Select Water Solutions Inc. Watch

from 10-K 4 pages Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as Amended

from 10-K 4 pages Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as Amended

from S-8 13 pages Select Energy Services, Inc. Employee Stock Purchase Plan

from S-8 1 page First Amendment to the Select Energy Services, Inc. 2016 Equity Incentive Plan

from 8-K 27 pages Registration Rights Agreement

from 8-K 3 pages Assignment and Assumption Agreement

from S-8 17 pages Third Amended and Restated Certificate of Incorporation of Select Energy Services, Inc

from 8-K 29 pages Amended and Restated Registration Rights Agreement

from S-8 11 pages Select Energy Services, Inc. 2016 Equity Incentive Plan Stock Option Agreement

from S-8 9 pages Select Energy Services, Inc. 2016 Equity Incentive Plan Restricted Stock Unit Grant Notice

from S-8 24 pages Select Energy Services, Inc. 2016 Equity Incentive Plan

from S-1 26 pages Registration Rights Agreement

from S-1 26 pages Registration Rights Agreement

from S-1 1 page Sea 001 Incorporated Under the Laws of the State of Delaware Authorized: 250,000,000 Shares of Class a Common Stock, $0.01 Par Value Per Share See Reverse for Certain Definitions This Certifies That Is the Owner of Fully Paid and Non-Assessable Shares of Class a Common Stock, $0.01 Par Value Per Share, of Select Energy Services, Inc. Transferable on the Books of This Corporation in Person or by Attorney Upon Surrender of This Certificate Duly Endorsed or Assigned. This Certificate and the Shares Represented Hereby Are Subject to the Laws of the State of Delaware, and to the Articles of Incorporation and the Bylaws of the Corporation, as Now or Hereafter Amended. This Certificate Is Not Valid Until Countersigned by the Transfer Agent. in Witness Whereof, the Corporation Has Caused This Certificate to Be Signed by the Facsimile Signatures of Its Duly Authorized Officers and to Be Sealed With the Facsimile Seal of the Corporation. Dated: Chief Executive Officer Secretary Countersigned: American Stock Transfer & Trust Company, LLC 6201 15th Avenue, Brooklyn, Ny 11219 by Transfer Agent and Registrar Authorized Officer

from DRS 26 pages Registration Rights Agreement

from DRS 26 pages Registration Rights Agreement

from DRS 1 page Sea 001 Incorporated Under the Laws of the State of Delaware Authorized: 250,000,000 Shares of Class a Common Stock, $0.01 Par Value Per Share See Reverse for Certain Definitions This Certifies That Is the Owner of Fully Paid and Non-Assessable Shares of Class a Common Stock, $0.01 Par Value Per Share, of Select Energy Services, Inc. Transferable on the Books of This Corporation in Person or by Attorney Upon Surrender of This Certificate Duly Endorsed or Assigned. This Certificate and the Shares Represented Hereby Are Subject to the Laws of the State of Delaware, and to the Articles of Incorporation and the Bylaws of the Corporation, as Now or Hereafter Amended. This Certificate Is Not Valid Until Countersigned by the Transfer Agent. in Witness Whereof, the Corporation Has Caused This Certificate to Be Signed by the Facsimile Signatures of Its Duly Authorized Officers and to Be Sealed With the Facsimile Seal of the Corporation. Dated: Chief Executive Officer Secretary Countersigned: American Stock Transfer & Trust Company, LLC 6201 15th Avenue, Brooklyn, Ny 11219 by Transfer Agent and Registrar Authorized Officer