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Asset Retirement Obligations (Tables)
 12 Months Ended
Jun. 30, 2015
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of reconciliation of the beginning and ending asset retirement obligation
The following is a reconciliation of the beginning and ending asset retirement obligation for the years ended June 30, 2015 and 2014:
 
Years Ended
 
2015
 
2014
Asset retirement obligations—beginning of period
$
352,215

 
$
615,551

Liabilities incurred (1)
564,019

 
—

Liabilities settled
(137,604
)
 
(323,665
)
Liabilities sold
(52,526
)
 
(48,273
)
Accretion of discount
34,866

 
41,626

Revisions to previous estimates
12,020

 
66,976

Less: current asset retirement obligations
(57,223
)
 
(146,703
)
Asset retirement obligations—end of period
$
715,767

 
$
205,512


(1)
Primarily attributable to the reversion of our working interest in the Delhi Field in November 2014.