Sec Form 4 Filing - van Kempen Wouter T. @ CIVITAS RESOURCES, INC. - 2026-01-30

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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person van Kempen Wouter T. 2. Issuer Name and Ticker or Trading Symbol CIVITAS RESOURCES, INC. [ CIVI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Interim CEO (Last) (First) (Middle) 555 17TH STREET, SUITE 3700 3. Date of Earliest Transaction (MM/DD/YY) 01/30/2026 (Street) DENVER, CO80202 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction 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 Common Stock 01/30/2026 D 145,241 D 0 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other van Kempen Wouter T. 555 17TH STREET, SUITE 3700 DENVER, CO80202 X Interim CEO Signatures By: /s/ Adrian Milton, Attorney-in-Fact for Wouter T. van Kempen 01/30/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Pursuant to the Agreement and Plan of Merger, dated as of November 2, 2025 (the "Merger Agreement"), by and among SM Energy Company ("SM Energy"), Cars Merger Sub, Inc., a direct wholly owned subsidiary of SM Energy ("Merger Sub"), and Civitas Resources, Inc. ("Civitas"), (i) Merger Sub was merged with and into Civitas, with Civitas surviving as a wholly owned subsidiary of SM Energy (the "first merger" and the surviving entity, the "first surviving corporation"), and (ii) immediately following the first merger (the "Effective Time"), the first surviving corporation was merged with and into SM Energy, with SM Energy continuing as the surviving corporation and each share of Civitas' common stock, par value $0.01 per share ("Civitas common stock"), was converted into the right to receive 1.45 shares of common stock, par value $0.01 per share, of SM Energy ("SM Energy common stock"). ( 2 )On January 29, 2026, the day prior to the Effective Time, the closing price of one share of SM Energy common stock on the New York Stock Exchange was $18.87. Pursuant to the Merger Agreement, each restricted stock unit of Civitas ("Civitas RSU Award") that was outstanding immediately prior to the Effective Time was assumed by SM Energy and converted into a time-based restricted stock unit award of SM Energy equal to the product obtained by multiplying (i) the number of shares of Civitas common stock subject to such Civitas RSU Award immediately prior to the Effective Time and (ii) 1.45, rounded up to the nearest whole number of shares and generally subject to the same terms and conditions (including as to vesting and forfeiture) as were applicable to such Civitas RSU Award immediately prior to the Effective Time. ( 3 )Pursuant to the Merger Agreement, each deferred stock unit of Civitas ("Civitas DSU Award") that was outstanding immediately prior to the Effective Time, pursuant to the Merger Agreement and the terms of the Civitas DSU Award, became fully vested and was assumed by SM Energy and converted into a time-based deferred stock unit award of SM Energy equal to the product obtained by multiplying (i) the number of shares of Civitas common stock subject to such Civitas DSU Award immediately prior to the Effective Time and (ii) 1.45, rounded up to the nearest whole number of shares and generally subject to the same terms and conditions as were applicable to such Civitas DSU Award immediately prior to the Effective Time.

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.