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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
50104	Tesoro Corp W	TSO	Petroleum Refining (2911)	950862768

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1111385	A Bruce Smith	19100 Ridgewood Parkway San Antonio TX 78259	President And Ceo	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-03-18	50,000	$5.02	1,180,087	No	4	M	Direct
Common Stock	Disposition	2010-03-18	50,000	$0.00	1,130,087	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option	Disposition	2010-03-18	50,000	$0.00	50,000	$5.02

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
2,760,808		2010-10-24	No	4	M	Direct

Footnotes

Balance includes 17,167 shares of restricted shares, 25,311 shares in Company's Thrift Plan and direct ownership of 1,087,609 shares less dividends.
"Right to Buy"
Grant has a graded vesting schedule. Date exercisable will vary for each vesting tranche.
Shares sold as noted in Table 1.
50,000 Shares sold as: 1500 at $14.26, 4300 at $14.27, 2200 at $14.28, 1300 at $14.29, 3500 at $14.30, 1400 at $14.31, 1700 at $14.32, 2000 at $14.35, 2100 at $14.36, 2100 at $14.37, 1500 at $14.38, 2000 at $14.39, 1800 at $14.40, 6400 at $14.41, 5780 at $14.42, 7590 at $14.43, 2730 at $14.44 and 100 at $14.45.