MNR insider holdings 13,728,593 after tax withholding event

Rhea-AI Filing Summary

Mach Natural Resources LP (MNR) insider Tom L. Ward reported a Form 4 for a tax-related transaction. On 10/28/2025, the issuer withheld 10,722 common units at $12.46 upon the vesting of phantom units (Transaction Code F).

Following the withholding, direct holdings were 13,728,593 common units. Indirect holdings include 13,218,411 units held by the Tom L. Ward 1992 Revocable Trust and 421,100 units held by Mach Resources LLC. Ward is identified as a Director, 10% Owner, and an Officer; the remarks note he is CEO of the general partner.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider WARD TOM L.

Role See Remarks

Type	Security	Shares	Price	Value
Tax Withholding	Common Units	10,722	$12.46	$134K
holding	Common Units	--	--	--
holding	Common Units	--	--	--

Holdings After Transaction: Common Units — 13,728,593 shares (Direct); Common Units — 13,218,411 shares (Indirect, Held by Tom L. Ward 1992 Revocable Trust)

Footnotes (1)

1. The Reporting Person is the Trustee of the Tom L. Ward 1992 Revocable Trust (the "Trust"). By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by the Trust, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly, or indirectly. The Reporting Person exercises control over Mach Resources LLC ("Mach Resources"). Mach Resources is owned 50.5% by Tom L. Ward through the Trust and 49.5% by WCT Resources LLC which is owned by certain trusts affiliated with Mr. Ward for which an employee of Mach Resources is trustee. By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by Mach Resources, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly. The issuer withheld units to satisfy the tax withholding obligations associated with the vesting of phantom units.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

WARD TOM L.

(Last) (First) (Middle)

14201 WIRELESS WAY,

SUITE 300

(Street)

OKLAHOMA CITY OK 73134

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MACH NATURAL RESOURCES LP [ MNR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)	X	Other (specify below)
	See Remarks		See Remarks

3. Date of Earliest Transaction (Month/Day/Year)
10/28/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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								13,218,411	I	Held by Tom L. Ward 1992 Revocable Trust(1)
Common Units								421,100	I	Held by Mach Resources LLC(2)
Common Units(3)	10/28/2025		F		10,722	D	$12.46	13,728,593	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		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: 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. The Reporting Person is the Trustee of the Tom L. Ward 1992 Revocable Trust (the "Trust"). By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by the Trust, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly, or indirectly.

2. The Reporting Person exercises control over Mach Resources LLC ("Mach Resources"). Mach Resources is owned 50.5% by Tom L. Ward through the Trust and 49.5% by WCT Resources LLC which is owned by certain trusts affiliated with Mr. Ward for which an employee of Mach Resources is trustee. By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by Mach Resources, but the Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

3. The issuer withheld units to satisfy the tax withholding obligations associated with the vesting of phantom units.

Remarks:

The Reporting Person is Chief Executive Officer of Mach Natural Resources 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.

	/s/ Michael E. Reel, as attorney-in-fact for the Reporting Person	10/30/2025
	** 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 Number.

FAQ

What transaction did MNR insider Tom L. Ward report on Form 4?

The issuer withheld 10,722 common units at $12.46 to cover taxes upon vesting of phantom units (Code F).

What are Tom L. Ward’s direct holdings in MNR after the transaction?

Direct holdings were 13,728,593 common units following the reported transaction.

What indirect MNR holdings are reported for Tom L. Ward?

Indirect holdings include 13,218,411 units held by the Tom L. Ward 1992 Revocable Trust and 421,100 units held by Mach Resources LLC.

What does Form 4 Transaction Code F signify for MNR?

Code F indicates the issuer withheld shares to satisfy tax obligations related to an equity award vesting.

What roles does Tom L. Ward hold relative to MNR?

He is listed as a Director, 10% Owner, and Officer; remarks state he is CEO of the general partner.