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Inventories

12 Months Ended

Dec. 31, 2011

5. Inventories

The major components of inventories were as follows:


	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

At December 31, 2011 and 2010, market values of our inventory exceeded recorded costs.

- Definition

The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

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