# EDGAR Filing Document

**Accession Number:** 0001693256
**File Stem:** 0000950142-26-001112
**Filing Date:** 2026-4
**Character Count:** 15463
**Document Hash:** 876b6a52a743dddcb04fbf4d56f23ad4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950142-26-001112.hdr.sgml**: 20260410

**ACCESSION NUMBER**: 0000950142-26-001112

**CONFORMED SUBMISSION TYPE**: 4/A

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260408

**FILED AS OF DATE**: 20260410

**DATE AS OF CHANGE**: 20260410

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Crestview Partners II GP, L.P.
- **CENTRAL INDEX KEY:** 0001505639

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38066
- **FILM NUMBER:** 26855519

**BUSINESS ADDRESS:**
- **STREET 1:** 590 MADISON AVENUE
- **STREET 2:** 42ND FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 906-0723

**MAIL ADDRESS:**
- **STREET 1:** 590 MADISON AVENUE
- **STREET 2:** 42ND FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Crestview Advisors, L.L.C.
- **CENTRAL INDEX KEY:** 0001559054

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38066
- **FILM NUMBER:** 26855516

**BUSINESS ADDRESS:**
- **STREET 1:** 590 MADISON AVENUE
- **STREET 2:** 42ND FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** 212-906-0700

**MAIL ADDRESS:**
- **STREET 1:** 590 MADISON AVENUE
- **STREET 2:** 42ND FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Crestview Partners II SES Investment, LLC
- **CENTRAL INDEX KEY:** 0001699719

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38066
- **FILM NUMBER:** 26855517

**BUSINESS ADDRESS:**
- **STREET 1:** C/O CRESTVIEW PARTNERS
- **STREET 2:** 667 MADISON AVENUE, 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10065
- **BUSINESS PHONE:** 212-906-0700

**MAIL ADDRESS:**
- **STREET 1:** C/O CRESTVIEW PARTNERS
- **STREET 2:** 667 MADISON AVENUE, 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10065

**FORMER NAME:**
- **FORMER CONFORMED NAME:** Crestview Partners II SES Investments, LLC
- **DATE OF NAME CHANGE:** 20170303
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Crestview Partners II SES Investment B, LLC
- **CENTRAL INDEX KEY:** 0001699717

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38066
- **FILM NUMBER:** 26855518

**BUSINESS ADDRESS:**
- **STREET 1:** C/O CRESTVIEW PARTNERS
- **STREET 2:** 667 MADISON AVENUE, 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10065
- **BUSINESS PHONE:** 212-906-0700

**MAIL ADDRESS:**
- **STREET 1:** C/O CRESTVIEW PARTNERS
- **STREET 2:** 667 MADISON AVENUE, 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10065
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Select Water Solutions, Inc.
- **CENTRAL INDEX KEY:** 0001693256
- **STANDARD INDUSTRIAL CLASSIFICATION:** OIL, GAS FIELD SERVICES, NBC [1389]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 814561945
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1820 NORTH I-35
- **CITY:** GAINESVILLE
- **STATE:** TX
- **ZIP:** 76240
- **BUSINESS PHONE:** (940) 668-1818

**MAIL ADDRESS:**
- **STREET 1:** 1820 NORTH I-35
- **CITY:** GAINESVILLE
- **STATE:** TX
- **ZIP:** 76240

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Select Energy Services, Inc.
- **DATE OF NAME CHANGE:** 20161227

## Ex-99

**EXHIBIT 99**

**Joint Filer Information**

Each of the following joint filers has designated **Crestview Partners II GP, L.P.** as the "**Designated Filer**" for purposes of the attached Form 4:

1. Crestview Partners II SES Investment B, LLC c/o Crestview Partners 590 Madison Avenue, 42nd floor New York, NY 10022

2. Crestview Partners II SES Investment, LLC c/o Crestview Partners 590 Madison Avenue, 42nd floor New York, NY 10022

3. Crestview Advisors, L.L.C. c/o Crestview Partners 590 Madison Avenue, 42nd floor New York, NY 10022

**Date of Event Requiring Statement:** April 8, 2026

**Issuer Name and Ticker or Trading Symbol:** Select Water Solutions, Inc. [WTTR]

---

| | |
|:---|:---|
| **CRESTVIEW PARTNERS II SES INVESTMENT B, LLC** | **CRESTVIEW PARTNERS II SES INVESTMENT B, LLC** |
| By: | /s/ Poojitha Manta |
|  | Name: Poojitha Manta |
|  | Title: Chief Compliance Officer |
| **CRESTVIEW PARTNERS II SES INVESTMENT, LLC** | **CRESTVIEW PARTNERS II SES INVESTMENT, LLC** |
| By: | /s/ Poojitha Manta |
|  | Name: Poojitha Manta |
|  | Title: Chief Compliance Officer |
| **CRESTVIEW ADVISORS, L.L.C.** | **CRESTVIEW ADVISORS, L.L.C.** |
| By: | /s/ Poojitha Manta |
|  | Name: Poojitha Manta |
|  | Title: Chief Compliance Officer |

