Shell Midstream Partners (SHLX) 8-K/A Financial Statements and Exhibits

Exhibit 23.1

Consent of Independent Auditors

We consent to the incorporation by reference in the Registration Statements on FormS-3 (No.333-228144 andNo. 333-228146) of Shell Midstream Partners, L.P. of our report dated March 25, 2019 with respect to the financial statements of Colonial Pipeline Company, which appears in this Current Report on Form8-K/A of Shell Midstream Partners, L.P.

/s/ Ernst & Young LLP

Atlanta, Georgia

June 26, 2019