WTTR / Select Water Solutions, Inc. - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Select Water Solutions, Inc.
US ˙ NYSE ˙ US81617J3014

Statistik Asas
LEI 54930094OK8LA3QDW486
CIK 1693256
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Select Water Solutions, Inc.
SEC Filings (Chronological Order)
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August 14, 2025 CERT

NYSE TEXAS CERTIFICATION

New York Stock Exchange 11 Wall Street New York, NY 10005 Tel: +1 212.656.3000 nyse.com August 14, 2025 Chief, Information Technology Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE MS 3040 Washington, DC 20549 To whom it may concern: The NYSE Texas certifies its approval for listing and registration of the Class A common stock, par value $0.01 per share, of Selec

August 14, 2025 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Select Water Solutions, Inc. (Exact name of reg

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Select Water Solutions, Inc. (Exact name of registrant as specified in its charter) Delaware 81-4561945 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identificatio

August 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): August 5, 2025 SELECT WATER SOLUT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): August 5, 2025 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

August 6, 2025 EX-99.1

Select Water Solutions Announces Second Quarter 2025 Financial and Operational Results and Other Strategic Updates Generated $82.6 million of Operating Cash Flow and $10.8 million of Free Cash Flow during the second quarter of 2025 Increased net inco

Exhibit 99.1 Contacts: Select Water Solutions, Inc. Garrett Williams – VP, Corporate Finance & Investor Relations FOR IMMEDIATE RELEASE (713) 296-1010 [email protected] Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] Select Water Solutions Announces Second Quarter 2025 Financial and Operational Results and Other Strategic Updates Generated $8

August 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SELE

May 7, 2025 EX-10.3

Limited Liability Company Agreement of AV Farms Management, LLC, dated February 14, 2025.

Exhibit 10.3 NOTE: Schedules and exhibits on file with registrant; information in redacted information has been excluded in reliance with regulation S-K, item 601(B)(10)(IV) because such information is both non material and it is the type that the registrant treats as confidential LIMITED LIABILITY COMPANY AGREEMENT of AV FARMS MANAGEMENT, LLC This Limited Liability Company Agreement (this “Agreem

May 7, 2025 EX-10.2

Limited Partnership Agreement of AV Farms, LP, dated as of February 14, 2025.

Exhibit 10.2 ** Certain information has been excluded from this exhibit because it is both non-material and the type of information that registrant treats as private and / or confidential. Omissions are redacted in the black highlights. LIMITED PARTNERSHIP AGREEMENT OF AV FARMS, LP, a Delaware limited partnership THE LIMITED PARTNERSHIP INTERESTS REPRESENTED BY THIS AGREEMENT HAVE NOT BEEN REGISTE

May 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SEL

May 6, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 6, 2025 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 2, 2025 SELECT WATER SOLUTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 2, 2025 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 6, 2025 EX-99.1

Select Water Solutions Announces First Quarter 2025 Financial, Operational and Strategic Updates Generated first quarter 2025 consolidated revenue of $374.4 million, an increase of $25 million or 7% sequentially, as compared to the fourth quarter of

Exhibit 99.1 News Release Contacts: Select Water Solutions, Inc. Garrett Williams – VP, Corporate Finance & Investor Relations (713) 296-1010 [email protected] Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] Select Water Solutions Announces First Quarter 2025 Financial, Operational and Strategic Updates Generated first quarter 2025 consolidat

March 18, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) ☑ Filed by the Registrant ☐ Filed by a Party other than the Registrant CHECK THE APPROPRIATE BOX: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 1

March 18, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) x Filed by the Registrant ¨ Filed by a party other than the Registrant CHECK THE APPROPRIATE BOX: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

February 19, 2025 EX-19.1

Select Water Solutions, Inc. Insider Trading Policy.

Exhibit 19.1 SELECT WATER SOLUTIONS, INC. insider Trading Policy (Amended as of February 14, 2025) This Insider Trading Policy (this “Policy”) provides guidelines to directors, officers, and employees, and certain contractors and consultants, of Select Water Solutions, Inc. (the “Company”) with respect to transactions in the Company’s securities (such as common stock, options to buy or sell common

February 19, 2025 EX-10.32

Form of Restricted Stock Grant Notice and Restricted Stock Agreement under the Select Water Solutions, Inc. 2024 Equity Incentive Plan.

Exhibit 10.32 SELECT WATER SOLUTIONS, INC. 2024 EQUITY INCENTIVE PLAN RESTRICTED STOCK GRANT NOTICE Pursuant to the terms and conditions of the Select Water Solutions, Inc. 2024 Equity Incentive Plan, as amended from time to time (the “Plan”), Select Water Solutions, Inc. (f/k/a Select Energy Services, Inc.) (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”)

February 19, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024. OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-38

February 19, 2025 EX-21.1

List of subsidiaries of Select Water Solutions, Inc.

Exhibit 21.1 Subsidiaries of Select Water Solutions, Inc. Entity State of Formation Select Agua Libre Midstream, LLC Delaware Complete Energy Services, Inc. Delaware SES Holdings, LLC Delaware Select Water Solutions, LLC Delaware Peak Rentals, LLC Texas Select Chemistry, LLC Delaware SES Sub A, LLC Delaware SES Sub B, LLC Delaware SES Sub C, LLC Delaware Select Energy Solutions (RW), Inc. Delaware

February 19, 2025 EX-10.26

Form of 2024 Restricted Stock Grant Notice and Restricted Stock Agreement under the Select Energy Services, Inc. 2016 Equity Incentive Plan.

Exhibit 10.26 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN RESTRICTED STOCK GRANT NOTICE Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the “Plan”), Select Water Solutions, Inc. (f/k/a Select Energy Services, Inc.) (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”)

February 19, 2025 EX-10.27

Form of 2024 Performance Share Unit Grant Notice and Performance Share Unit Agreement under the Select Energy Services, Inc. 2016 Equity Incentive Plan.

Exhibit 10.27 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the “Plan”), Select Water Solutions, Inc. (f/k/a Select Energy Services, Inc.) (the “Company”) hereby grants to the individual listed below (“you” or the “Particip

February 19, 2025 EX-10.33

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement under the Select Water Solutions, Inc. 2024 Equity Incentive Plan.

Exhibit 10.33 SELECT WATER SOLUTIONS, INC. 2024 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE Pursuant to the terms and conditions of the Select Water Solutions, Inc. 2024 Equity Incentive Plan, as amended from time to time (the “Plan”), Select Water Solutions, Inc. (f/k/a Select Energy Services, Inc.) (the “Company”) hereby grants to the individual listed below (“you” or the “Particip

February 18, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 18, 2025 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

February 18, 2025 EX-99.1

Select Water Solutions Announces Fourth Quarter and Full Year 2024 Financial and Operational Results and Strategic Updates Generated full year and fourth quarter 2024 consolidated revenue of $1.5 billion and $349 million, respectively Water Infrastru

Exhibit 99.1 Contacts: Select Water Solutions Inc. Garrett Williams – VP, Corporate Finance & Investor Relations (713) 296-1010 FOR IMMEDIATE RELEASE [email protected] Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] Select Water Solutions Announces Fourth Quarter and Full Year 2024 Financial and Operational Results and Strategic Updates Gener

February 14, 2025 EX-99.1

Joint Filing Agreement

EXHIBIT 99.1 Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the persons named below agrees to the joint filing of a Statement on Schedule 13G (including amendments thereto) with respect to the Common Shares, par value $0.01 per share, of Fidelis Insurance Holdings Limited, a Bermuda limited company, and further agrees that thi

January 30, 2025 EX-99.1

Oil & gas industry veterans Bruce Cope & Tim Roberts appointed to Select Water Solutions’ Board of Directors Troy Thacker to retire from Select Water Solutions’ Board of Directors

Exhibit 99.1 News Release Contacts: Select Water Solutions Garrett Williams – VP, Corporate Finance & Investor Relations (713) 296-1010 [email protected] FOR IMMEDIATE RELEASE Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] Oil & gas industry veterans Bruce Cope & Tim Roberts appointed to Select Water Solutions’ Board of Directors Troy Thacke

January 30, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): January 24, 2025 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

January 29, 2025 EX-10.1

Credit Agreement, dated as of January 24, 2025, by and among Select Water Solutions, LLC, SES Holdings, LLC, Bank of America, N.A., as administrative agent, and the lenders named therein (incorporated by reference herein to Exhibit 10.1 to Select Water Solutions, Inc.’s Current Report on Form 8-K, filed January 29, 2025 (File No. 001-38066)).

Exhibit 10.1 Execution Version CREDIT AGREEMENT dated as of January 24, 2025, among SELECT WATER SOLUTIONS, LLC, as Borrower, SES HOLDINGS, LLC, as Parent, BANK OF AMERICA, N.A. as Administrative Agent, Issuing Lender and Swingline Lender, BOFA SECURITIES, INC. and J.P. MORGAN SECURITIES LLC, as Joint Sustainability Structuring Agents, BANK OF AMERICA, N.A., JPMORGAN CHASE BANK, N.A., BANK OZK and

January 29, 2025 EX-99.1

Select Water Solutions Enhances Its Financial Strength with New $550 Million Sustainability-Linked Credit Facility

Exhibit 99.1 Select Water Solutions Enhances Its Financial Strength with New $550 Million Sustainability-Linked Credit Facility GAINESVILLE, Texas, Jan. 28, 2025 /PRNewswire/ - Select Water Solutions, Inc. (NYSE: WTTR) ("Select" or the "Company"), a leading provider of sustainable water and technology solutions to the energy industry, today announced the successful closing of a new five-year senio

January 29, 2025 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): January 24, 2025 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

November 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066

November 5, 2024 EX-99.1

Select Water Solutions Announces Third Quarter 2024 Financial Results and Operational Updates Generated revenue of $371 million during the third quarter of 2024, an increase of 2% sequentially compared to the second quarter of 2024 Produced $51.9 mil

Exhibit 99.1 News Release Contacts: Select Water Solutions Garrett Williams – VP, Corporate Finance & Investor Relations (713) 296-1010 FOR IMMEDIATE RELEASE [email protected] Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] Select Water Solutions Announces Third Quarter 2024 Financial Results and Operational Updates Generated revenue of $371

November 5, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): November 5, 2024 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

July 31, 2024 EX-99.1

Select Water Solutions Announces Second Quarter 2024 Financial Results and Operational Updates Generated revenue of $365 million during the second quarter of 2024 Generated $83.1 million of Operating Cash Flow and $37.4 million of Free Cash Flow duri

Exhibit 99.1 FOR IMMEDIATE RELEASE News Release Contacts: Select Water Solutions Chris George – EVP & CFO (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] Select Water Solutions Announces Second Quarter 2024 Financial Results and Operational Updates Generated revenue of $365 million during the second quarter of

July 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 30, 2024 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commiss

July 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SELE

May 28, 2024 EX-FILING FEES

Calculation of Filing Fee Tables.

