Inventories (Details) (USD $) In Thousands	Jun. 30, 2011		Dec. 31, 2010
Inventories
Crude oil	$ 179,650		$ 96,570
Other raw materials and unfinished products	56,677	[1]	68,792	[1]
Finished products	208,406	[2]	188,274	[2]
Process chemicals	22,576	[3]	22,512	[3]
Repairs and maintenance supplies and other	27,991		24,219
Total inventory	$ 495,300		$ 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.