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Inventories (Tables)
6 Months Ended
Jun. 30, 2011
Inventories  
Components of inventory

 

 

 

 

June 30, 2011

 

December 31, 2010

 

Natural gas liquids

 

$

22,456

 

$

15,930

 

Spare parts

 

8,940

 

7,502

 

Total inventories

 

$

31,396

 

$

23,432