Quarterly report pursuant to sections 13 or 15(d)

INVENTORIES (Tables)

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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2012
INVENTORIES [Abstract]  
Inventory
Inventories include the following:

   
September 30, 2012
   
December 31, 2011
 
   
(thousands of dollars)
 
Raw material
  $ 4,144     $ 3,400  
Petrochemical products
    6,181       6,056  
Total inventory
  $ 10,325     $ 9,456