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Summary Of Significant Accounting Policies (Summary Of Unobservable Inputs For Level 3 Fair Value Measurements) (Details)
12 Months Ended
Sep. 30, 2016
USD ($)
Oil Costless Collars [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Unobservable Input Oil price volatility curve
Weighted Average 15.06%
Fair Value Assets (Liabilities) $ (99,005)
Oil Costless Collars [Member] | Minimum [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Range 0.00%
Oil Costless Collars [Member] | Maximum [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Range 25.87%
Natural Gas Costless Collars [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Unobservable Input Natural gas price volatility curve
Weighted Average 22.50%
Fair Value Assets (Liabilities) $ (217,653)
Natural Gas Costless Collars [Member] | Minimum [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Range 0.00%
Natural Gas Costless Collars [Member] | Maximum [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Range 32.76%