Clayton Williams Energy (CWEI) 10-K 2015 FY Annual report

Williamson Petroleum Consultants, Inc.

Texas Registered Engineering Firm F-81

303 Veterans Airpark Lane, SUITE 1100

Midland, Texas 79705

Phone: 432-685-6100

Fax: 432-685-3909

E-Mail: wpc@wpc-inc.com

Exhibit 23.2

CONSENT OF INDEPENDENT ENGINEERS

As independent oil and gas consultants, Williamson Petroleum Consultants, Inc. hereby consents to the use of our report entitled “Evaluation of Oil and Gas Reserves to the Interests of Clayton Williams Energy, Inc. in Certain Domestic Oil and Gas Reserves and to the Interests of Warrior Gas Company in the Gataga Gas Unit No. 5A, Vermejo (Ellenburger) Field, Loving County, Texas Effective December 31, 2015, for Disclosure to the Securities and Exchange Commission, Williamson Project 5.9680” dated February 19, 2016 and data extracted therefrom (and all references to our Firm) included in or made a part of this Form 10‑K Annual Report to be filed on or about March 23, 2016 and to the incorporation by reference of this Form 10‑K Annual Report (including the use of our report and references to our Firm herein) into that certain Registration Statement on Form S-3 filed by Clayton Williams Energy, Inc. with the Securities and Exchange Commission, file number 333-116825, Form S-4 file numbers 333-193567 and 333-178470, and those certain Registration Statements on Form S-8 filed by Clayton Williams Energy, Inc. with the Securities and Exchange Commission, file numbers 33‑68320, 33‑68316, 33‑69688, and 33‑92834 covering the Bonus Incentive Plan of Clayton Williams Energy, Inc., Outside Directors Stock Option Plan of Clayton Williams Energy, Inc., Clayton Williams Energy, Inc. 401(k) Plan & Trust, and the Executive Incentive Stock Compensation Plan of Clayton Williams Energy, Inc., respectively.

/s/ WILLIAMSON PETROLEUM CONSULTANTS, INC.

Midland, Texas

March 23, 2016