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Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2022
Asset retirement obligations  
Schedule of asset retirement obligation activity

    

March 31, 

(in thousands)

2022

Beginning balance

$

12,833

Liabilities incurred

 

1,001

Accretion expense

 

459

Liabilities settled

 

(219)

Ending balance

$

14,074