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OTHER LONG-TERM ASSETS (IN THOUSANDS)
12 Months Ended
Dec. 31, 2025
OTHER LONG-TERM ASSETS (IN THOUSANDS)  
OTHER LONG-TERM ASSETS (IN THOUSANDS)

(3)     OTHER LONG-TERM ASSETS (IN THOUSANDS)

  ​ ​ ​

December 31, 

  ​ ​ ​

2025

  ​ ​ ​

2024

Advanced coal royalties

$

4,234

$

3,906

Other

 

7

 

45

Total other assets

$

4,241

$

3,951