Exhibit 107.1 Calculation of Filing Fee Tables Form S-8 Registration Statement Under The Securities Act Of 1933 (Form Type) Select Water Solutions, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1 – Newly Registered Securities Security Type Security Class Title Fee Calculation Rule (3) Amount Registered (1)(2) Proposed Maximum Offering Price Per Unit (3) Maximum Aggregate Offeri

May 28, 2024 EX-99.1

Select Water Solutions, Inc. 2024 Equity Incentive Plan.

Exhibit 99.1 SELECT WATER SOLUTIONS, INC. 2024 EQUITY INCENTIVE PLAN 1.             Purpose. The purpose of the Select Water Solutions, Inc. 2024 Equity Incentive Plan (the “Plan”) is to provide a means through which (a) Select Water Solutions, Inc., a Delaware corporation (the “Company”), and its Affiliates may attract, retain and motivate qualified persons to serve as employees, directors and co

May 28, 2024 S-8

As filed with the Securities and Exchange Commission on May 28, 2024

As filed with the Securities and Exchange Commission on May 28, 2024 Registration No.

May 9, 2024 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 8, 2024 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SEL

May 1, 2024 EX-10.1

Separation Agreement and General Release of Claims by and between Select Water Solutions, Inc. and Nicholas Swyka.

Exhibit 10.1 4873-5339-7929v.7 SEPARATION AGREEMENT AND GENERAL RELEASE OF CLAIMS This SEPARATION AGREEMENT AND GENERAL RELEASE OF CLAIMS (this “Agreement”) is entered into between Nicholas Swyka (“Employee”) and Select Water Solutions, LLC (the “Company”). Select Water Solutions, Inc. (“Select”) enters into this Agreement for the limited purpose of acknowledging and agreeing to Sections 3 and 13

April 30, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): April 30, 2024 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

April 30, 2024 EX-99.1

SELECT WATER SOLUTIONS ANNOUNCES FIRST QUARTER 2024 FINANCIAL RESULTS AND OPERATIONAL UPDATES Generated revenue of $367 million during the first quarter of 2024 Water Infrastructure segment generated revenue of $64 million during the first quarter of

Exhibit 99.1 Contacts: Select Water Solutions Chris George – EVP & CFO FOR IMMEDIATE RELEASE (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] SELECT WATER SOLUTIONS ANNOUNCES FIRST QUARTER 2024 FINANCIAL RESULTS AND OPERATIONAL UPDATES Generated revenue of $367 million during the first quarter of 2024 Water Inf

March 27, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) x Filed by the Registrant ¨ Filed by a party other than the Registrant CHECK THE APPROPRIATE BOX: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

March 27, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) ☑ Filed by the Registrant ☐ Filed by a party other than the Registrant CHECK THE APPROPRIATE BOX: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 4, 2024 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 4, 2024 SELECT WATER SOLUTIONS, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commiss

March 4, 2024 EX-99.1

SELECT WATER SOLUTIONS ANNOUNCES CFO TRANSITION

Exhibit 99.1 FOR IMMEDIATE RELEASE News Release Contacts: Select Water Solutions Chris George Executive Vice President & Chief Financial Officer (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] SELECT WATER SOLUTIONS ANNOUNCES CFO TRANSITION HOUSTON, TX – March 4, 2024 – Select Water Solutions, Inc. (NYSE: WTTR

February 21, 2024 EX-4.3

Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as amended.

EXHIBIT 4.3 Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as amended The following description of the capital stock of Select Water Solutions, Inc. (the “Company,” “we,” “us,” and “our) is based upon our Fifth Amended and Restated Certificate of Incorporation and our Third Amended and Restated Bylaws, which we refer to as our “amended and restated ce

February 21, 2024 EX-97.1

Select Water Solutions, Inc. Clawback Policy.

EXHIBIT 97.1 SELECT WATER SOLUTIONS, INC. CLAWBACK POLICY Approved by the Board of Directors on August 30, 2023 Effective as of October 2, 2023 1.Purpose. The purpose of this Policy is to describe the circumstances in which Executive Officers will be required to repay or return Erroneously Awarded Compensation to members of the Company Group. This Policy is designed to comply with, and will be int

February 21, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023. OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-38

February 21, 2024 EX-21.1

List of subsidiaries of Select Energy Services, Inc.

Exhibit 21.1 Subsidiaries of Select Water Solutions, Inc. Entity State of Formation Select Agua Libre Midstream, LLC Delaware Complete Energy Services, LLC Delaware SES Holdings, LLC Delaware Select Energy Services, LLC Delaware Peak Oilfield Services, LLC Texas Rockwater Energy Solutions, LLC Delaware SES Sub A, LLC Delaware SES Sub B, LLC Delaware SES Sub C, LLC Delaware Select Energy Solutions

February 20, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 20, 2024 SELECT WATER SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

February 20, 2024 EX-99.1

SELECT WATER SOLUTIONS ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS AND OPERATIONAL UPDATES Generated full year 2023 consolidated revenue of $1.6 billion, up 14% year-over-year Water Infrastructure generated full year 2023 revenues o

Exhibit 99.1 Contacts: Select Water Solutions, Inc. Chris George – Senior Vice President, Corporate Development, Investor Relations & Sustainability (713) 296-1073 [email protected] FOR IMMEDIATE RELEASE Dennard Lascar Investor Relations Ken Dennard / Natalie Hairston (713) 529-6600 [email protected] SELECT WATER SOLUTIONS ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS AND OPE

February 13, 2024 SC 13G

WTTR / Select Water Solutions, Inc. / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SC 13G 1 tv01894-selectwatersolutions.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Select Water Solutions, Inc. Class A Title of Class of Securities: Common Stock CUSIP Number: 81617J301 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate

February 9, 2024 SC 13G

WTTR / Select Water Solutions, Inc. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Select Water Solutions Inc (Name of Issuer) Common Stock (Title of Class of Securities) 81617J301 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

November 8, 2023 SC 13D/A

WTTR / Select Water Solutions Inc - Class A / B-29 Gp, Llc - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2) Select Water Solutions, Inc. (Name of Issuer) Class A Common Stock, par value $0.01 per share (Title of Class of Securities) 641119 102 (CUSIP Number) 1233 W. Loop South, Suite 1400 Houston, TX 77027 (713) 235-9500 (Name, Address and Telephone Number of P

November 1, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066

October 31, 2023 EX-99.1

SELECT WATER SOLUTIONS ANNOUNCES THIRD QUARTER 2023 FINANCIAL RESULTS AND OPERATIONAL UPDATES

Exhibit 99.1 SELECT WATER SOLUTIONS ANNOUNCES THIRD QUARTER 2023 FINANCIAL RESULTS AND OPERATIONAL UPDATES Generated consolidated revenue of $389 million during the third quarter of 2023, up 4% year-over-year as compared to the third quarter of 2022 Water Infrastructure generated revenues of $58.4 million, an 86% increase year-over-year as compared to the third quarter of 2022 Delivered $118.2 mil

October 31, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2023 SELECT WATER SOLUTIONS, INC. (Exact name of Registrant as Specified in Its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

October 4, 2023 SC 13D/A

WTTR / Select Water Solutions Inc - Class A / Scf Gp Llc - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.

August 3, 2023 EX-99.1

SELECT WATER SOLUTIONS ANNOUNCES SECOND QUARTER 2023 FINANCIAL RESULTS AND OPERATIONAL UPDATES

Exhibit 99.1 SELECT WATER SOLUTIONS ANNOUNCES SECOND QUARTER 2023 FINANCIAL RESULTS AND OPERATIONAL UPDATES Generated revenue of $405 million during the second quarter of 2023, up 20% year-over-year as compared to the second quarter of 2022 On a year-over-year basis, net income increased 55% to $22.6 million and Adjusted EBITDA improved 47% to $69.8 million during the second quarter of 2023 Delive

August 3, 2023 EX-10.3

Amendment No. 2 to Tax Receivable Agreement, dated June 23, 2023, by and among Select Energy Services, Inc. and Crestview Partners II SES Investment B, LLC (incorporated by reference herein to Exhibit 10.3 to Select Water Solutions, Inc.’s Quarterly Report on Form 10-Q, filed August 3, 2023 (File No. 001-38066)).

Exhibit 10.3 AMENDMENT NO. 2 TO TAX RECEIVABLE AGREEMENT This AMENDMENT NO. 2 (this “Amendment”), dated as of June 23, 2023, to that certain Tax Receivable Agreement, dated as of December 19, 2016 (as amended prior to the date hereof, the “Agreement”), by and among Select Energy Services, Inc., a Delaware corporation (the “Corporate Taxpayer”), the TRA Holders and the Agent. Capitalized terms used

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SELE

August 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 02, 2023 SELECT WATER SOLUTIONS, INC. (Exact name of Registrant as Specified in Its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commi

August 3, 2023 EX-99.2

Disclaimer Statement Cautionary Statement Regarding Forward Looking Statements This presentation, including the oral statements made in connection herewith, contains certain statements and information that may constitute “forward-looking statements”

Changes to Segment Reporting & Recast Financial Information August 2023 Exhibit 99.

