Exh. 23.1 PCO Ret Savings Plan 2013

We consent to the incorporation by reference in the Registration Statement (File No. 333-136333) on Form S-8 of Valero Energy Corporation of our report dated June 26, 2014, with respect to the statements of net assets available for benefits of the Premcor Retirement Savings Plan as of December 31, 2013 and 2012, and the related statements of changes in net assets available for benefits for the years then ended, and the supplemental Schedule H, Line 4i–Schedule of Assets (Held at End of Year) as of December 31, 2013, which report appears in the December 31, 2013 Annual Report on Form 11-K of the Premcor Retirement Savings Plan.