Exhibit 23.8

CAWLEY, GILLESPIE & ASSOCIATES, INC.

CONSENT OF CAWLEY, GILLESPIE & ASSOCIATES, INC.

As independent consultants, Cawley, Gillespie & Associates, Inc. hereby consents to the references to our firm in this Registration Statement on Form S-1 for WildHorse Resource Development Corporation, and to the use of information from, and the inclusion of, our reserve audits (i) dated January 20, 2016, with respect to the estimates of reserves and future net revenues of Esquisto Resources II, LLC, as of December 31, 2014, (ii) dated March 14, 2016, with respect to the estimates of reserves and future net revenues of Esquisto Resources II, LLC as of December 31, 2015, and (iii) dated August 29, 2016, with respect to the estimates of reserves and future net revenues of Esquisto Resources II, LLC as of June 30, 2016, in this Registration Statement. We further consent to the reference to our firm under the heading “Experts” in this Registration Statement and related prospectus.