Select Water Solutions, Inc. — Director's Dealing 2019

May 14, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Select Energy Services, Inc. (WTTR)
CIK: 0001693256
Period of Report: 2019-05-10

Reporting Person: Crestview Partners II GP, L.P. (Director, 10% Owner)
Reporting Person: Crestview Partners II SES Investment B, LLC (Director, 10% Owner)
Reporting Person: Crestview Partners II SES Investment, LLC (Director, 10% Owner)
Reporting Person: Crestview Advisors, L.L.C. (Director, 10% Owner)
Reporting Person: Delaney Robert V. Jr. (Director)
Reporting Person: Klein Adam J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-05-10	Class A Common Stock	A	26590	—	Acquired	3829562	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class B Common Stock	16221101	Indirect

Footnotes

F1: Represents awards of 13,295 restricted shares of Class A Common Stock of the Issuer ("Class A Shares") granted to each of Robert V. Delaney, Jr. and Adam J. Klein (each, a "Crestview Director") under the Select Energy Services, Inc. 2016 Equity Incentive Plan (the "Plan"). The restricted Class A Shares are scheduled to vest on May 10, 2020, subject to the terms of the Plan and the applicable award agreement issued thereunder. Each of the Crestview Directors has assigned all rights, title and interest in the restricted Class A Shares granted to them to Crestview Advisors, L.L.C.

F2: Includes 3,802,972 Class A Shares directly beneficially owned by Crestview Partners II SES Investment B, LLC ("Crestview II SES B").

F3: Represents shares of Class B Common Stock of the Issuer ("Class B Shares") indirectly beneficially owned by Crestview Partners II SES Investment, LLC ("Crestview II SES") through SES Legacy Holdings, LLC ("Legacy Holdings").

F4: Crestview Partners II GP, L.P. is the general partner of (i) Crestview Partners II, L.P., Crestview Partners II (TE), L.P. (which is the general partner of Crestview Holdings II (TE), L.P.) and Crestview Partners II (FF), L.P., each of which are direct or indirect members of Crestview II SES and (ii) Crestview Offshore Holdings II (Cayman), L.P., Crestview Offshore Holdings II (FF Cayman), L.P. and Crestview Offshore Holdings II (892 Cayman), L.P., each of which is a direct member of Crestview II SES B. Crestview Advisors, L.L.C. provides investment advisory and management services to certain of the foregoing entities.

F5: Each of the Crestview Directors are members of the Issuer's board of directors. Mr. Delaney is an indirect member of each of Crestview, L.L.C. (which is the general partner of Crestview Partners II GP, L.P.) and Crestview Advisors, L.L.C., which provides investment advisory and management services to certain of the foregoing entities. Mr. Klein is a Partner of each of Crestview, L.L.C. and Crestview Advisors, L.L.C.

F6: Each of Crestview Partners II GP, L.P., Crestview Offshore Holdings II (Cayman), L.P., Crestview Offshore Holdings II (FF Cayman), L.P. and Crestview Offshore Holdings II (892 Cayman), L.P. may be deemed to have beneficial ownership of the Class A Shares directly beneficially owned by Crestview II SES B.

F7: Each of Crestview Partners II GP, L.P., Crestview Partners II, L.P., Crestview Partners II (TE), L.P., Crestview Holdings II (TE), L.P. and Crestview Partners II (FF), L.P. may be deemed to have beneficial ownership of the Class B Shares and Common LLC Units of the of SES Holdings, LLC (a subsidiary of the Issuer) indirectly beneficially owned by Crestview II SES.

F8: Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.