SEC Form 4 · accession 0001213900-26-101024
MACH NATURAL RESOURCES LP · MNR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owners
William Wallace McMullen
Director · 10% Owner · Other
BAYOU CITY ENERGY MANAGEMENT LLC
10% Owner
Period of report
Sep 15, 2026
Accepted (ET)
Sep 17, 2026 · 5:11 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001980088
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Units | Sep 15, 2026 | P | 22,124 | $11.25 | A | 22,124 | D | |
| Common UnitsF1,F2 | Sep 15, 2026 | P | 12,390 | $11.30 | A | 74,872,307 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The price reported in Column 4 is a weighted average price. These common units were purchased by Bayou City Energy Management LLC ("BCEM") in multiple transactions at prices ranging from $11.28 to $11.30, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4.
- F2The reported common units are directly held 74,835,939 by BCE Mach Aggregator LLC ("BCE Aggregator") and 36,368 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, William W. McMullen may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.
Remarks
William W. McMullen is a Director 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.