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Inventories (Tables)
6 Months Ended
Jun. 30, 2012
Inventory Disclosure [Abstract]  
Schedule Of Major Components Of Inventories
 
June 30,
2012
 
December 31,
2011
Petroleum products
$
53,962

 
$
70,769

Crude oil
6,510

 
11,701

Caustic soda
8,527

 
11,312

NaHS
3,973

 
7,337

Other
6

 
5

Total
$
72,978

 
$
101,124