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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2020
INVENTORIES  
Schedule of inventories

March 31, 

December 31, 

2020

    

2019

 

(in thousands)

Coal

$

86,871

$

63,645

Supplies (net of reserve for obsolescence of $5,839 and $5,555, respectively)

 

37,645

 

37,660

Total inventories, net

$

124,516

$

101,305