Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” in the Registration Statement (Form S-3) and related Prospectus pertaining to the Phillips 66 Omnibus Stock and Performance Incentive Plan and to the incorporation by reference therein of our report dated March 1, 2012, with respect to the combined financial statements and schedule of Phillips 66, included in its Form 10, as amended, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
Houston, Texas
May 1, 2012