Inventories (Inventory Components) (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Inventory, Net [Abstract]
Crude oil		$ 518,922	$ 581,592
Other raw materials and unfinished products	[1]	214,832	204,467
Finished products	[2]	603,568	531,523
Lower of cost or market reserve		(624,457)	(397,478)
Process chemicals	[3]	4,477	4,028
Repairs and maintenance supplies and other		124,527	110,999
Total inventory		$ 841,869	$ 1,035,131

[1] Other raw materials and unfinished products include feedstocks and blendstocks, other than crude.

[2] Finished products include gasolines, jet fuels, diesels, lubricants, asphalts, LPG’s and residual fuels.

[3] Process chemicals include additives and other chemicals.