4. Inventories

The major components of inventories were as follows:



	March 31, 2015		December 31, 2014
Petroleum products	$	26,791	$	30,108
Crude oil	30,043		7,266
Caustic soda	2,392		2,850
NaHS	4,573		6,603
Other	3		2
Total	$	63,802	$	46,829

Inventories are valued at the lower of cost or market. The market value of inventories was below recorded costs by approximately $0.2 million and $6.6 million at March 31, 2015 and December 31, 2014, respectively; therefore we reduced the value of inventory in our Unaudited Condensed Consolidated Financial Statements for this difference.