

2020

 

(in thousands)

Coal

$

40,091

$

19,756

Supplies (net of reserve for obsolescence of $5,548 and $5,547, respectively)

 

34,414

 

36,651

Total inventories, net

$

74,505

$

56,407