8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 15, 2008

Tesoro Corporation

(Exact name of registrant as specified in its charter)

Delaware (State or other jurisdiction of incorporation)	1-3473 (Commission File Number)	95-0862768 (IRS Employer Identification No.)
300 Concord Plaza Drive San Antonio, Texas (Address of principal executive offices)		78216-6999 (Zip Code)

(210) 828-8484
(Registrant’s telephone number,
including area code)

Not Applicable
(Former name or former address, if
changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2.):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02(b) Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.

     On February 15, 2008, Tesoro Corporation issued a press release (the “Press Release”) announcing that Dan Porter has been named Senior Vice President – Refining, replacing Bill Haywood who will become Senior Vice President – Strategy Development. The changes are effective March 1, 2008. Mr. Haywood is a named executive officer of the Company as defined in Regulation S-K Item 402(a)(3). Replacing Mr. Porter as Senior Vice President – Supply and Optimization is Joe McCoy who joined the Company on February 18, 2008. The Press Release is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

          (c) Exhibits.

99.1 Press Release issued on February 15, 2008 by Tesoro Corporation.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: February 20, 2008

TESORO	CORPORATION
By:	/s/ Otto C. Schwethelm
	Otto C. Schwethelm
	Vice President, Chief Financial Officer

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Index to Exhibits

Exhibit Number		Description
	99.1	Press Release issued on February 15, 2008 by Tesoro Corporation.

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EX-99.1

FOR IMMEDIATE RELEASE

Contacts:

Investors:
Scott Phipps, Director, Investor Relations, (210) 283-2882

Media:
Natalie Silva, Director, Public Relations, (210) 283-2729

Tesoro Names Dan Porter Senior Vice President – Refining;

Bill Haywood Senior Vice President – Strategy Development and

Joe McCoy Senior Vice President – Supply and Optimization

SAN ANTONIO – February 15, 2008 – Tesoro Corporation (“Tesoro”) (NYSE: TSO) today announced that Dan Porter has been named Senior Vice President – Refining, replacing Bill Haywood who will become Senior Vice President – Strategy Development. The changes are effective March, 1, 2008. Joe McCoy will join the company on February 18, 2008, as Senior Vice President – Supply and Optimization, replacing Porter.

Porter has 29 years of energy industry experience and was managing the Mandan, N.D., refinery when Tesoro acquired it from BP in 2001. Since joining Tesoro, Porter has been the regional president of both the Northern Great Plains and Northwest regions of the company’s refining operations and managed both the Mandan and Anacortes, Wash., refineries. He also has held the position of Senior Vice President – Marketing, leading the company’s growth in both commercial and retail marketing. Currently, he is Senior Vice President – Supply and Optimization. Dan’s vast industry experience and the leadership he has demonstrated while overseeing other major functions for Tesoro uniquely qualifies him for the refining position.

Haywood has 29 years of experience in the energy industry and joined Tesoro in 2002 as President of the California Region of Tesoro’s refining operations where he managed the

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Golden Eagle refinery. Prior to joining Tesoro, Haywood served in various positions with both Ultramar Diamond Shamrock Corp. and Mobil Research and Development Corp. In his new position, Haywood will apply his years of industry experience to refine the company’s 10-year business plan.

McCoy brings 38 years of diversified experience in various petroleum supply and trading positions. Prior to joining Tesoro, he was with Chevron and held positions as Vice President-Trading Capability and Vice President -Global Products Supply & Trading.

Tesoro Corporation, a Fortune 150 Company, is an independent refiner and marketer of petroleum products. Tesoro, through its subsidiaries, operates seven refineries in the western United States with a combined capacity of approximately 660,000 barrels per day. Tesoro’s retail-marketing system includes over 900 branded retail stations, of which more than 445 are company owned under the Tesoro®, Shell®, Mirastar® and USA Gasoline™ brands.

Please visit us at www.tsocorp.com

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