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Asset Retirement Obligations (Tables)
3 Months Ended
Sep. 30, 2015
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of reconciliations of the beginning and ending asset retirement obligation balances
The following is a
reconciliation of the beginning and ending asset retirement obligations for the three months ended September 30, 2015, and for the year ended June 30, 2015:
 
Three Months Ended 
 September 30, 2015
 
Year Ended
June 30,
2015
Asset retirement obligations — beginning of period
$
772,990

 
$
352,215

Liabilities incurred (a)

 
564,019

Liabilities settled

 
(137,604
)
Liabilities sold

 
(52,526
)
Accretion of discount
11,343

 
34,866

Revision of previous estimates

 
12,020

Asset retirement obligations — end of period
$
784,333

 
$
772,990

Less current portion in accrued liabilities
(57,223
)
 
(57,223
)
Long-term portion of asset retirement obligations
727,110

 
715,767