Inventories (Inventory Components) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Inventory, Net [Abstract]
Crude oil		$ 581,417	$ 549,886
Other raw materials and unfinished products	[1]	396,618	287,561
Finished products	[2]	655,336	465,432
Lower of cost or market reserve		(223,833)	(332,518)
Process chemicals	[3]	24,792	2,767
Repairs and maintenance supplies and other (4)	[4]	195,762	162,548
Total inventory		$ 1,630,092	$ 1,135,676

[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.

[4] (4)Includes RINs