Inventories (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Components of inventory

Components of inventories at September 30, 2013 and December 31, 2012 were as follows: 

	September 30, 2013		December 31, 2012
Natural gas liquids	$	53,005	$	33,610
Sulfur	5,859		14,892
Sulfur based products	14,517		17,824
Lubricants	27,112		27,366
Other	6,290		2,295
	$	106,783	$	95,987