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Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 2012
Fair Value Measurements [Abstract]  
Fair vale measurements
The following table summarizes, by major security type, the fair value and any unrealized gain of our available for sale securities.  The unrealized gain is recorded on the condensed consolidated balance sheets as other comprehensive income, a component of shareholders' equity.

 
(In thousands)
 
 
 
Fair Value Measurements at June 30, 2012 Using
 
 
June 30,
 
Quoted Prices in
Active Markets
for Identical
Assets
 
Significant Other
Observable Inputs
 
Significant
Unobservable
Inputs
 
Description
2012
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
 
 
 
 
 
Commodity risk management assets
 
$
1,112
 
 
$
--
 
 
$
1,112
 
 
$
--
 
Available for sale securities
 
 
221
 
 
 
221
 
 
 
--
 
 
 
--
 
Assets held for sale
 
 
16,180
 
 
 
--
 
 
 
--
 
 
 
16,180
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total assets
 
$
17,513
 
 
$
221
 
 
$
1,112
 
 
$
16,180
 
 
The following table summarizes the change in the fair value of our Level 3 Fair Value measurements for the six months ended June 30, 2012.

 
Change in Level 3 Fair Value Measurements
 
 
December 31,
 
Revision of Value
 
June 30
 
Description
2011
 
 
2012
 
 
 
 
 
Assets held for sale
 
$
18,132
 
 
$
(1,952
)
 
$
16,180