Sec Form 3 Filing - KING J LUTHER JR @ MorningStar Partners, L.P. - 2023-01-26

FORM 3 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 KING J LUTHER JR 2. Issuer Name and Ticker or Trading Symbol MorningStar Partners, L.P. [ TXO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) X __ Other (specify below) See Remarks (Last) (First) (Middle) 400 WEST 7TH STREET 3. Date of Earliest Transaction (MM/DD/YY) 01/26/2023 (Street) FORT WORTH, TX76102 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 Units 11,656,604 D Common Units 37,880,497 I See footnotes( 1 )( 2 )( 3 )

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 Series 5 Preferred Units ( 4 ) ( 4 ) 10/15/2024 Common Units 6,931,053 D Series 5 Preferred Units ( 4 ) ( 4 ) 10/15/2024 Common Units 26,992,105 I See footnotes( 1 )( 2 )( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other KING J LUTHER JR 400 WEST 7TH STREET FORT WORTH, TX76102 X X See Remarks Signatures /s/ Brent W. Clum, Attorney-in-fact 01/26/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The securities reported includes (i) 17,259,241 common units and 12,863,158 common units underlying series 5 preferred units held by LKCM Investment Partnership, L.P. and (ii) 20,621,256 common units and 14,128,947 common units underlying series 5 preferred units held by PDLP Morningstar, LLC. ( 2 )LKCM Investment Partnership GP, LLC is the general partner of LKCM Investment Partnership, L.P. LKCM Private Discipline Management, L.P. is the sole holder of management shares of LKCM Private Discipline Master Fund, SPC. PDLP Morningstar, LLC is a wholly owned subsidiary of LKCM Private Discipline Master Fund, SPC. Luther King Capital Management Corporation serves as the investment adviser to each of LKCM Investment Partnership, L.P. and LKCM Private Discipline Master Fund, SPC. J. Luther King, Jr. serves as the President of Luther King Capital Management Corporation. ( 3 )Luther King Capital Management Corportion has voting and investment power over the securities beneficially owned by each of LKCM Investment Partnership GP, LLC and LKCM Private Discipline Management L.P. Accordingly, each of J. Luther King and Luther King Capital Management Corporation may be deemed to share beneficial ownership of the common units held by each of LKCM Investment Partnership, L.P. and PDLP Morningstar, LLC, but each disclaims beneficial ownership of such common units except to the extent of their pecuniary interest therein. ( 4 )Immediately prior to the closing of the Issuer's initial public offering, the Issuer's series 5 preferred units will automatically convert into common units of the Issuer.

Remarks: The Reporting Person is a Director of TXO Energy GP, LLC, the general partner of the Issuer (the "General Partner"). The Issuer is managed by the directors and executive officers of the General Partner.Exhibit 24 - Power of Attorney.

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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