Inventories (Details) (USD $) In Thousands	Sep. 30, 2011		Dec. 31, 2010
Inventories [Abstract]
Crude oil	$ 403,128		$ 96,570
Other raw materials and unfinished products	174,009	[1]	68,792	[1]
Finished products	590,992	[2]	188,274	[2]
Process chemicals	42,029	[3]	22,512	[3]
Repairs and maintenance supplies and other	55,361		24,219
Inventories, total	$ 1,265,519		$ 400,367

[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 catalysts, additives and other chemicals.