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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2025
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Schedule of changes to Asset Retirement Obligations

The table below (in thousands) reflects the changes to ARO for the periods presented:

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Year Ended December 31, 

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  ​ ​ ​

2025

  ​ ​ ​

2024

Balance, beginning of year

​

$

16,810

​

$

16,589

Accretion

​

 

1,764

​

 

1,628

Change in estimate

​

 

—

​

 

—

Payments

​

 

(727)

​

 

(1,407)

Balance, end of year

​

 

17,847

​

 

16,810

Less current portion

​

 

(2,606)

​

 

(1,853)

Long-term balance, end of year

​

$

15,241

​

$

14,957