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INVENTORIES
6 Months Ended
Jun. 30, 2014
INVENTORIES [Abstract]  
INVENTORIES
4. INVENTORIES

Inventories include the following:

   
June 30, 2014
  
December 31, 2013
 
   
(thousands of dollars)
 
Raw material
 $3,059  $2,403 
Petrochemical products
  8,643   9,660 
Total inventory
 $11,702  $12,063 

Inventories are recorded at the lower of cost, determined on the last-in, first-out method (LIFO), or market.  At June 30, 2014, and December 31, 2013, current cost exceeded LIFO value by approximately $2.4 million and $1.5 million, respectively.

Inventories serving as collateral for the Company’s line of credit with a domestic bank were $4.4 million and $4.9 million at June 30, 2014, and December 31, 2013, respectively (see Note 7).

Inventory included products in transit valued at approximately $5.8 million and $4.4 million at June 30, 2014, and December 31, 2013, respectively.