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Summary of Significant Accounting Policies (Details) (USD $)
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Summary of Significant Accounting Policies    
Allowance for doubtful accounts $ 0 $ 0
Earnings (loss) per share    
Number of potential dilutive common shares included in the computation of diluted EPS when a loss from continuing operation exists 0  
Low end of the range
   
Other Property and Equipment    
Expected lives of the individual assets or group of assets 3 years  
High end of the range
   
Other Property and Equipment    
Expected lives of the individual assets or group of assets 7 years  
Oil and natural gas properties
   
Limitation on Capitalized Costs    
Discount rate for present value (as a percent) 10.00%  
Period considered for computing unweighted arithmetic average of oil and natural gas prices 12 months