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Note 10 - Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Change in Asset Retirement Obligation [Table Text Block]

Balance, December 31, 2022

 $3,569,580 

Additions

  - 

Liabilities settled

  - 

Accretion expense

  53,823 
     

Balance, March 31, 2023

 $3,623,403