Phillips 66 Partners (PSXP) 8-K Other Events

Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-190195) pertaining to the Incentive Compensation Plan of Phillips 66 Partners LP of our report dated May 22, 2014, with respect to the consolidated financial statements of Phillips 66 Partners LP included in Exhibit 99.3 to this Current Report (Form 8-K) for the year ended December 31, 2013.

/s/ Ernst & Young LLP

Houston, Texas

May 22, 2014