KAYNE ANDERSON CAPITAL ADVISORS LP - 09 Feb 2026 Form 4 Insider Report for MACH NATURAL RESOURCES LP (MNR)

Role: 10%+ Owner
Signature: /s/ Michael O'Neil
Issuer symbol: MNR
Transactions as of: 09 Feb 2026
Net transactions value: -$3,313,084
Form type: 4
Filing time: 11 Feb 2026, 14:19:56 UTC
Previous filing: 22 Sep 2025
SEC: View on sec.gov

Reporting Owners (2)

Name	Relationship	Address	Signature	Signature date	CIK
KAYNE ANDERSON CAPITAL ADVISORS LP	10%+ Owner	2121 AVENUE OF THE STARS, 9TH FLOOR, LOS ANGELES	/s/ Michael O'Neil	11 Feb 2026	0000949615
Sabinal Energy Operating, LLC	10%+ Owner	717 TEXAS AVENUE, SUITE 2200, HOUSTON	/s/ Oren Marouni	11 Feb 2026	0002083178

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MNR	Common Units	Other	$3,313,084	-227,547	-1.2%	$14.56	18,960,034	09 Feb 2026	Sabinal Energy Operating, LLC	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	As part of the purchase and sale agreement between Mach Natural Resources ("MNR") and Sabinal Energy Operating, LLC ("Sabinal") (the "PSA"), MNR issued Sabinal 19,187,581 Common Units (the "Sabinal Common Units"), as previously disclosed in the Form 3 filed on 9/22/25. In accordance with the final purchase price adjustment mechanics contained in the PSA, Sabinal has agreed to deliver to MNR 227,547 Sabinal Common Units.
F2	The reported units are held by Sabinal Energy Operating, LLC, a portfolio company of a private investment fund managed by Kayne Anderson Capital Advisors, L.P.

Content

As part of the purchase and sale agreement between Mach Natural Resources ("MNR") and Sabinal Energy Operating, LLC ("Sabinal") (the "PSA"), MNR issued Sabinal 19,187,581 Common Units (the "Sabinal Common Units"), as previously disclosed in the Form 3 filed on 9/22/25. In accordance with the final purchase price adjustment mechanics contained in the PSA, Sabinal has agreed to deliver to MNR 227,547 Sabinal Common Units.

The reported units are held by Sabinal Energy Operating, LLC, a portfolio company of a private investment fund managed by Kayne Anderson Capital Advisors, L.P.