FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                       
1. Name and Address of Reporting Person * SCF Partners, Inc. 2. Issuer Name and Ticker or Trading Symbol Select Energy Services, Inc. [ WTTR ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    __X__ 10% Owner
_____ Officer (give title below)    __X__ Other (specify below)
Member of Group
(Last)          (First)          (Middle)
600 TRAVIS STREET, SUITE 6600		 3. Date of Earliest Transaction (MM/DD/YYYY)
3/3/2023
(Street)
HOUSTON, TX 77002
(City)        (State)        (Zip)
 4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock  3/3/2023    J    100000  D $7.8038  5613442  I  SCF-VI, L.P. (1)
Class A Common Stock  3/6/2023    J    8000  D $7.8149  5605442  I  SCF-VI, L.P. (1)
Class A Common Stock                 5154217  I  SCF-VII, L.P. (1)
Class A Common Stock                 1043097  I  SCF-VII(A), L.P. (1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
(1)  SCF Partners, Inc. (formerly named LE Simmons & Associates Inc), a Delaware corporation (SCFP), manages each of SCFVI, GP, Limited Partnership (SCFVIGP), SCFVII, GP Limited Partnership (SCFVIIGP) and SCF-VII(A), GP Limited Partnership (SCFVIIAGP), each of which are Delaware limited partnerships. Additionally, SCFVIGP is the sole general partner of SCF-VI, SCFVIIGP is the sole general partner of SCF-VII, and SCF-VIIAGP is the sole general partner of SCF-VIIA. Collectively, SCFP, SCFVIGP, SCFVIIGP, SCFVIIAGP, SCF-VI, SCF-VII and SCF-VIIA are the reporting entities. Based on the reporting person's affiliation with the reporting entities, SCFP may be deemed to beneficially own all of the shares of common stock of the registrant beneficially owned or deemed to be beneficially owned by the reporting entities.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
SCF Partners, Inc.
600 TRAVIS STREET
SUITE 6600
HOUSTON, TX 77002
X
Member of Group
SCF VI LP
600 TRAVIS, SUITE 6600
HOUSTON, TX 77002		 X X

SCF-VI, G.P., Limited Partnership
600 TRAVIS, SUITE 6600
HOUSTON, TX 77002		 X X

SCF-VII, L.P.
600 TRAVIS, SUITE 6600
HOUSTON, TX 77002		 X X

SCF-VII, G.P., Limited Partnership
600 TRAVIS, SUITE 6600
HOUSTON, TX 77002		 X X

SCF-VII(A), L.P.
600 TRAVIS STREET
SUITE 6600
HOUSTON, TX 77002
X
Member of Group
SCF-VII(A), G.P., Limited Partnership
600 TRAVIS STREET
SUITE 6600
HOUSTON, TX 77002
X
Member of Group

Signatures
Anthony F. DeLuca/Officer of Reporting Person 3/7/2023
**Signature of Reporting Person Date

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 control number.
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