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Inventories (Tables)
9 Months Ended
Sep. 30, 2012
Inventory Disclosure [Abstract]  
Schedule Of Major Components Of Inventories
 
September 30,
2012
 
December 31,
2011
Petroleum products
$
41,076

 
$
70,769

Crude oil
12,014

 
11,701

Caustic soda
6,829

 
11,312

NaHS
7,376

 
7,337

Other
3

 
5

Total
$
67,298

 
$
101,124