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Asset Retirement Obligations
9 Months Ended
Mar. 31, 2015
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations
Asset Retirement Obligations
 
Our asset retirement obligations represent the estimated present value of the amount we will incur to plug, abandon and
remediate our producing properties at the end of their productive lives in accordance with applicable laws. The following is a
reconciliation of the beginning and ending asset retirement obligations for the nine months ended March 31, 2015, and for the year ended June 30, 2014:
 
Nine Months Ended 
 March 31, 2015
 
Year Ended
June 30,
2014
Asset retirement obligations — beginning of period
$
352,215

 
$
615,551

Liabilities sold
(52,526
)
 
(48,273
)
Liabilities incurred (a)
564,019

 

Liabilities settled
(137,604
)
 
(323,665
)
Accretion of discount
23,697

 
41,626

Revision of previous estimates
9,670

 
66,976

Less obligations due within one year
(10,219
)
 
(146,703
)
Asset retirement obligations — end of period
$
749,252

 
$
205,512


 
(a) Liabilities incurred during the period relate to our share of the the estimated abandonment costs of the wells and facilities in the Delhi field subsequent to the reversion of our working interest.