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Related Party Transactions (Tables)
 9 Months Ended
Sep. 30, 2012
Related Party Transactions [Abstract]  
Related party transactions
We participate in ownership of properties operated by Chesapeake, and we received revenues and incurred joint interest billings on these properties as follows: 
 
Three months ended September 30,
 
Nine months ended September 30,
 
2012
 
2011
 
2012
 
2011
Revenues
$
831

 
$
1,366

 
$
2,600

 
$
3,828

Joint interest billings
$
(828
)
 
$
(346
)
 
$
(4,295
)
 
$
(882
)
In addition, Chesapeake participates in ownership of properties operated by us, and we paid revenues and recorded joint interest billings to Chesapeake on these properties as follows:
 
Three months ended September 30,
 
Nine months ended September 30,
 
2012
 
2011
 
2012
 
2011
Revenues
$
(1,062
)
 
$
(833
)
 
$
(2,521
)
 
$
(2,252
)
Joint interest billings
$
3,093

 
$
608

 
$
7,737

 
$
3,667

Amounts receivable from and payable to Chesapeake at September 30, 2012 and December 31, 2011 were as follows: 
 
September 30, 2012
 
December 31, 2011
Amounts receivable from Chesapeake
$
1,561

 
$
223

Amounts payable to Chesapeake
$
773

 
$
207