August 3, 2023 EX-10.2

Amendment No. 2 to Tax Receivable Agreement, dated June 23, 2023, by and among Select Energy Services, Inc., SES Legacy Holdings, LLC, Crestview Partners II SES Investment, LLC, Sunray Capital, LP and B-29 Investments LP (incorporated by reference herein to Exhibit 10.2 to Select Water Solutions, Inc.’s Quarterly Report on Form 10-Q, filed August 3, 2023 (File No. 001-38066)).

Exhibit 10.2 AMENDMENT NO. 2 TO TAX RECEIVABLE AGREEMENT This AMENDMENT NO. 2 (this “Amendment”), dated as of June 23, 2023, to that certain Tax Receivable Agreement, dated as of December 19, 2016 (as amended prior to the date hereof, the “Agreement”), by and among Select Energy Services, Inc., a Delaware corporation (the “Corporate Taxpayer”), the other signatories hereto (collectively, the “TRA

May 8, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 4, 2023 SELECT WATER SOLUTION

SELECT ENERGY SERVICES, INC. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 4, 2023 SELECT WATER SOLUTIONS, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction

May 8, 2023 EX-10.1

Employment Agreement between John D. Schmitz and Select Energy Services, LLC, dated May 5, 2023 (incorporated by reference herein to Exhibit 10.1 to Select Water Solutions, Inc.’s Current Report on Form 8-K, filed May 8, 2023 (File No. 001-38066)).

Exhibit 10.1 Execution Version EMPLOYMENT AGREEMENT This Employment Agreement (“Agreement”) is made and entered into by and between Select Energy Services, LLC, a Delaware limited liability company (the “Company”), and John D. Schmitz (“Employee”) effective as of May 5, 2023 (the “Effective Date”). WHEREAS, Employee is currently employed by the Company and serves as its President and Chief Executi

May 8, 2023 EX-3.2

Third Amended and Restated Bylaws of Select Water Solutions, Inc. dated as of May 8, 2023 (incorporated by reference herein to Exhibit 3.2 to Select Water Solutions, Inc.’s Current Report on Form 8-K, filed May 8, 2023).

Exhibit 3.2 THIRD AMENDED AND RESTATED BYLAWS OF SELECT WATER SOLUTIONS, INC. Incorporated under the Laws of the State of Delaware Date of Adoption: May 8, 2023 ARTICLE I OFFICES AND RECORDS SECTION 1.1. Registered Office. The registered office of Select Water Solutions, Inc. (the “Corporation”) in the State of Delaware shall be as set forth in the Fifth Amended and Restated Certificate of Incorpo

May 8, 2023 EX-3.1

Fifth Amended and Restated Certificate of Incorporation of Select Water Solutions, Inc. dated as of May 8, 2023 (incorporated by reference herein to Exhibit 3.1 to Select Water Solutions, Inc.’s Current Report on Form 8-K, filed May 8, 2023).

Exhibit 3.1 FIFTH AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF SELECT ENERGY SERVICES, INC. Select Energy Services, Inc. (the “Corporation”), a corporation organized and existing under the General Corporation Law of the State of Delaware as set forth in Title 8 of the Delaware Code (the “DGCL”), hereby certifies as follows: 1.            The original Certificate of Incorporation of the Cor

May 8, 2023 EX-99.1

SELECT ENERGY SERVICES COMPLETES NAME CHANGE TO SELECT WATER SOLUTIONS

Exhibit 99.1 News Release Contacts: Select Energy Services Chris George – Senior Vice President, Corporate Development, Investor Relations & Sustainability (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard (713) 529-6600 [email protected] SELECT ENERGY SERVICES COMPLETES NAME CHANGE TO SELECT WATER SOLUTIONS HOUSTON, TX – May 8, 2023 – Select Water Solut

May 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SEL

May 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 2, 2023

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 2, 2023 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 3, 2023 EX-99

SELECT ENERGY SERVICES ANNOUNCES FIRST QUARTER 2023 FINANCIAL RESULTS AND OPERATIONAL UPDATES

Exhibit 99.1 SELECT ENERGY SERVICES ANNOUNCES FIRST QUARTER 2023 FINANCIAL RESULTS AND OPERATIONAL UPDATES Generated revenue of $417 million during the first quarter of 2023, up 9% sequentially from the fourth quarter of 2022 Water Infrastructure segment generated revenue of $102 million during the first quarter of 2023, up 32% sequentially from the fourth quarter of 2022 Net income increased 81%

April 5, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A 1 tm231882d5defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (a

March 20, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

March 8, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.      ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

February 22, 2023 EX-21.1

List of subsidiaries of Select Energy Services, Inc.

Exhibit 21.1 Subsidiaries of Select Energy Services, Inc. Entity State of Formation Select Agua Libre Midstream, LLC Delaware Complete Energy Services, LLC Delaware SES Holdings, LLC Delaware Select Energy Services, LLC Delaware Peak Oilfield Services, LLC Texas Rockwater Energy Solutions, LLC Delaware SES Sub A, LLC Delaware SES Sub B, LLC Delaware SES Sub C, LLC Delaware Select Energy Solutions

February 22, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022. OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-38

February 22, 2023 EX-10.28

Transition and Separation Agreement and General Release of Claims by and between Select Energy Services, LLC and Adam Law, dated October 21, 2022.

Exhibit 10.28 TRANSITION AND SEPARATION AGREEMENT AND GENERAL RELEASE OF CLAIMS This TRANSITION AND SEPARATION AGREEMENT AND GENERAL RELEASE OF CLAIMS (“Agreement”) is entered into by and between Select Energy Services, LLC, a Delaware limited liability company (the “Company”), and Adam Law (“Employee”). Select Energy Services, Inc., a Delaware corporation (“Select”), enters into this Agreement fo

February 22, 2023 EX-10.22

First Amendment to the Select Energy Services, Inc. Employee Stock Purchase Plan (incorporated by reference herein to Exhibit 10.22 to Select Energy Services Inc.’s Annual Report on Form 10-K, filed February 22, 2023 (File No. 001-38066)).

Exhibit 10.22 FIRST AMENDMENT TO THE SELECT ENERGY SERVICES, INC. EMPLOYEE STOCK PURCHASE PLAN THIS FIRST AMENDMENT (the “First Amendment”) to the Select Energy Services, Inc. Employee Stock Purchase Plan (the “Plan”), is made effective as of November 3, 2022 (the “Amendment Effective Date”), by Select Energy Services, Inc. (the “Company”). Capitalized terms used but not otherwise defined herein s

February 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 21, 2023

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 21, 2023 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

February 21, 2023 EX-99

SELECT ENERGY SERVICES ANNOUNCES CORPORATE REBRANDING INITIATIVE, MULTIPLE NEW ACQUISITIONS AND REPORTS FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS AND OPERATIONAL UPDATES

Exhibit 99.1 SELECT ENERGY SERVICES ANNOUNCES CORPORATE REBRANDING INITIATIVE, MULTIPLE NEW ACQUISITIONS AND REPORTS FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS AND OPERATIONAL UPDATES Select Energy Services, Inc. intends to become Select Water Solutions, Inc., further aligning the brand with the Company's vision to be the recognized leader and trusted partner in sustainable water manageme

February 14, 2023 EX-99.1

Joint Filing Agreement

EX-99.1 2 dp188657ex9901.htm EXHIBIT 1 EXHIBIT 1 Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the persons named below agrees to the joint filing of a Statement on Schedule 13G (including amendments thereto) with respect to the Class A common stock, par value $0.01 per share, and Class B common stock, par value $0.01 per shar

February 14, 2023 SC 13G/A

WTTR / Select Energy Services Inc / Crestview Partners II GP, L.P. - FORM SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* Select Energy Services, Inc. (Name of Issuer) Class A Common Stock, par value $0.01 per share (Title of Class of Securities) 81617J301 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

December 16, 2022 SC 13D/A

WTTR / Select Energy Services Inc / Scf Gp Llc - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Select Energy Services, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.01 Per Share (Title of Class of Securities) 81617J301 (CUSIP Number) Anthony DeLuca SCF Partners, Inc. 600 Travis Street, Suite 6600 Houston, Texas 77002 (713) 227-7888 (Nam

November 4, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 3, 2022 SELECT ENERGY SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 3, 2022 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 1-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

November 4, 2022 S-3ASR

As filed with the Securities and Exchange Commission on November 4, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 4, 2022 Registration No.

November 4, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Select Energy Services, Inc.

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

November 2, 2022 EX-99.1

SELECT ENERGY SERVICES ANNOUNCES ACQUISITION OF BREAKWATER ENERGY PARTNERS, REPORTS THIRD QUARTER 2022 FINANCIAL RESULTS AND PROVIDES OTHER OPERATIONAL & ACQUISITION UPDATES

Exhibit 99.1 SELECT ENERGY SERVICES ANNOUNCES ACQUISITION OF BREAKWATER ENERGY PARTNERS, REPORTS THIRD QUARTER 2022 FINANCIAL RESULTS AND PROVIDES OTHER OPERATIONAL & ACQUISITION UPDATES Revenue of $375 million generated during the third quarter of 2022, up 12% sequentially from the second quarter of 2022 Net income of $24.7 million & Adjusted EBITDA of $62.8 million during the third quarter of 20

November 2, 2022 8-K

Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 1, 2022 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

October 21, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 21, 2022 SELECT ENERGY SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 21, 2022 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

August 12, 2022 EX-24.4

Power of Attorney of Gayle Burleson

EX-24.4 5 tm2223036d1ex24-4.htm EXHIBIT 24.4 Exhibit 24.4 Power of Attorney of Gayle Burleson The undersigned appoints Nick L. Swyka and Adam R. Law, and each of them, any of whom may act without the joinder of the other, as her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for her and in her name, place and stead, in any and all capacities, to s

August 12, 2022 EX-24.2

Power of Attorney of Troy W. Thacker

Exhibit 24.2 Power of Attorney of Troy W. Thacker The undersigned appoints Nick L. Swyka and Adam R. Law, and each of them, any of whom may act without the joinder of the other, as his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments (including post-e

August 12, 2022 POS AM

As filed with the Securities and Exchange Commission on August 12, 2022

As filed with the Securities and Exchange Commission on August 12, 2022 Registration No.

