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PLANT, PIPELINE AND EQUIPMENT (Tables)
9 Months Ended
Sep. 30, 2013
PLANT, PIPELINE AND EQUIPMENT [Abstract]  
Plant, Pipeline and Equipment
Plant, pipeline and equipment consisted of the following:

   
September 30, 2013
  
December 31, 2012
 
   
(thousands of dollars)
 
Platinum catalyst
 $1,612  $1,612 
Land
  1,577   1,577 
Plant, pipeline and equipment
  66,117   64,356 
Construction in progress
  4,329   937 
Total plant, pipeline and equipment
  73,635   68,482 
  Less accumulated depreciation and amortization
  (31,764)  (28,062)
Net plant, pipeline and equipment
 $41,871  $40,420