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Note 10 - Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Asset Retirement Obligations [Table Text Block]
   

September 30, 2024

   

December 31, 2023

 
   

(in thousands)

 

Balance, beginning of year

  $ 18,490     $ 15,442  

Acquired or incurred

    -       11  

Cost and life revisions

    (150 )     2,494  

Plugged

    (105 )     (215 )

Sold

    (1,425 )     (458 )

Accretion

    1,181       1,216  

Balance, end of period

  $ 17,991     $ 18,490  
                 

Asset retirement obligations - current

  $ 1,000     $ 1,273  

Asset retirement obligations - noncurrent

    16,991       17,217  

Balance, end of period

  $ 17,991     $ 18,490