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Exploration Activities (Tables)
6 Months Ended
Mar. 31, 2016
Exploration Activities [Abstract]  
Summary of costs incurred in the oil property acquisition, exploration and development activities

   March 31, 
2016
  September 30, 2015 
 Acquisition of Properties:      
 Proved $  $ 
 Unproved $82,643  $135,575 
 Exploration costs $6,154  $46,351 
 Development costs $  $