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Inventories
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Inventories

3. Inventories
The major components of inventories were as follows:
 
March 31,
2014
 
December 31,
2013
Petroleum products
$
74,313

 
$
71,373

Crude oil
14,621

 
5,380

Caustic soda
4,226

 
2,679

NaHS
3,852

 
5,845

Other
17

 
53

Total
$
97,029

 
$
85,330


Inventories are valued at the lower of cost or market. The market value of inventories was below recorded costs by approximately $0.2 million at March 31, 2014, therefore we reduced the value of inventory in our Unaudited Condensed Consolidated Financial Statements for this difference. At December 31, 2013, market values of our inventories exceeded recorded costs.