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Asset Retirement Obligations (Details) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Jun. 30, 2012
Reconciliation of the beginning and ending asset retirement obligation          
Asset retirement obligations - beginning of period     $ 968,677 $ 859,586 $ 859,586
Liabilities sold     (170,433)    
Liabilities incurred     3,126   175,943
Liabilities settled     (38,077)   (61,936)
Accretion of discount 17,232 20,124 56,090 56,712 77,505
Revision of previous estimates     5,432   (82,421)
Asset retirement obligations - end of period $ 824,815   $ 824,815   $ 968,677