[SCHEDULE 13G] MACH NATURAL RESOURCES LP SEC Filing

Rhea-AI Filing Summary

Kayne Anderson Capital Advisors, L.P. reported beneficial ownership of 19,187,581 common units of MACH NATURAL RESOURCES LP, representing 11.41% of the outstanding class. The filing states Kayne Anderson has sole voting and sole dispositive power over all 19,187,581 units. The filing is submitted on Schedule 13G for the issuer with CUSIP 55445L100 and repeats issuer and reporting addresses. The filing identifies the filer as an investment adviser organized in Delaware and includes a certification that the securities were not acquired to change or influence control of the issuer. Several group- and subsidiary-related items are marked Not Applicable.

Positive

• Significant stake disclosed: Ownership of 19,187,581 units representing 11.41% of the class.
• Clear voting/dispositive control: Reporting person has sole voting and sole dispositive power over all reported units.
• Declared passive intent: Certification states the securities were not acquired to change or influence control, consistent with Schedule 13G treatment.

Negative

• None.

Insights

Financial Analyst

TL;DR: A registered investment adviser discloses an 11.41% passive stake with full voting and dispositive authority over 19.19 million units.

The Schedule 13G shows Kayne Anderson Capital Advisors, L.P. holds 19,187,581 common units (11.41%) of MACH NATURAL RESOURCES LP with sole voting and dispositive power. The filer is identified as an investment adviser (type IA) organized in Delaware. The filing includes a certification that the holdings were not acquired to influence control, consistent with a Schedule 13G disclosure. Items regarding groups, subsidiaries, and ownership on behalf of others are indicated as not applicable or not required. This is a material ownership disclosure but contains no financial performance data or transaction-level detail beyond the position size and voting/dispositive control.

Corporate Governance Expert

TL;DR: Kayne Anderson reports sole control of an 11.41% stake and certifies no intent to affect issuer control, per Schedule 13G rules.

The filing documents that Kayne Anderson Capital Advisors, L.P. exercises sole voting and dispositive power over all reported units, which is relevant for shareholder influence and voting tallies. The explicit certification that the securities were not acquired to change or influence control clarifies the filer is using the passive disclosure route under Schedule 13G rather than an active Schedule 13D. No group affiliations, subsidiary acquisitions, or arrangements affecting control are reported. The filing therefore notifies investors and the issuer of a significant passive holder with full voting authority over its position.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

MACH NATURAL RESOURCES LP

(Name of Issuer)

COMMON UNITS

(Title of Class of Securities)

55445L100

(CUSIP Number)

09/16/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 55445L100

1

Names of Reporting Persons

KAYNE ANDERSON CAPITAL ADVISORS LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 19,187,581.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 19,187,581.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

19,187,581.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

11.41 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: MACH NATURAL RESOURCES LP
(b)	Address of issuer's principal executive offices: 14201 Wireless Way, Suite 300, Oklahoma City, Oklahoma, 73134
Item 2.
(a)	Name of person filing: Kayne Anderson Capital Advisors, L.P.
(b)	Address or principal business office or, if none, residence: 2121 Avenue of the Stars, Ninth Floor Los Angeles, CA 90067
(c)	Citizenship: Kayne Anderson Capital Advisors, L.P. is a Delaware limited partnership
(d)	Title of class of securities: COMMON UNITS
(e)	CUSIP No.: 55445L100
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: Kayne Anderson Capital Advisors, L.P. Managed Accounts 19,187,581
(b)	Percent of class: 11.41%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 19,187,581
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 19,187,581
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

KAYNE ANDERSON CAPITAL ADVISORS LP

Signature:	/s/ MICHAEL O NEIL
Name/Title:	Michael O Neil, Chief Compliance Officer
Date:	09/22/2025

FAQ

What stake does Kayne Anderson Capital Advisors hold in MACH NATURAL RESOURCES LP (MNR)?

Kayne Anderson reports beneficial ownership of 19,187,581 common units, representing 11.41% of the class.

Does Kayne Anderson have voting control over the reported MNR units?

Yes. The filing states Kayne Anderson has sole voting power and sole dispositive power over all 19,187,581 units.

What type of SEC filing was submitted for MNR and why does it matter?

A Schedule 13G was filed, which is used for passive investors reporting beneficial ownership exceeding 5% and includes a certification of non-control intent.

Is Kayne Anderson part of a group or acting on behalf of a subsidiary in this filing?

No. Items for group membership and subsidiary acquisition are marked Not Applicable in the filing.

Where can one find the issuer and filer addresses in the filing?

Issuer principal office: 14201 Wireless Way, Suite 300, Oklahoma City, OK 73134. Filer business address: 2121 Avenue of the Stars, Ninth Floor, Los Angeles, CA 90067.