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Oil and Gas Properties (Tables)
12 Months Ended
Dec. 31, 2018
Oil and Gas Property [Abstract]  
Schedule of Evaluated Oil and Gas Properties Subject to Amortization

Evaluated oil and gas properties subject to amortization at December 31, 2018 included the following:

 

    United States     South America     Total  
                   
Evaluated properties being amortized   $ 10,943,176     $ 49,454,702     $ 60,397,878  
Accumulated depreciation, depletion, amortization and impairment     (6,538,196 )     (49,454,702 )     (55,992,898 )
Net capitalized costs   $ 4,404,980     $     $ 4,404,980  

 

Evaluated oil and gas properties subject to amortization at December 31, 2017 included the following:

 

    United States     South America     Total  
                   
Evaluated properties being amortized   $ 10,684,824     $ 49,454,702     $ 60,139,526  
Accumulated depreciation, depletion, amortization and impairment     (6,180,374 )     (49,454,702 )     (55,635,076 )
Net capitalized costs   $ 4,504,450     $     $ 4,504,450  

Schedule of Unevaluated Oil and Gas Properties Not Subject to Amortization

Unevaluated oil and gas properties not subject to amortization at December 31, 2018 included the following:

 

    United States     South America     Total  
                   
Leasehold acquisition costs   $     $ 141,318     $ 141,318  
Geological, geophysical, screening and evaluation costs     135,329       2,179,852       2,315,181  
Total   $ 135,329     $ 2,321,170     $ 2,456,499  

 

Unevaluated oil and gas properties not subject to amortization at December 31, 2017 included the following:

 

    United States     South America     Total  
                   
Leasehold acquisition costs   $     $ 141,318     $ 141,318  
Geological, geophysical, screening and evaluation costs           2,168,023       2,168,023  
Total   $     $ 2,309,341     $ 2,309,341