Inventories (Tables)

12 Months Ended

Dec. 31, 2011

Inventories [Abstract]

Schedule Of Major Components Of Inventories

	December 31,
	2011		2010
Crude oil	$	11,701	$	6,128
Petroleum products		70,769		38,588
Caustic soda		11,312		6,309
NaHS		7,337		4,387
Other		5		16
Total inventories	$	101,124	$	55,428