POWER OF ATTORNEY





 KNOW ALL PERSONS BY THESE PRESENTS, that I hereby constitute and

appoint Kim K.W. Rucker, Carrie P. Ryan, Elisa Watts and Jean M. Mosel, and each of

them, as my true and lawful attorney-in-fact and agent and in my name, place and stead,

in any and all capacities, to sign any or all Forms 3, 4, and 5 relating to equity securities

of Tesoro Corporation (the "Company") pursuant to the requirements of Section 16 of the

Securities Exchange Act of 1934, and to file the same with the Securities and Exchange

Commission and the New York Stock Exchange, granting unto said attorney-in-fact and

agent full power and authority to do and perform each and every act and thing requisite

and necessary to be done in about the premises, as fully to all intents and purposes as I

might or could do in person, hereby ratifying and affirming all that said attorney-in-fact

and agent may lawfully do or cause to be done by virtue hereof.  This authorization,

unless earlier revoked by me in writing, shall be valid until my reporting obligations

under Section 16 with respect to equity securities of the Company shall cease.





Date:  November 22, 2016







      Blane W. Peery

                  Signature