August 12, 2022 EX-24.2

Power of Attorney of Luis Fernandez-Moreno

EX-24.2 3 tm2223029d1ex24-2.htm EXHIBIT 24.2 Exhibit 24.2 Power of Attorney of Luis Fernandez-Moreno The undersigned appoints John D. Schmitz, Nick L. Swyka and Adam R. Law, and each of them, any of whom may act without the joinder of the other, as his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any

August 12, 2022 EX-24.3

Power of Attorney of Luis Fernandez-Moreno

Exhibit 24.3 Power of Attorney of Luis Fernandez-Moreno The undersigned appoints Nick L. Swyka and Adam R. Law, and each of them, any of whom may act without the joinder of the other, as his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments (including

August 12, 2022 POS AM

As filed with the Securities and Exchange Commission on August 12, 2022

As filed with the Securities and Exchange Commission on August 12, 2022 Registration No.

August 3, 2022 424B3

Select Energy Services, Inc. 41,799,229 Shares of Class A Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-224956 PROSPECTUS SUPPLEMENT No. 3 (To Prospectus Dated March 25, 2022) Select Energy Services, Inc. 41,799,229 Shares of Class A Common Stock This prospectus supplement No. 3 supplements the preliminary prospectus (as may be supplemented from time to time, the ?Prospectus?) dated March 25, 2022, filed as part of that Post-Eff

August 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

August 3, 2022 424B3

Select Energy Services, Inc. 3,109,562 Shares of Class A Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-261726 PROSPECTUS SUPPLEMENT No. 3 (To Prospectus Dated March 30, 2022) Select Energy Services, Inc. 3,109,562 Shares of Class A Common Stock This prospectus supplement No. 3 supplements the prospectus dated March 30, 2022 filed pursuant to Rule 424(b)(1) (as may be supplemented from time to time, the ?Prospectus?) by Select E

August 2, 2022 EX-99.1

SELECT ENERGY SERVICES REPORTS SECOND QUARTER 2022 FINANCIAL RESULTS AND PROVIDES OPERATIONAL UPDATES

Exhibit 99.1 SELECT ENERGY SERVICES REPORTS SECOND QUARTER 2022 FINANCIAL RESULTS AND PROVIDES OPERATIONAL UPDATES Revenue of $335.9 million generated during the second quarter of 2022, up 14% sequentially from the first quarter of 2022 Net income of $14.6 million & Adjusted EBITDA of $47.7 million during the second quarter of 2022 Improved gross margin before depreciation and amortization across

August 2, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 2, 2022 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

May 11, 2022 424B3

Select Energy Services, Inc. 41,799,229 Shares of Class A Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-224956 PROSPECTUS SUPPLEMENT No. 2 (To Prospectus Dated March 25, 2022) Select Energy Services, Inc. 41,799,229 Shares of Class A Common Stock This prospectus supplement No. 2 supplements the preliminary prospectus (as may be supplemented from time to time, the ?Prospectus?) dated March 25, 2022, filed as part of that Post-Effective Amendment N

May 11, 2022 424B3

Select Energy Services, Inc. 3,109,562 Shares of Class A Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-261726 PROSPECTUS SUPPLEMENT No. 2 (To Prospectus Dated March 30, 2022) Select Energy Services, Inc. 3,109,562 Shares of Class A Common Stock This prospectus supplement No. 2 supplements the prospectus dated March 30, 2022 filed pursuant to Rule 424(b)(1) (as may be supplemented from time to time, the ?Prospectus?) by Select Energy Services, In

May 10, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2022 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 5, 2022 424B3

Select Energy Services, Inc. 41,799,229 Shares of Class A Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-224956 PROSPECTUS SUPPLEMENT No. 1 (To Prospectus Dated March 25, 2022) Select Energy Services, Inc. 41,799,229 Shares of Class A Common Stock This prospectus supplement No. 1 supplements the preliminary prospectus (the ?Prospectus?) dated March 25, 2022, filed as part of that Post-Effective Amendment No. 5 to Form S-3 on Form

May 5, 2022 424B3

Select Energy Services, Inc. 3,109,562 Shares of Class A Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-261726 PROSPECTUS SUPPLEMENT No. 1 (To Prospectus Dated March 30, 2022) Select Energy Services, Inc. 3,109,562 Shares of Class A Common Stock This prospectus supplement No. 1 supplements the prospectus dated March 30, 2022 filed pursuant to Rule 424(b)(1) (the ?Prospectus?) by Select Energy Services, Inc. Pursuant to the Prosp

May 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

May 3, 2022 EX-99.1

SELECT ENERGY SERVICES REPORTS FIRST QUARTER 2022 FINANCIAL RESULTS AND PROVIDES OPERATIONAL UPDATE

Exhibit 99.1 SELECT ENERGY SERVICES REPORTS FIRST QUARTER 2022 FINANCIAL RESULTS AND PROVIDES OPERATIONAL UPDATE Revenue of $294.8 million generated during the first quarter of 2022, up 16% sequentially from the fourth quarter of 2021 Net income of $8.0 million and Adjusted EBITDA of $32.2 million during the first quarter of 2022 Repurchased 2.3 million shares of Class A common stock in the open m

May 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 3, 2022 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

March 31, 2022 424B1

Select Energy Services, Inc. 3,109,562 Shares of Class A common stock

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(1)? ?Registration No. 333-261726? PROSPECTUS Select Energy Services, Inc. 3,109,562 Shares of Class A common stock ? The securities to be offered and sold using this prospectus are currently issued and outstanding shares of our Class A common stock. These shares of Class A common stock may be offered and sold by the selling stockholder named in this

March 25, 2022 POS AM

As filed with the Securities and Exchange Commission on March 25, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 25, 2022 Registration No.

March 25, 2022 DEF 14A

Schedule 14A

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.??????) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as permitted by

March 25, 2022 POS AM

As filed with the Securities and Exchange Commission on March 25, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 25, 2022 Registration No.

March 18, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): March 17, 2022 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

March 18, 2022 EX-99.1

SELECT ENERGY SERVICES ENHANCES ITS FINANCIAL STRENGTH AND SUSTAINABILITY LEADERSHIP THROUGH EXTENSION OF CREDIT FACILITY WITH SUSTAINABILITY-LINKED PRICING Sustainability-Linked Loan Facility extended through March 2027, providing up to $270 million

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Contacts: Select Energy Services Chris George - SVP, Corporate Development, Investor Relations & Sustainability and Treasurer (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard 713-529-6600 [email protected] SELECT ENERGY SERVICES ENHANCES ITS FINANCIAL STRENGTH AND SUSTAINABILITY LEADERSHIP THROUGH EXTENSION OF CRE

March 18, 2022 EX-10.1

Amended and Restated Credit Agreement, dated as of March 17, 2022, by and among Select Energy Services, LLC, SES Holdings, LLC, Wells Fargo Bank, N.A., as administrative agent, and the lenders named therein (incorporated by reference herein to Exhibit 10.1 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed March 18, 2022).

Exhibit 10.1 AMENDED AND RESTATED CREDIT AGREEMENT dated as of March 17, 2022, among SELECT ENERGY SERVICES, LLC, as Borrower, SES HOLDINGS, LLC, as Parent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent, Issuing Lender and Swingline Lender, WELLS FARGO CAPITAL FINANCE, LLC, as Sustainability Structuring Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION and BANK OF AMERICA, N.A. as Jo

March 2, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-1 (Form Type) Select Energy Services, Inc.

March 2, 2022 POS AM

As filed with the Securities and Exchange Commission on March 1, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 1, 2022 Registration No.

March 2, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Select Energy Services, Inc.

March 2, 2022 POS AM

As filed with the Securities and Exchange Commission on March 1, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 1, 2022 Registration No.

February 23, 2022 EX-FILING FEES

Calculation of Filing Fee Tables

Exhibit 107.1 Calculation of Filing Fee Tables Form S-8 Registration Statement Under The Securities Act Of 1933 (Form Type) Select Energy Services, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1 ? Newly Registered Securities Security Type Security Class Title Fee Calculation Rule (3) Amount Registered (1)(2) Proposed Maximum Offering Price Per Unit (3) Maximum Aggregate Offeri

February 23, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 23, 2022 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

February 23, 2022 S-8

As filed with the Securities and Exchange Commission on February 23, 2022

As filed with the Securities and Exchange Commission on February 23, 2022 Registration No.

February 23, 2022 EX-99.2

Nuverra Environmental Solutions, Inc. 2018 Restricted Stock Plan for Directors (incorporated by reference herein to Exhibit 99.2 to Select Energy Services, Inc.’s Registration Statement on Form S-8 dated February 23, 2022 (Registration No. 333-262939).

Exhibit 99.2 NUVERRA ENVIRONMENTAL SOLUTIONS, INC. 2018 RESTRICTED STOCK PLAN FOR DIRECTORS THIS NUVERRA ENVIRONMENTAL SOLUTIONS, INC. 2018 RESTRICTED STOCK PLAN FOR DIRECTORS (the ?Plan?) is made effective this 22nd day of February, 2018, to govern the grant of shares of restricted stock to Directors of the Company. ARTICLE I Definitions As used herein, the following terms have the meanings herei

February 23, 2022 EX-21.1

List of subsidiaries of Select Energy Services, Inc. (incorporated by reference herein to Exhibit 21.1 to Select Energy Services, Inc.’s Annual Report on Form 10-K, filed February 23, 2022 (File No. 001-38066)).

Exhibit 21.1 Subsidiaries of Select Energy Services, Inc. Entity State of Formation Select Agua Libre Midstream, LLC ? Delaware Complete Energy Services, LLC ? Delaware SES Holdings, LLC Delaware Select Energy Services, LLC Delaware Peak Oilfield Services, LLC Texas Rockwater Energy Solutions, LLC Delaware Tidal Logistics, Inc. ? Texas ?

