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Note 2 - Current Liabilities (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
   
2018
   
2017
 
Accounts Payable:
               
Production and related other
  $
1,522,106
    $
1,615,606
 
Other
   
299,150
     
295,507
 
Joint venture partner deposits
   
48,629
     
46,929
 
                 
Total accounts payable
  $
1,869,885
    $
1,958,042
 
                 
Accrued Expenses:
               
Current portion of asset retirement obligations
  $
196,000
    $
775,000
 
Payroll and retirement plan contributions
   
692,083
     
664,384
 
Drilling
   
106,100
     
106,100
 
Other
   
55,100
     
45,600
 
Federal, state and local taxes
   
35,064
     
33,121
 
                 
Total accrued expenses
  $
1,084,347
    $
1,624,205