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Inventories (Tables)
12 Months Ended
Dec. 31, 2012
Inventories  
Components of inventory

Inventories consist of the following (in thousands):

 
  December 31,
2012
  December 31,
2011
 

NGLs

  $ 14,763   $ 32,352  

Spare parts, materials and supplies

    9,870     8,654  
           

Total inventories

  $ 24,633   $ 41,006