February 23, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 23, 2022 EX-99.1

Nuverra Environmental Solutions, Inc. 2017 Long Term Incentive Plan (incorporated by reference herein to Exhibit 99.1 to Select Energy Services, Inc.’s Registration Statement on Form S-8, dated February 23, 2022 (Registration No. 333-262939).

Exhibit 99.1 Nuverra Environmental Solutions, Inc. 2017 Long Term Incentive Plan 1. Purpose. The purpose of the Nuverra Environmental Solutions, Inc. 2017 Long Term Incentive Plan (the ?Plan?) is to provide a means through which (a) Nuverra Environmental Solutions, Inc., a Delaware corporation (the ?Company?), and its Affiliates may attract, retain and motivate qualified persons as employees, dire

February 23, 2022 EX-99.1

SELECT ENERGY SERVICES COMPLETES ACQUISITION OF NUVERRA ENVIRONMENTAL SOLUTIONS Further strengthens Water Services segment through market and geographic consolidation as well as increased weighting to production-related solutions Addition of sizable

Exhibit 99.1 News Release Contacts: Select Energy Services Chris George - VP, Investor Relations & Treasurer (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard 713-529-6600 [email protected] SELECT ENERGY SERVICES COMPLETES ACQUISITION OF NUVERRA ENVIRONMENTAL SOLUTIONS Further strengthens Water Services segment through market and geographic consolidation as well

February 22, 2022 EX-99.1

SELECT ENERGY SERVICES REPORTS FOURTH QUARTER AND FISCAL YEAR 2021 FINANCIAL RESULTS AND OPERATIONAL UPDATES

Exhibit 99.1 SELECT ENERGY SERVICES REPORTS FOURTH QUARTER AND FISCAL YEAR 2021 FINANCIAL RESULTS AND OPERATIONAL UPDATES Revenue of $255 million generated during the fourth quarter of 2021, up 25% sequentially from the third quarter of 2021 Net income of $11.2 million and Adjusted EBITDA of $26.4 million during the fourth quarter of 2021 As previously announced, on October 1, 2021 closed on the a

February 22, 2022 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 22, 2022 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

February 11, 2022 SC 13G/A

WTTR / Select Energy Services Inc / Crestview Partners II GP, L.P. - AMENDMENT NO. 4 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* Select Energy Services, Inc. (Name of Issuer) Class A Common Stock, par value $0.01 per share (Title of Class of Securities) 81617J301 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

February 11, 2022 EX-99.1

Joint Filing Agreement

EXHIBIT 1 Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the persons named below agrees to the joint filing of a Statement on Schedule 13G (including amendments thereto) with respect to the Class A common stock, par value $0.

January 25, 2022 425

SELECT ENERGY SERVICES ANNOUNCES RECEIPT OF CONSENTS TO THE ACQUISITION OF NUVERRA ENVIRONMENTAL SOLUTIONS FROM MAJORITY STOCKHOLDERS

Filed by Select Energy Services, Inc. pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Nuverra Environmental Solutions, Inc. Commission File No.: 001-33816 Date: January 25, 2022 News Release Contacts: Select Energy Services Chris George - VP, Investor Relations & Treasurer (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard / Lisa Elliott 713-529

January 25, 2022 424B3

NUVERRA ENVIRONMENTAL SOLUTIONS, INC. 11111 Katy Freeway, Suite 1006 Houston, Texas 77079 NOTICE OF SOLICITATION OF WRITTEN CONSENT

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(3)? ?Registration No. 333-262027? Dear Stockholders of Nuverra Environmental Solutions, Inc.: On December 12, 2021, Nuverra Environmental Solutions, Inc. (?Nuverra?) entered into an Agreement and Plan of Merger (as may be amended from time to time, the ?Merger Agreement?) with Select Energy Services, Inc. (?Select?) and certain subsidiaries of Selec

January 14, 2022 CORRESP

Via EDGAR

Via EDGAR January 14, 2022 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

January 6, 2022 EX-99.1

Written Consent of Nuverra Common Stockholders.

Exhibit 99.1 FORM OF WRITTEN CONSENT NUVERRA ENVIRONMENTAL SOLUTIONS, INC. The board of directors of Nuverra Environmental Solutions, Inc., a Delaware corporation (?Nuverra?), recommends that you consent to approve each proposal set forth below. Please return this written consent no later than [ ] (Central Time) on [ ], 2022, which is the Nuverra consent deadline. Your shares will be tabulated and

January 6, 2022 S-4

As filed with the Securities and Exchange Commission on January 5, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on January 5, 2022 Registration No.

December 28, 2021 424B1

Select Energy Services, Inc. 1,211,375 Shares of Class A common stock

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(1)? ?Registration No. 333-261726? PROSPECTUS Select Energy Services, Inc. 1,211,375 Shares of Class A common stock ? The securities to be offered and sold using this prospectus are currently issued and outstanding shares of our Class A common stock. These shares of Class A common stock may be offered and sold by the selling stockholder named in this

December 22, 2021 CORRESP

Via EDGAR

Via EDGAR December 22, 2021 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

December 17, 2021 S-1

Power of Attorney (included on the signature page of this Registration Statement).

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on December 17, 2021 Registration No.

December 13, 2021 EX-10.2

SUPPORT AGREEMENT

Exhibit 10.2 SUPPORT AGREEMENT THIS SUPPORT AGREEMENT, dated as of December 12, 2021 (this ?Agreement?), is entered into by and among Select Energy Services, Inc., a Delaware corporation (?Parent?), Navy Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (?Merger Sub?), Navy Holdco, LLC, a Delaware limited liability company (?Holdco LLC? and, together with Parent and

December 13, 2021 EX-2.1

Agreement and Plan of Merger, dated as of December 12, 2021, by and among Select Energy Services, Inc., Navy Holdings, Inc., Navy Holdco, LLC, Navy Merger Sub, Inc. and Nuverra Environmental Solutions, Inc. (incorporated by reference herein to Exhibit 2.1 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed December 13, 2021 (File No. 001-38066)).

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER by and among SELECT ENERGY SERVICES, INC., a Delaware corporation, NAVY HOLDCO, LLC, a Delaware limited liability company, NAVY MERGER SUB, INC., a Delaware corporation, and NUVERRA ENVIRONMENTAL SOLUTIONS, INC., a Delaware corporation Dated as of December 12, 2021 TABLE OF CONTENTS ARTICLE 1 THE INTEGRATED MERGERS; CLOSING 2 1.1 Merger of Merger Sub into t

December 13, 2021 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 12, 2021 SELECT ENERGY S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 12, 2021 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

December 13, 2021 424B3

Select Energy Services, Inc. 3,600,000 Shares of Class A Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-259083 PROSPECTUS SUPPLEMENT No. 2 (To Prospectus Dated September 3, 2021) Select Energy Services, Inc. 3,600,000 Shares of Class A Common Stock This prospectus supplement No. 2 supplements the prospectus dated September 3, 2021 filed pursuant to Rule 424(b)(1) (the ?Prospectus?) by Select Energy Services, Inc. Pursuant to the Prospectus, this

December 13, 2021 EX-99.1

SELECT ENERGY SERVICES ENTERS INTO DEFINITIVE AGREEMENT TO ACQUIRE NUVERRA ENVIRONMENTAL SOLUTIONS AND CLOSES ON THE ACQUISITION OF THE U.S. ONSHORE ASSETS OF HB RENTALS Further strengthens Water Services segment through market consolidation, geograp

Exhibit 99.1 NEWS RELEASE Contacts: Select Energy Services Chris George?VP, Investor Relations & Treasurer (713) 296-1073 [email protected] FOR IMMEDIATE RELEASE Dennard Lascar Investor Relations Ken Dennard / Lisa Elliott 713-529-6600 [email protected] SELECT ENERGY SERVICES ENTERS INTO DEFINITIVE AGREEMENT TO ACQUIRE NUVERRA ENVIRONMENTAL SOLUTIONS AND CLOSES ON THE ACQUISITION OF THE U.S

December 13, 2021 424B3

Select Energy Services, Inc. 902,593 Shares of Class A Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-260093 PROSPECTUS SUPPLEMENT No. 2 (To Prospectus Dated October 14, 2021) Select Energy Services, Inc. 902,593 Shares of Class A Common Stock This prospectus supplement No. 2 supplements the prospectus dated October 14, 2021 filed pursuant to Rule 424(b)(1) (the ?Prospectus?) by Select Energy Services, Inc. Pursuant to the Prospectus, this pros

December 13, 2021 EX-10.1

SUPPORT AGREEMENT

Exhibit 10.1 SUPPORT AGREEMENT THIS SUPPORT AGREEMENT, dated as of December 12, 2021 (this ?Agreement?), is entered into by and among Select Energy Services, Inc., a Delaware corporation (?Parent?), Navy Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (?Merger Sub?), Navy Holdco, LLC, a Delaware limited liability company (?Holdco LLC? and, together with Parent and

December 13, 2021 SC 13G

WTTR / Select Energy Services Inc / SUPERIOR ENERGY SERVICES INC - SC 13G Passive Investment

SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Select Energy Services, Inc. (Name of Issuer) Class A Common Stock, par value $0.01 per share (Title of Class of Securities) 81617J301 (CUSIP Number) December 3, 2021 Date of Event Which Requires Filing of this Statement Check the appropriate box t

December 13, 2021 EX-10.1

Support Agreement, dated as of December 12, 2021, by and among Select Energy Services, Inc., Navy Merger Sub, Inc., Navy Holdco, LLC, Nuverra Environmental Solutions, Inc. Ascribe II Investments LLC and Ascribe III Investments LLC

Exhibit 10.1 SUPPORT AGREEMENT THIS SUPPORT AGREEMENT, dated as of December 12, 2021 (this ?Agreement?), is entered into by and among Select Energy Services, Inc., a Delaware corporation (?Parent?), Navy Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (?Merger Sub?), Navy Holdco, LLC, a Delaware limited liability company (?Holdco LLC? and, together with Parent and

