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Note 9 - Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Change in Asset Retirement Obligation [Table Text Block]

Balance, December 31, 2024

 $4,013,457 

Additions

  - 

Liabilities settled

  - 

Accretion expense

  163,044 
     

Balance, September 30, 2025

 $4,176,501