MNR · Mach Natural Resources LP

On May 6, 2026, SIMLOG INC., VEPU Inc. and Mach Natural Resources LP (the "Issuer") entered into a settlement agreement and third amendment to membership interest purchase agreement, pursuant to which, among other things, 1,422,476 common units held by VEPU Inc. were retired and cancelled to reflect the final adjusted purchase price under that certain Membership Interest Purchase Agreement, dated as of July 9, 2025, by and among SIMLOG INC., VEPU Inc. and the Issuer.

These common units are held directly by VEPU Inc., which is wholly owned by IDI Investment S.a r.l., which is controlled by IKAV SICAV FIS SCA, whose general partner is IKAV General Partner S.a r.l., which is wholly owned by Institut fur Kapitalanlagen und Vesicherungslosungen GmbH, whose majority owner is Constantin von Wasserschleben. This statement is jointly filed by and on behalf each of the foregoing entities and Mr. von Wasserschleben. As such, each of the foregoing entities and Mr. von Wasserschleben may be deemed to share beneficial ownership of the securities held of record by VEPU Inc.

The reporting persons each disclaim beneficial ownership of the securities covered by this statement, except to the extent of the pecuniary interest of such reporting person in such securities. Each reporting person states that neither the filing of this statement nor anything herein shall be deemed an admission that such reporting person is, for purposes of Section 16 of the Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise, the beneficial owner of any securities covered by this statement.

The reporting persons may be deemed to be a member of a group with respect to the Issuer or securities of the Issuer for purposes of Section 13(d) or 13(g) of the Exchange Act. The reporting persons declare that neither the filing of this statement nor anything herein shall be construed as an admission that such persons are, for the purposes of Section 13(d) or 13(g) of the Exchange Act or any other purpose, a member of a group with respect to the Issuer or securities of the Issuer.

As previously disclosed in the Issuer's prospectus supplement dated April 6, 2026, filed with the U.S. Securities and Exchange Commission on April 8, 2026, certain selling unitholders completed a public underwritten offering of the Issuer's common units. The Tom L. Ward 1992 Revocable Living Trust (the "Trust") and WCT Resources LLC ("WCT Resources") each purchased 76,628 common units at a price to the public of $13.05 per unit.

The Reporting Person exercises control over WCT Resources which is owned by certain trusts affiliated with Mr. Ward. By virtue of the relationship, the Reporting Person may be deemed to have or share beneficial ownership of the securities held of record by WCT 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.

As previously disclosed in the Issuer's prospectus supplement dated April 6, 2026, filed with the U.S. Securities and Exchange Commission on April 8, 2026, certain selling unitholders completed a public underwritten offering of the Issuer's common units. The Tom L. Ward 1992 Revocable Living Trust (the "Trust") and WCT Resources LLC ("WCT Resources") each purchased 76,628 common units at a price to the public of $13.05 per unit.

The Reporting Person is the Trustee of 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.

These common units are held directly by VEPU Inc., which is wholly owned by IDI Investment S.a r.l., which is controlled by IKAV SICAV FIS SCA, whose general partner is IKAV General Partner S.a r.l., which is wholly owned by Institut fur Kapitalanlagen und Vesicherungslosungen GmbH, whose majority owner is Constantin von Wasserschleben. This statement is jointly filed by and on behalf each of the foregoing entities and Mr. von Wasserschleben. As such, each of the foregoing entities and Mr. von Wasserschleben may be deemed to share beneficial ownership of the securities held of record by VEPU Inc.

The reporting persons each disclaim beneficial ownership of the securities covered by this statement, except to the extent of the pecuniary interest of such reporting person in such securities. Each reporting person states that neither the filing of this statement nor anything herein shall be deemed an admission that such reporting person is, for purposes of Section 16 of the Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise, the beneficial owner of any securities covered by this statement.

The reporting persons may be deemed to be a member of a group with respect to Mach Natural Resources LP (the "Issuer") or securities of the Issuer for purposes of Section 13(d) or 13(g) of the Exchange Act. The reporting persons declare that neither the filing of this statement nor anything herein shall be construed as an admission that such persons are, for the purposes of Section 13(d) or 13(g) of the Exchange Act or any other purpose, a member of a group with respect to the Issuer or securities of the Issuer.

These common units are held directly by SIMLOG Inc., which is wholly owned by Simlog S.a r.l., which is controlled by IKAV SICAV FIS SCA, whose general partner is IKAV General Partner S.a r.l., which is wholly owned by Institut fur Kapitalanlagen und Vesicherungslosungen GmbH, whose majority owner is Mr. von Wasserschleben. This statement is jointly filed by and on behalf each of the foregoing entities and Mr. von Wasserschleben. As such, each of the foregoing entities and Mr. von Wasserschleben may be deemed to share beneficial ownership of the securities held of record by SIMLOG Inc.

