Statements of Consolidated Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
REVENUES	$ 30,303		$ 20,583		$ 16,872
COSTS AND EXPENSES:
Cost of sales (a)	27,007		18,251		14,739
Operating expenses	1,495		1,474		1,469
Selling, general and administrative expenses	237		242		221
Depreciation and amortization expense	417		422		426
Loss on asset disposals and impairments	67		54		74
OPERATING INCOME (LOSS)	1,080	[1],[2]	140	[1],[2]	(57)	[2]
Interest and financing costs	(177)		(157)		(130)
Interest income	2		3		4
Foreign currency exchange gain (loss)	(2)		2		(5)
Other income (expense)	2		(13)		0
EARNINGS (LOSS) BEFORE INCOME TAXES	905		(25)		(188)
Income tax expense (benefit)	342	[3]	4	[4]	(48)
NET EARNINGS (LOSS)	563	[5]	(29)	[5]	(140)
Less net income attributable to noncontrolling interest	17		0		0
NET EARNINGS (LOSS) ATTRIBUTABLE TO TESORO CORPORATION	546		(29)		(140)
NET EARNINGS (LOSS) PER SHARE:
Basic	$ 3.86	[6]	$ (0.21)	[6]	$ (1.01)
Diluted	$ 3.81	[6]	$ (0.21)	[6]	$ (1.01)
WEIGHTED AVERAGE COMMON SHARES:
Basic	141.4		140.6		138.2
Diluted	143.3		140.6		138.2
DIVIDENDS PER SHARE	$ 0.00		$ 0.00		$ 0.35
SUPPLEMENTAL INFORMATION:
(a) Includes excise taxes collected by our retail segment	$ 376		$ 330		$ 283

[1] Includes impairment charges related to the change in scope of a capital project at our Los Angeles refinery of $48 million and $20 million, for the three months ended June 30, 2011 and March 31, 2010, respectively. Also includes a $48 million gain for the three months ended June 30, 2010, from the elimination of postretirement life insurance benefits for current and future retirees.

[2] Includes a $48 million gain for the year ended December 31, 2010, from the elimination of postretirement life insurance benefits for current and future retirees.

[3] The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners' share of partnership income.

[4] The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from subsidiaries.

[5] Includes $37 million and $67 million in insurance recoveries related to the April 2, 2010 incident at our Washington refinery for the three months ended June 30, 2011 and December 31, 2010, respectively.

[6] The sum of four quarters may not equal annual results due to rounding or quarterly number of shares outstanding.