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Inventories
6 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Inventories
Inventories
The major components of inventories were as follows:
 
June 30,
2016
 
December 31,
2015
Petroleum products
$
6,881

 
$
14,235

Crude oil
60,855

 
22,815

Caustic soda
3,388

 
3,964

NaHS
7,605

 
2,755

Other
9

 
6

Total
$
78,738

 
$
43,775


Inventories are valued at the lower of cost or market. The market value of inventories were not below recorded cost as of June 30, 2016 and were below recorded costs by approximately $0.9 million as of December 31, 2015; therefore we reduced the value of inventory in our Condensed Consolidated Financial Statements for this difference in 2015.