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CONCENTRATIONS OF CREDIT RISK (Details) (USD $)
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Oil and natural gas
Concentration of credit risk
Accounts receivable
Individually significant customers
Sep. 30, 2012
Oil and natural gas
Concentration of credit risk
Accounts receivable
Shell Trading Canada
Sep. 30, 2012
Oil and natural gas
Concentration of credit risk
Accounts receivable
Entegral Energy Marketing Inc.
Sep. 30, 2012
Oil and natural gas
Concentration of credit risk
Accounts receivable
ProGas Limited
Sep. 30, 2012
Contract drilling
Concentration of credit risk
Accounts receivable
Governmental Agencies
Concentration of credit risk              
Concentration risk (as a percent)       54.00% 15.00% 11.00%  
Accounts receivables $ 3,600,000 $ 5,760,000 $ 1,266,000       $ 150,000