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Note 10 - Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Schedule of Asset Retirement Obligations [Table Text Block]
   

March 31, 2025

   

December 31, 2024

 
   

(in thousands)

 

Balance, beginning of year

  $ 14,083     $ 18,490  

Acquired or incurred

    18       2  

Cost and life revisions

    -       (150 )

Plugged

    (134 )     (374 )

Sold

    (114 )     (5,435 )

Accretion

    286       1,550  

Balance, end of period

  $ 14,139     $ 14,083  
                 

Asset retirement obligations - current

  $ 1,000     $ 1,000  

Asset retirement obligations - noncurrent

    13,139       13,083  

Balance, end of period

  $ 14,139     $ 14,083