---

Date: April 10, 2026

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4/A

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Crestview Partners II GP, L.P.<br><sub>(Last) (First) (Middle)</sub><br>C/O CRESTVIEW PARTNERS<br>590 MADISON AVENUE, 42ND FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-08 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Select Water Solutions, Inc. [ WTTR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Crestview Partners II SES Investment B, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O CRESTVIEW PARTNERS<br>590 MADISON AVENUE, 42ND FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-08 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Select Water Solutions, Inc. [ WTTR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Crestview Partners II SES Investment, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O CRESTVIEW PARTNERS<br>590 MADISON AVENUE, 42ND FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-08 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Select Water Solutions, Inc. [ WTTR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Crestview Advisors, L.L.C.<br><sub>(Last) (First) (Middle)</sub><br>C/O CRESTVIEW PARTNERS<br>590 MADISON AVENUE, 42ND FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-08 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Select Water Solutions, Inc. [ WTTR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class A Common Stock | 2026-04-08 |  | S<sup>(1)</sup> |  | 665983 | D | $15.12 | 3233212 | I | See Footnotes<sup>(4)(5)(8)</sup> |
| Class A Common Stock | 2026-04-08 |  | C<sup>(2)</sup> |  | 2430240 | A | <sup>(2)</sup> | 2430240 | I | See Footnotes<sup>(5)(7)(8)</sup> |
| Class B Common Stock | 2026-04-08 |  | D<sup>(2)(3)</sup> |  | 2430240 | D | <sup>(2)(3)</sup> | 13790861 | I | See Footnotes<sup>(5)(7)(8)</sup> |
| Class A Common Stock | 2026-04-08 |  | S |  | 2430240 | D | $15.12 | 0 | I | See Footnotes<sup>(5)(7)(8)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Common LLC Units | <sup>(1)(6)</sup> | 2026-04-08 |  | C |  |  | 2430240 | <sup>(1)(6)</sup> | <sup>(1)(6)</sup> | Class A Shares | 2430240 | <sup>(1)(6)</sup> | 13790861 | I | See Footnotes<sup>(5)(7)(8)</sup> |

---

### Footnotes:

(1) Reflects 569,760 shares of Class A Common Stock of the Issuer ("Class A Shares") sold by Crestview Partners II SES Investment B, LLC ("Crestview II SES B"), and 96,223 Class A Shares sold by Crestview Advisors, L.L.C.

(2) Reflects the redemption (the "Redemption") by the Reporting Persons of Common LLC Units ("Units") of SES Holdings, LLC ("SES Holdings"), a subsidiary of the Issuer, indirectly owned by Crestview Partners II SES Investment, LLC ("Crestview II SES") though SES Legacy Holdings, LLC ("Legacy Holdings").

(3) Reflects the cancellation for no consideration of a number shares of Class B Common Stock of the Issuer ("Class B Shares") indirectly owned by Crestview II SES though Legacy Holdings equal to the number of Units redeemed by the Reporting Persons pursuant to their terms in connection with the Redemption.

(4) Reflects 3,233,212 Class A Shares directly beneficially owned by Crestview II SES B.

(5) Represents Class B Shares indirectly beneficially owned by Crestview II SES (together with Crestview II SES B and Crestview Advisors, L.L.C., the "Crestview Entities") through Legacy Holdings.

(6) Represents Units of SES Holdings, indirectly owned by Crestview II SES through Legacy Holdings. The Units are redeemable by Legacy Holdings at any time in exchange for newly-issued Class A Shares on a one-for-one basis (subject to conversion rate adjustments for stock splits, stock dividends, reclassification and other similar transactions) (or, at the election of SES Holdings or the Issuer, cash in an amount equal to the Cash Election Value of such Class A Shares (as defined in the SES Holdings LLC Agreement to be the trailing 10-day VWAP of the Class A Shares)).

(7) Crestview Partners II GP, L.P. may be deemed to have beneficial ownership of the Class A Shares held by Crestview II SES B and Crestview Advisors, L.LC. and the Class B Shares and Common LLC Units of SES Holdings indirectly held by Crestview II SES. Crestview Partners II GP, L.P. exercises voting and dispositive power over the foregoing Class A Shares, Class B Shares and Common LLC Units held by the Crestview Entities, which decisions are made by the investment committee of Crestview Partners II GP, L.P. and the Chairman of the investment committee.

(8) Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.

**Remarks:**
Exhibit 99 - Joint Filer Information \\ This amendment is being filed to reflect that Robert V. Delaney, Jr. is not a member of the issuer's board of directors and to remove him as a filing person.

**Signature:** By: Crestview Partners II GP, L.P., the Designated Filer, by: Crestview, L.L.C., its general partner, by: /s/ Poojitha Mantha, Chief Compliance Officer  
**Date:** 2026-04-10

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**