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Exploration Activities (Tables)
9 Months Ended
Jun. 30, 2016
Exploration Activities [Abstract]  
Summary of costs incurred in the oil property acquisition, exploration and development activities
   June 30, 
2016
  September 30, 2015 
        
 Acquisition of Properties:        
 Proved $  $ 
 Unproved $91,542  $135,575 
 Exploration costs $20,463  $46,351 
 Development costs $  $