XML 32 R30.htm IDEA: XBRL DOCUMENT v2.4.1.9
Asset Retirement Obligations (Tables)
9 Months Ended
Mar. 31, 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 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