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PLANT, PIPELINE AND EQUIPMENT
9 Months Ended
Sep. 30, 2013
PLANT, PIPELINE AND EQUIPMENT [Abstract]  
PLANT, PIPELINE AND EQUIPMENT
6. 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 

Plant, pipeline, and equipment serve as collateral for a $14.0 million term loan with a domestic bank (see Note 8).

Construction in progress during the first nine months of 2013 included modifications to a tolling unit, expansion of our sales loading rack, construction of a new processing unit, and reworking existing treaters.

Amortization relating to the platinum catalyst which is included in cost of sales was $9,558, $3,184, $28,674 and $9,552 for the three and nine months ended September 30, 2013, and 2012, respectively.