December 13, 2021 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among SELECT ENERGY SERVICES, INC., a Delaware corporation, NAVY HOLDCO, LLC, a Delaware limited liability company, NAVY MERGER SUB, INC., a Delaware corporation, NUVERRA ENVIRONMENTAL SOLUTIONS, INC., a Delaware c

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER by and among SELECT ENERGY SERVICES, INC., a Delaware corporation, NAVY HOLDCO, LLC, a Delaware limited liability company, NAVY MERGER SUB, INC., a Delaware corporation, and NUVERRA ENVIRONMENTAL SOLUTIONS, INC., a Delaware corporation Dated as of December 12, 2021 TABLE OF CONTENTS ARTICLE 1 THE INTEGRATED MERGERS; CLOSING 2 1.1 Merger of Merger Sub into t

December 13, 2021 EX-99.1

SELECT ENERGY SERVICES ENTERS INTO DEFINITIVE AGREEMENT TO ACQUIRE NUVERRA ENVIRONMENTAL SOLUTIONS AND CLOSES ON THE ACQUISITION OF THE U.S. ONSHORE ASSETS OF HB RENTALS Further strengthens Water Services segment through market consolidation, geograp

Exhibit 99.1 NEWS RELEASE Contacts: Select Energy Services Chris George?VP, Investor Relations & Treasurer (713) 296-1073 [email protected] FOR IMMEDIATE RELEASE Dennard Lascar Investor Relations Ken Dennard / Lisa Elliott 713-529-6600 [email protected] SELECT ENERGY SERVICES ENTERS INTO DEFINITIVE AGREEMENT TO ACQUIRE NUVERRA ENVIRONMENTAL SOLUTIONS AND CLOSES ON THE ACQUISITION OF THE U.S

December 13, 2021 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT Pursuant to Rule 13d-1(k)(1) of the Securities Exchange Act of 1934, as amended, each of the undersigned hereby consent to the joint filing on its behalf of a single Schedule 13G and any amendments thereto, with respect to the beneficial ownership by each of the undersigned of the shares of Class A Common Stock, par value $0.01 per share, of Select Energy Servic

December 13, 2021 EX-10.2

Support Agreement, dated as of December 12, 2021, by and among Select Energy Services, Inc., Navy Merger Sub, Inc., Navy Holdco, LLC, Nuverra Environmental Solutions, Inc. and Gates Capital Management, Inc.

Exhibit 10.2 SUPPORT AGREEMENT THIS SUPPORT AGREEMENT, dated as of December 12, 2021 (this ?Agreement?), is entered into by and among Select Energy Services, Inc., a Delaware corporation (?Parent?), Navy Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (?Merger Sub?), Navy Holdco, LLC, a Delaware limited liability company (?Holdco LLC? and, together with Parent and

December 13, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 12, 2021 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

December 3, 2021 8-K

Unregistered Sales of Equity Securities

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 3, 2021 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

November 4, 2021 424B3

Select Energy Services, Inc. 3,600,000 Shares of Class A Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-259083 PROSPECTUS SUPPLEMENT No. 1 (To Prospectus Dated September 3, 2021) Select Energy Services, Inc. 3,600,000 Shares of Class A Common Stock This prospectus supplement No. 1 supplements the prospectus dated September 3, 2021 filed pursuant to Rule 424(b)(1) (the ?Prospectus?) by Select Energy Services, Inc. Pursuant to the

November 4, 2021 424B3

Select Energy Services, Inc. 902,593 Shares of Class A Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-260093 PROSPECTUS SUPPLEMENT No. 1 (To Prospectus Dated October 14, 2021) Select Energy Services, Inc. 902,593 Shares of Class A Common Stock This prospectus supplement No. 1 supplements the prospectus dated October 14, 2021 filed pursuant to Rule 424(b)(1) (the ?Prospectus?) by Select Energy Services, Inc. Pursuant to the Pro

November 3, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

November 2, 2021 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 2, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

November 2, 2021 EX-99.1

Select Energy Services Reports Third Quarter 2021 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports Third Quarter 2021 Financial Results And Operational Updates Revenue of $205 million generated during the third quarter of 2021, up 27% sequentially from the second quarter of 2021 As previously announced, closed on the acquisition of Complete Energy Services, Inc. ("Complete"), the water solutions subsidiary of Superior Energy Services, Inc. ("Superior"

October 14, 2021 424B1

Select Energy Services, Inc. 902,593 Shares of Class A common stock

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(1)? ?Registration No. 333-260093? PROSPECTUS Select Energy Services, Inc. 902,593 Shares of Class A common stock ? The securities to be offered and sold using this prospectus are currently issued and outstanding shares of our Class A common stock. These shares of Class A common stock may be offered and sold by the selling stockholder named in this p

October 12, 2021 CORRESP

Via EDGAR

Via EDGAR October 12, 2021 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

October 6, 2021 S-1

As filed with the Securities and Exchange Commission on October 6, 2021

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on October 6, 2021 Registration No.

September 3, 2021 424B1

Select Energy Services, Inc. 3,600,000 Shares of Class A common stock

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(1)? ?Registration No. 333-259083? PROSPECTUS Select Energy Services, Inc. 3,600,000 Shares of Class A common stock ? The securities to be offered and sold using this prospectus are currently issued and outstanding shares of our Class A common stock. These shares of Class A common stock may be offered and sold by the selling stockholder named in this

September 1, 2021 CORRESP

Via EDGAR

Via EDGAR September 1, 2021 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

August 26, 2021 S-1

As filed with the Securities and Exchange Commission on August 26, 2021

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 26, 2021 Registration No.

August 20, 2021 8-K

Regulation FD Disclosure, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): August 17, 2021 SELECT ENERGY SERVICES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commi

August 20, 2021 EX-99.1

SELECT ENERGY SERVICES ENTERS INTO “STALKING HORSE” ASSET PURCHASE AGREEMENT TO ACQUIRE AGUA LIBRE MIDSTREAM AND OTHER WATER RELATED ASSETS FROM BASIC ENERGY SERVICES

Exhibit 99.1 SELECT ENERGY SERVICES ENTERS INTO ?STALKING HORSE? ASSET PURCHASE AGREEMENT TO ACQUIRE AGUA LIBRE MIDSTREAM AND OTHER WATER RELATED ASSETS FROM BASIC ENERGY SERVICES 17 August 2021 HOUSTON, Aug. 17, 2021 /PRNewswire/ - Select Energy Services, Inc. (NYSE: WTTR) (?Select? or ?the Company?), a leading provider of sustainable water and chemical solutions to the U.S. unconventional oil an

August 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

August 4, 2021 EX-10.1

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement – Adjusted EBITDA – under the Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.1 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed August 4, 2021).

Exhibit 10.1 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE ? ADJUSTED EBITDA Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the ?Plan?), Select Energy Services, Inc. (the ?Company?) hereby grants to the individual listed below (?you? or the ?Participant?) the number of

August 3, 2021 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 3, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

August 3, 2021 EX-99.1

Select Energy Services Reports Second Quarter 2021 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports Second Quarter 2021 Financial Results And Operational Updates Revenue of $161 million generated during the second quarter of 2021, up 12% sequentially from the first quarter of 2021 As previously announced, closed on the acquisition of Complete Energy Services, Inc. ("Complete"), the water solutions subsidiary of Superior Energy Services, Inc. ("Superior

July 23, 2021 8-K/A

Unregistered Sales of Equity Securities

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 12, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commi

July 15, 2021 EX-99.1

Select Energy Services Announces The Acquisition Of Complete Energy Services, The Water Solutions Subsidiary Of Superior Energy Services

Exhibit 99.1 Select Energy Services Announces The Acquisition Of Complete Energy Services, The Water Solutions Subsidiary Of Superior Energy Services Significantly enhances Water Services segment through market consolidation, geographic expansion and an increased weighting to production-related solutions Addition of sizable produced water infrastructure footprint across Oklahoma and Texas will bol

July 15, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 12, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commiss

June 17, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 16, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commiss

June 17, 2021 EX-99.1

SELECT ENERGY SERVICES ANNOUNCES THE APPOINTMENT OF GAYLE L. BURLESON TO ITS BOARD OF DIRECTORS AND PROVIDES OPERATIONAL AND BUSINESS DEVELOPMENT UPDATES Appointed oil & gas industry veteran Gayle L. Burleson to Select Energy Services’ Board of Direc

Exhibit 99.1 News Release Contacts: Select Energy Services Chris George - VP, Investor Relations & Treasurer (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard / Lisa Elliott 713-529-6600 [email protected] SELECT ENERGY SERVICES ANNOUNCES THE APPOINTMENT OF GAYLE L. BURLESON TO ITS BOARD OF DIRECTORS AND PROVIDES OPERATIONAL AND BUSINESS DEVELOPMENT UPDAT

May 7, 2021 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 7, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 5, 2021 EX-10.6

Form of Restricted Stock Grant Notice and Restricted Stock Agreement between John D. Schmitz and Select Energy Services, Inc. under the Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.6 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 5, 2021 (File No. 001-38066)).

Exhibit 10.6 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN RESTRICTED STOCK GRANT NOTICE Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the ?Plan?), Select Energy Services, Inc. (the ?Company?) hereby grants to the individual listed below (?you? or the ?Participant?) the number of shares of Restricted Sto

May 5, 2021 EX-10.7

Form of Special Restricted Stock Grant Notice and Restricted Stock Agreement between John D. Schmitz and Select Energy Services, Inc. under the Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.7 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 5, 2021 (File No. 001-38066)).

Exhibit 10.7 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN SPECIAL RESTRICTED STOCK GRANT NOTICE Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the ?Plan?), Select Energy Services, Inc. (the ?Company?) hereby grants to the individual listed below (?you? or the ?Participant?) the number of shares of Restri

May 5, 2021 EX-10.5

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement —  Return on Assets — under the Select Energy Services, Inc. 2016 Equity Incentive Plan. (incorporated by reference herein to Exhibit 10.5 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 5, 2021 (File No. 001-38066)).

