Sec Form 4 Filing - Source Energy Permian II, LLC @ Sitio Royalties Corp. - 2025-08-19

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

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1. Name and Address of Reporting Person Source Energy Permian II, LLC 2. Issuer Name and Ticker or Trading Symbol Sitio Royalties Corp. [ STR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O OAKTREE CAPITAL MANAGEMENT, L.P., 333 SOUTH GRAND AVENUE, 28TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 08/19/2025 (Street) LOS ANGELES, CA90071 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 Class A Common Stock 08/19/2025 S 10,431 D 0 I See footnote ( 2 ) Class C Common Stock 08/19/2025 S 15,443,610 ( 3 ) D 0 I See footnote ( 2 )

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 Sitio Royalties Operating Partnership, LP Units ( 3 ) 08/19/2025 S 15,443,610 ( 3 ) ( 3 ) Class A Common Stock 15,443,610 ( 3 ) 0 I See footnote ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Source Energy Permian II, LLC C/O OAKTREE CAPITAL MANAGEMENT, L.P. 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES, CA90071 X Sierra Energy Royalties, LLC 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES, CA90071 X Source Energy Partners, LLC 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES, CA90071 X OCM FIE, LLC 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES, CA90071 X OAKTREE CAPITAL MANAGEMENT LP 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES, CA90071 X Oaktree Capital Holdings, LLC 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES, CA90071 X Oaktree Capital Group Holdings GP, LLC 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES, CA90071 X Signatures /s/ See Signatures Included in Exhibit 99.1 08/21/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )In connection with merger of the Issuer with Viper Energy, Inc., the reporting person disposed of all issuer equity securities in exchange for the merger consideration pursuant to the Agreement and Plan of Merger dated as of June 2, 2025, by and among the parties thereto. ( 2 )The reported securities were directly held by (i) Source Energy Permian II, LLC ("Source"), as the direct holder of securities, (ii) Sierra Energy Royalties, LLC ("Sierra") (iii) Source Energy Partners, LLC ("Source Energy") (iv) OCM FIE, LLC ("FIE"). Oaktree Capital Management L.P., Oaktree Capital Holdings, LLC and Oaktree Capital Group Holdings GP LLP are the indirect managers of Source, Sierra, Source Energy, and FIE, but each of the foregoing disclaim beneficial ownership of the reported securities except to the extent of any pecuniary interest therein. ( 3 )Each Sitio Royalties Operating Partnership, LP Unit, together with a share of Class C Common Stock, is exchangeable, for no additional consideration, into one share of Class A Common Stock.

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).

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