The reporting persons each disclaim beneficial ownership of the securities covered by this statement, except to the extent of the pecuniary interest of such reporting person in such securities. Each reporting person states that neither the filing of this statement nor anything herein shall be deemed an admission that such reporting person is, for purposes of Section 16 of the Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise, the beneficial owner of any securities covered by this statement.

The reporting persons may be deemed to be a member of a group with respect to Mach Natural Resources LP (the "Issuer") or securities of the Issuer for purposes of Section 13(d) or 13(g) of the Exchange Act. The reporting persons declare that neither the filing of this statement nor anything herein shall be construed as an admission that such persons are, for the purposes of Section 13(d) or 13(g) of the Exchange Act or any other purpose, a member of a group with respect to the Issuer or securities of the Issuer.

On April 6, 2026, Mach Natural Resources LP (the "Company") entered into an underwriting agreement (the "Underwriting Agreement"), by and among the Company, Mach Natural Resources GP LLC, the general partner of the Company, the selling unitholders party thereto (the "Selling Unitholders", of which Sabinal Energy Operating, LLC is one) and Morgan Stanley & Co. LLC (the "Underwriter"), pursuant to which the Selling Unitholders agreed to sell to the Underwriter, and the Underwriter agreed to purchase from the Selling Unitholders, an aggregate of 9,000,000 common units representing limited partner interests ("Common Units") in the Company (such offering, the "Offering").

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.

These common units were purchased by Bayou City Energy Management LLC ("BCEM").

The price reported in Column 4 is a weighted average price. These common units were purchased by BCEM in multiple transactions at prices ranging from $13.535 to $13.65, 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 (the "SEC"), upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote (3) to this Form 4.

After the reported transactions, the reported common units are directly held 74,835,939 by BCE Mach Aggregator LLC ("BCE Aggregator") and 23,978 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

These common units were purchased by Bayou City Energy Management LLC ("BCEM").

After the reported transactions, the reported common units are directly held 74,835,939 by BCE Mach Aggregator LLC ("BCE Aggregator") and 23,978 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

These common units were purchased by Bayou City Energy Management LLC ("BCEM").

The price reported in Column 4 is a weighted average price. These common units were purchased by BCEM in multiple transactions at prices ranging from $13.99 to $14.00, 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 (the "SEC"), upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote (2) to this Form 4.

After the reported transactions, the reported common units are directly held 74,835,939 by BCE Mach Aggregator LLC ("BCE Aggregator") and 23,978 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased by the Reporting Person in multiple transactions at prices ranging from $13.99 to $14.15, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission (the "SEC"), 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.

The Issuer withheld units to satisfy tax withholding obligations associated with the Grant.

The Issuer withheld units to satisfy tax withholding obligations associated with the Grant.

Represents the grant of common units (the "Grant") of the Issuer under the Issuer's 2023 Long-Term Incentive Plan.

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.

Represents the grant of common units (the "Grant") of the Issuer under the Issuer's 2023 Long-Term Incentive Plan.

The reported securities represent phantom units. Each phantom unit represents the contingent right to receive one common unit of the Issuer upon vesting. The phantom units will vest on the first anniversary of the grant date, subject in each case to the continued service through such dates.

These common units were purchased by BCE-Mach Aggregator LLC ("BCE Aggregator").

The price reported in Column 4 is a weighted average price. These common units were purchased by BCE Aggregator in multiple transactions at prices ranging from $12.30 to $12.35, inclusive. The Reporting Persons undertakes 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 (3) to this Form 4.

After the reported transactions, the reported common units are directly held 74,835,939 by BCE Aggregator and 14,693 by Bayou City Energy Management LLC ("BCEM"). BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

These common units were purchased by BCE-Mach Aggregator LLC ("BCE Aggregator").

The price reported in Column 4 is a weighted average price. These common units were purchased by BCE Aggregator in multiple transactions at prices ranging from $12.44 to $12.67, inclusive. The Reporting Persons undertakes 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 (2) to this Form 4.

After the reported transactions, the reported common units are directly held 74,835,939 by BCE Aggregator and 14,693 by Bayou City Energy Management LLC ("BCEM"). BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased by the Tom L. Ward Family Foundation (the "Foundation") in multiple transactions at prices ranging from $11.56 to $11.72, inclusive. The Reporting Persons undertakes 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 (3) to this Form 4.