Exhibit 10.5 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE ? RETURN ON ASSETS Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the ?Plan?), Select Energy Services, Inc. (the ?Company?) hereby grants to the individual listed below (?you? or the ?Participant?) the number of

May 5, 2021 EX-10.8

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement —  Adjusted Free Cash Flow — between John D. Schmitz and Select Energy Services, Inc. under the Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.8 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 5, 2021 (File No. 001-38066)).

Exhibit 10.8 ? SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE ? ADJUSTED FREE CASH FLOW Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the ?Plan?), Select Energy Services, Inc. (the ?Company?) hereby grants to the individual listed below (?you? or the ?Participant?) the

May 5, 2021 EX-10.10

Release Agreement by and between Select Energy Services, LLC and Holli C. Ladhani, dated January 3, 2021 (incorporated by reference herein to Exhibit 10.10 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 5, 2021 (File No. 001-38066)).

Exhibit 10.10 RELEASE AGREEMENT This Release Agreement (this ?Agreement?) constitutes the release referred to in that certain Employment Agreement dated as of June 1, 2011, by and between Holli C. Ladhani, f/k/a Holli C. Nichols (?Executive?) and Rockwater Energy Solutions, LLC, f/k/a Rockwater Energy Solutions, Inc. (?Rockwater?), which Employment Agreement was assigned by Rockwater to Select Ene

May 5, 2021 EX-10.9

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement —  Return on Assets — between John D. Schmitz and Select Energy Services, Inc. under the Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.9 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 5, 2021 (File No. 001-38066)).

Exhibit 10.9 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE ? RETURN ON ASSETS Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the ?Plan?), Select Energy Services, Inc. (the ?Company?) hereby grants to the individual listed below (?you? or the ?Participant?) the number of

May 5, 2021 EX-99.1

Select Energy Services Reports First Quarter 2021 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports First Quarter 2021 Financial Results And Operational Updates Revenue of $144 million generated during the first quarter of 2021, up 8% sequentially Commenced operations at two water reuse and recycling projects in the Midland and Delaware basins during the first quarter of 2021 Total available liquidity of $262 million, including $160 million of cash and

May 5, 2021 EX-10.4

Employment Agreement between Brian Szymanski and Select Energy Services, LLC, dated March 1, 2021 (incorporated by reference herein to Exhibit 10.4 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 5, 2021 (File No. 001-38066)).

Exhibit 10.4 EMPLOYMENT AGREEMENT This Employment Agreement (?Agreement?) is made and entered into by and between Select Energy Services, LLC, a Delaware limited liability company (the ?Company?), and Brian Szymanski (?Employee?) effective as of March 1, 2021 (the ?Effective Date?). ? WHEREAS, Employee is currently employed by the Company; and ? WHEREAS, the Company desires to continue to employ E

May 5, 2021 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 4, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 5, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 5, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 2, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commiss

March 25, 2021 DEF 14A

Definitive Proxy Statement on Schedule 14A for our 2021 annual meeting of stockholders

DEF 14A 1 tm212455-1def14a.htm DEF 14A TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the C

March 5, 2021 EX-10.3

Letter Agreement between Michael Skarke and Select Energy Services, Inc., dated March 1, 2021 (incorporated by reference herein to Exhibit 10.3 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed March 5, 2021 (File No. 001-38066)).

Exhibit 10.3 March 1, 2021 Michael Skarke [ ] Dear Michael: This letter memorializes the understanding between you and Select Energy Services, LLC, a Delaware limited liability company (the ?Company?) regarding your compensation for your employment as Executive Vice President of the Company beginning March 1, 2021 (the ?Effective Date?). As of March 1, 2020 your annualized base salary was reduced

March 5, 2021 EX-10.1

Letter Agreement between John D. Schmitz and Select Energy Services, LLC, dated March 1, 2021 (incorporated by reference herein to Exhibit 10.1 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed March 5, 2021 (File No. 001-38066)).

Exhibit 10.1 March 1, 2021 By e-mail John D. Schmitz PO Box 819 Gainesville, Texas 76241 [email protected] Re: Annual Bonus Opportunity Dear John: This letter is intended to set forth the terms and conditions of your annual bonus opportunity under the Select Energy Services Inc. Short Term Incentive Program (the ?STI Plan?) that differ from the terms generally applicable to other executive

March 5, 2021 EX-10.2

Amended and Restated Employment Agreement between Michael Skarke and Select Energy Services, LLC, dated March 1, 2021 (incorporated by reference herein to Exhibit 10.2 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed March 5, 2021 (File No. 001-38066)).

Exhibit 10.2 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This Amended and Restated Employment Agreement ( ?Agreement?), by and between Select Energy Services, LLC, a Delaware limited liability company (the ?Company?), and Michael Skarke (?Employee?), is dated and effective as of March 1, 2021 (the ?Effective Date?). WHEREAS, the Company and Employee are party to that certain Employment Agreement, da

March 5, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 1, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commiss

February 24, 2021 10-K

Annual Report - 10-K

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 24, 2021 EX-21.1

List of subsidiaries of Select Energy Services, Inc. (incorporated by reference herein to Exhibit 21.1 to Select Energy Services, Inc.’s Annual Report on Form 10-K, filed February 24, 2021 (File No. 001-38066)).

Exhibit 21.1 Subsidiaries of Select Energy Services, Inc. Entity State of Formation SES Holdings, LLC Delaware Select Energy Services, LLC Delaware Peak Oilfield Services, LLC Texas Rockwater Energy Solutions, LLC Delaware Tidal Logistics, Inc. ? Texas ?

February 23, 2021 EX-99.1

Select Energy Services Reports Fourth Quarter And Fiscal Year 2020 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports Fourth Quarter And Fiscal Year 2020 Financial Results And Operational Updates Revenue of $133 million generated during the fourth quarter of 2020, up 32% sequentially Total available liquidity of $250 million, including $169 million of cash and cash equivalents, and no debt outstanding at the end of the fourth quarter of 2020 Progressing recently announc

February 23, 2021 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 23, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

February 11, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Select Energy Services, Inc. (Name of Issuer) Class A Common Stock, par value $0.01 per share (Title of Class of Securities) 81617J301 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

February 11, 2021 EX-99.1

Joint Filing Agreement

EXHIBIT 1 Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the persons named below agrees to the joint filing of a Statement on Schedule 13G (including amendments thereto) with respect to the Class A common stock, par value $0.

February 2, 2021 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 1, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

February 2, 2021 EX-99.1

Select Energy Services Announces Two Permian Recycling Facility Projects, Strategic Technology Investment And Preliminary Unaudited Results And Conference Call Schedule For The Fourth Quarter Of 2020

Exhibit 99.1 Select Energy Services Announces Two Permian Recycling Facility Projects, Strategic Technology Investment And Preliminary Unaudited Results And Conference Call Schedule For The Fourth Quarter Of 2020 Commencement of two produced water recycling facility projects in the Permian Basin backed by long-term contracts totaling 80,000 barrels per day of capacity $3 million strategic investme

January 8, 2021 POS AM

- POS AM

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on January 8, 2021 Registration No.

January 4, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Termination of a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 3, 2021 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commi

January 4, 2021 EX-99.1

SELECT ENERGY SERVICES ANNOUNCES CEO TRANSITION

Exhibit 99.1 Contacts: Select Energy Services Chris George - VP, Investor Relations & Treasurer (713) 296-1073 [email protected] Dennard Lascar Investor Relations Ken Dennard / Lisa Elliott 713-529-6600 [email protected] SELECT ENERGY SERVICES ANNOUNCES CEO TRANSITION HOUSTON, TX – January 4, 2021 – Select Energy Services, Inc. (NYSE: WTTR) (“Select” or “the Company”), a leading pro

November 4, 2020 EX-10.1

Separation and Consulting Agreement by and between Select Energy Services, LLC and Mitchell M. Shauf, dated August 31, 2020 (incorporated by reference herein to Exhibit 10.1 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed November 4, 2020 (File No. 001-38066)).

Exhibit 10.1 SEPARATION AND CONSULTING AGREEMENT This Separation and Consulting Agreement (this “Separation Agreement”) among Select Energy Services, Inc. (the “Company”), Select Energy Services, LLC (“Select LLC”) and Mitchell M. Shauf (“you” and similar words) sets forth certain terms of your separation from the Company and Select LLC. By signing this Separation Agreement, you and the Company ag

November 4, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066

November 3, 2020 8-K

Financial Statements and Exhibits - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 3, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

November 3, 2020 EX-99.1

Select Energy Services Reports Third Quarter 2020 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports Third Quarter 2020 Financial Results And Operational Updates Revenue of $101 million generated during the third quarter of 2020, up 10% sequentially $19 million net increase in cash during the third quarter of 2020 Total available liquidity of $233 million, including $185 million of cash and cash equivalents, and no debt outstanding at the end of the thi

August 18, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 14, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commi

August 6, 2020 S-8

- FORM S-8

As filed with the Securities and Exchange Commission on August 6, 2020 Registration No.

August 5, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SELE

August 4, 2020 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 4, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

August 4, 2020 EX-99.1

Select Energy Services Reports Second Quarter 2020 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports Second Quarter 2020 Financial Results And Operational Updates Revenue of $92 million and cash flow from operations of $56 million generated during the second quarter of 2020 Total available liquidity of $262 million including $166 million of cash with no debt outstanding at the end of the second quarter of 2020 Realized substantial cost savings from imme

May 14, 2020 EX-10.2

Form of Letter Agreement (incorporated by reference herein to Exhibit 10.2 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed May 14, 2020 (File No. 001-38066)).

Exhibit 10.2 [Company Letterhead] May [•], 2020 [Full Name] [Address] Dear [First Name]: This letter memorializes the understanding between you and Select Energy Services, LLC, a Delaware limited liability company (the “Company”)[ and Rockwater Energy Solutions Administrative Services, LLC, a Delaware limited liability company, (“Rockwater Services”)]1 regarding your compensation for your employme

May 14, 2020 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 8, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 14, 2020 EX-10.1

Second Amendment to Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.1 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed May 14, 2020 (File No. 001-38066)).

