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Asset Retirement Obligations (Tables)
9 Months Ended
Mar. 31, 2013
Asset Retirement Obligations  
Schedule of reconciliation of the beginning and ending asset retirement obligation

 

 

 

March 31,
2012

 

June 30,
2012

 

 

 

 

 

 

 

Asset retirement obligations — beginning of period

 

$

968,677

 

$

859,586

 

Liabilities sold

 

(170,433

)

 

Liabilities incurred

 

3,126

 

175,943

 

Liabilities settled

 

(38,077

)

(61,936

)

Accretion of discount

 

56,090

 

77,505

 

Revision of previous estimates

 

5,432

 

(82,421

)

Asset retirement obligations — end of period

 

$

824,815

 

$

968,677