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Asset Retirement Obligations (Tables)
12 Months Ended
Jun. 30, 2012
Asset Retirement Obligations  
Schedule of reconciliation of the beginning and ending asset retirement obligation

 

 

 

Year Ended

 

 

 

2012

 

2011

 

Asset retirement obligations — beginning of period

 

$

859,586

 

$

811,635

 

Liabilities incurred

 

175,943

 

15,000

 

Liabilities settled

 

(61,936

)

(1,847

)

Accretion

 

77,505

 

59,913

 

Revisions to previous estimates

 

(82,421

)

(25,115

)

Asset retirement obligations — end of period

 

$

968,677

 

$

859,586