Inventory

Inventory is comprised primarily of refined products, liquefied petroleum gases, transmix, crude oil and additives, which are stated and relieved at the lower of average cost or net realizable value.

Inventory at December 31, 2016 and 2017 was as follows (in thousands):



	December 31,
	2016		2017
Refined products	$	54,285	$	73,845
Liquefied petroleum gases	24,868		45,553
Transmix	28,319		33,319
Crude oil	20,839		23,763
Additives	6,067		5,865
Total inventory	$	134,378	$	182,345