Exhibit 10.1 SECOND AMENDMENT TO SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN WHEREAS, Select Energy Services, Inc. (the “Company”) maintains the Select Energy Services, Inc. 2016 Equity Incentive Plan (the “2016 Equity Incentive Plan”); and WHEREAS, the Company desires to amend the 2016 Equity Incentive Plan in certain respects; and WHEREAS, the Board of Directors of the Company has au

May 6, 2020 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 5, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commissio

May 6, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066 SEL

May 6, 2020 EX-99.1

Select Energy Services Reports First Quarter 2020 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports First Quarter 2020 Financial Results And Operational Updates Revenue of $278 million and cash flow from operations of $47 million generated during the first quarter of 2020 $114 million of cash, no debt outstanding and $295 million of total liquidity available at the end of the first quarter of 2020 Took immediate actions in the quarter to respond to rap

May 6, 2020 EX-10.2

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement – Adjusted Free Cash Flow – under the Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.2 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 6, 2020 (File No. 001-38066)).

Exhibit 10.2 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE – ADJUSTED FREE CASH FLOW Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the “Plan”), Select Energy Services, Inc. (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”) the nu

May 6, 2020 EX-10.3

Form of Performance Share Unit Grant Notice and Performance Share Unit Agreement – Return on Assets – under the Select Energy Services, Inc. 2016 Equity Incentive Plan (incorporated by reference herein to Exhibit 10.3 to Select Energy Services, Inc.’s Quarterly Report on Form 10-Q, filed May 6, 2020 (File No. 001-38066)).

Exhibit 10.3 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT GRANT NOTICE – RETURN ON ASSETS Pursuant to the terms and conditions of the Select Energy Services, Inc. 2016 Equity Incentive Plan, as amended from time to time (the “Plan”), Select Energy Services, Inc. (the “Company”) hereby grants to the individual listed below (“you” or the “Participant”) the number of

May 1, 2020 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 2) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

April 8, 2020 DEFA14A

WTTR / Select Energy Services, Inc. DEFA14A - - SCHEDULE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defi

April 3, 2020 EX-99.1

SELECT ENERGY SERVICES PROVIDES OPERATIONAL UPDATES AND STRATEGIC ACTIONS IN RESPONSE TO CURRENT MARKET CONDITIONS

Exhibit 99.1 News Release Contacts: Select Energy Services Chris George - VP, Investor Relations & Treasurer (713) 296-1073 FOR IMMEDIATE RELEASE [email protected] Dennard Lascar Investor Relations Ken Dennard / Lisa Elliott 713-529-6600 [email protected] SELECT ENERGY SERVICES PROVIDES OPERATIONAL UPDATES AND STRATEGIC ACTIONS IN RESPONSE TO CURRENT MARKET CONDITIONS HOUSTON, TX –

April 3, 2020 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 31, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Commis

March 27, 2020 DEF 14A

Definitive Proxy Statement on Schedule 14A for our 2020 annual meeting of stockholders

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 27, 2020 DEFA14A

WTTR / Select Energy Services, Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

February 25, 2020 POS AM

WTTR / Select Energy Services, Inc. POS AM - - POS AM

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on February 25, 2020 Registration No.

February 25, 2020 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019. OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-38

February 25, 2020 EX-21

List of subsidiaries of Select Energy Services, Inc.

Exhibit 21.1 Subsidiaries of Select Energy Services, Inc. Entity State of Formation SES Holdings, LLC Delaware Select Energy Services, LLC Delaware Peak Oilfield Services, LLC Texas Rockwater Energy Solutions, LLC Delaware Tidal Logistics, Inc. Texas

February 25, 2020 EX-10.22

First Amendment to Employment Agreement between Paul Pistono, Rockwater Energy Solutions, LLC and Rockwater Energy Solutions Administrative Services, LLC, dated February 21, 2020 (incorporated by reference herein to Exhibit 10.22 to Select Energy Services, Inc.’s Annual Report on Form 10-K, filed February 25, 2020 (File No. 001-38066)).

Exhibit 10.22 FIRST AMENDMENT TO EMPLOYMENT AGREEMENT This First Amendment (this “Amendment”) to the Employment Agreement by and between Rockwater Energy Solutions, LLC (f/k/a Rockwater Energy Solutions, Inc., “Rockwater”) and Paul Pistono (“Executive”), dated September 4, 2012 (the “Employment Agreement”), is hereby entered into by Rockwater, Rockwater Energy Solutions Administrative Services, LL

February 25, 2020 EX-4.6

Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, amended (incorporated by reference herein to Exhibit 4.6 to Select Energy Services, Inc.’s Annual Report on Form 10-K, filed February 25, 2020 (File No. 001-38066)).

EXHIBIT 4.6 Description of Securities Registered Under Section 12 of the Securities Exchange Act of 1934, as amended The following description of the capital stock of Select Energy Services, Inc. (the “Company,” “we,” “us,” and “our) is based upon our Fourth Amended and Restated Certificate of Incorporation and our Second Amended and Restated Bylaws, which we refer to as our “amended and restated

February 25, 2020 EX-10.20

First Amendment to Employment Agreement between Holli Ladhani, Rockwater Energy Solutions, LLC and Select Energy Services, LLC, dated February 21, 2020 (incorporated by reference herein to Exhibit 10.20 to Select Energy Services, Inc.’s Annual Report on Form 10-K, filed February 25, 2020 (File No. 001-38066)).

Exhibit 10.20 FIRST AMENDMENT TO EMPLOYMENT AGREEMENT This First Amendment (this “Amendment”) to the Employment Agreement by and between Rockwater Energy Solutions, LLC (f/k/a Rockwater Energy Solutions, Inc., “Rockwater”) and Holli Ladhani (formerly Holli Nichols) (“Executive”), dated June 1, 2011 (the “Employment Agreement”), is hereby entered into by Rockwater, Select Energy Services, LLC, a De

February 24, 2020 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 24, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

February 24, 2020 EX-99.1

Select Energy Services Reports Fourth Quarter And Fiscal Year 2019 Financial Results And Operational Updates

Exhibit 99.1 Select Energy Services Reports Fourth Quarter And Fiscal Year 2019 Financial Results And Operational Updates Generated operating cash flow of $61.7 million in the fourth quarter of 2019 and $203.9 million for fiscal year 2019 Began operations of new Northern Delaware pipeline system in New Mexico late in the fourth quarter of 2019 Repurchased 0.66 million shares of Class A common stoc

February 14, 2020 POSASR

As filed with the Securities and Exchange Commission on February 14, 2020

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on February 14, 2020 Registration No.

January 24, 2020 EX-10.1

Global Amendment to Performance Share Unit Grant Notices and Agreements (incorporated by reference herein to Exhibit 10.1 to Select Energy Services, Inc.’s Current Report on Form 8-K, filed January 24, 2020 (File No. 001-38066)).

Exhibit 10.1 SELECT ENERGY SERVICES, INC. 2016 EQUITY INCENTIVE PLAN GLOBAL AMENDMENT TO PERFORMANCE SHARE UNIT GRANT NOTICES AND AGREEMENTS This Global Amendment to Performance Share Unit Grant Notices and Agreements (this “Amendment”) is hereby adopted by Select Energy Services, Inc., a Delaware corporation (the “Company”), as of January 22, 2020 (the “Effective Date”). Capitalized terms used bu

January 24, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 22, 2020 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

December 19, 2019 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 18, 2019 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Com

December 19, 2019 EX-99.1

Select Energy Services Announces John D. Schmitz's Transition To Non-Executive Chairman

Exhibit 99.1 Select Energy Services Announces John D. Schmitz's Transition To Non-Executive Chairman HOUSTON, Dec. 19, 2019 /PRNewswire/ - Select Energy Services, Inc. (NYSE: WTTR) ("Select" or "the Company"), a leading provider of water management and chemical solutions to the U.S. unconventional oil and gas industry, today announced that John D. Schmitz will transition from Executive Chairman of

November 7, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38066

November 6, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 6, 2019 SELECT ENERGY SERVICES, INC. (Exact name of registrant as specified in its charter) Delaware 001-38066 81-4561945 (State or Other Jurisdiction of Incorporation) (Comm

November 6, 2019 EX-99.1

Select Energy Services Reports Third Quarter 2019 Financial Results And Operational Updates

Select Energy Services Reports Third Quarter 2019 Financial Results And Operational Updates Increased quarterly revenue 2% sequentially to $329.

October 9, 2019 SC 13D/A

WTTR / Select Energy Services, Inc. / B-29 Gp, Llc - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) Select Energy Services, Inc. (Name of Issuer) Class A Common Stock, par value $0.01 per share (Title of Class of Securities) 641119 102 (CUSIP Number) 1233 W. Loop South, Suite 1400 Houston, TX 77027 (713) 235-9500 (Name, Address and Telephone Nu

September 27, 2019 SC 13D

WTTR / Select Energy Services, Inc. / B-29 Gp, Llc - SC 13D Activist Investment

SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. ) Select Energy Services, Inc. (Name of Issuer) Class A Common Stock, par value $0.01 per share (Title of Class of Securities) 641119 102 (CUSIP Number) 1233 W. Loop South, Suite 1400 Houston, TX 77027 (713) 235-9500 (Name, Address and Telephone Numbe

August 7, 2019 EX-99.2

THOMSON REUTERS

Exhibit 99.2 THOMSON REUTERS FINAL TRANSCRIPT Q2 2019 Select Energy Services Inc Earnings Call EVENT DATE/TIME: AUGUST 07, 2019 / 2:00PM GMT THOMSON REUTERS | Contact Us ©2019 Thomson Reuters. All rights reserved. Republication or redistribution of Thomson Reuterscontent, including by framing or similarmeans, is prohibited without the prior written consent of Thomson Reuters. 'Thomson Reuters' and

August 7, 2019 EX-99.1

Select Energy Services Reports Second Quarter 2019 Financial Results And Operational Updates

Select Energy Services Reports Second Quarter 2019 Financial Results And Operational Updates Generated Operating Cash Flow of $38.

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