The Reporting Person exercises control over the Foundation. 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 Foundation, 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 price reported in Column 4 is a weighted average price. These common units were purchased by the Tom L. Ward Family Foundation (the "Foundation") in multiple transactions at prices ranging from $11.43 to $11.46, inclusive. The Reporting Persons undertakes 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 (3) to this Form 4.

The Reporting Person exercises control over the Foundation. 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 Foundation, 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 price reported in Column 4 is a weighted average price. These common units were purchased by the Foundation in multiple transactions at prices ranging from $11.91 to $12.03, inclusive. The Reporting Persons undertakes 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 (5) to this Form 4.

The Reporting Person exercises control over the Foundation. 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 Foundation, 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 price reported in Column 4 is a weighted average price. These common units were purchased by the Tom L. Ward Family Foundation (the "Foundation") in multiple transactions at prices ranging from $11.85 to $12.09, inclusive. The Reporting Persons undertakes 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 (3) to this Form 4.

The Reporting Person exercises control over the Foundation. 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 Foundation, 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.

These common units were purchased by Bayou City Energy Management LLC ("BCEM").

The price reported in Column 4 is a weighted average price. These common units were purchased by BCEM in multiple transactions at prices ranging from $11.84 to $11.87, inclusive. The Reporting Persons undertakes 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 (2) to this Form 4.

After the reported transactions, the reported common units are directly held 74,805,939 by BCE-Mach Aggregator LLC ("BCE Aggregator") and 14,693 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The reported securities represent phantom units. Each phantom unit represents the contingent right to receive one common unit of the Issuer upon vesting. The phantom units will vest on the first anniversary of the grant date, subject in each case to the continued service through such dates.

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

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

The reported securities represent phantom units. Each phantom unit represents the contingent right to receive one common unit of the Issuer upon vesting. The phantom units will vest on the first anniversary of the grant date, subject in each case to the continued service through such dates.

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

The reported securities represent phantom units. Each phantom unit represents the contingent right to receive one common unit of the Issuer upon vesting. The phantom units will vest on the first anniversary of the grant date, subject in each case to the continued service through such dates.

These common units were purchased by Bayou City Energy Management LLC ("BCEM").

After the reported transactions, the reported common units are directly held 74,805,939 by BCE-Mach Aggregator LLC ("BCE Aggregator") and 10,085 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased by BCE Aggregator in multiple transactions at prices ranging from $14.82 to $15.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote (2) to this Form 4.

After the reported transactions, the reported common units are directly held 74,805,939 by BCE Aggregator and 7,000 by Bayou City Energy Management LLC ("BCEM"). BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased by BCE-Mach Aggregator LLC ("BCE Aggregator") in multiple transactions at prices ranging from $14.52 to $14.75, inclusive. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission (the "SEC"), 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.

After the reported transactions, the reported common units are directly held 74,805,939 by BCE Aggregator and 7,000 by Bayou City Energy Management LLC ("BCEM"). BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased by BCE Aggregator in multiple transactions at prices ranging from $13.99 to $14.45, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote (3) to this Form 4.

After the reported transactions, the reported common units are directly held 74,525,539 by BCE Aggregator and 7,000 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased by BCE Aggregator in multiple transactions at prices ranging from $13.77 to $14.21, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote (2) to this Form 4.

After the reported transactions, the reported common units are directly held 74,525,539 by BCE Aggregator and 7,000 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. BCE-Mach Aggregator LLC ("BCE Aggregator") purchased 72,218 common units and Bayou City Energy Management LLC ("BCEM") purchased 7,000 common units. These common units were purchased in multiple transactions at prices ranging from $13.48 to $13.68, inclusive. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission (the "SEC"), 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.

After the reported transactions, the reported common units are directly held 74,525,539 by BCE Aggregator and 7,000 by BCEM. BCE Aggregator is indirectly managed by BCEM. William W. McMullen is the Managing Partner of BCEM. Accordingly, each of the Reporting Persons may be deemed to beneficially own the securities directly held by BCE Aggregator and BCEM, as applicable, but disclaim beneficial ownership of such common units except to the extent of their respective pecuniary interest therein.

As previously disclosed in the Issuer's prospectus supplement dated February 6, 2025, filed with the U.S. Securities and Exchange Commission on February 6, 2025, the Issuer completed a public underwritten offering of common units. BCE-Mach Aggregator LLC purchased 5,161,290 common units at a price to the public of $15.50 per share.

BCE-Mach Aggregator LLC is indirectly managed by Bayou City Energy Management LLC ("BCEM"). William W. McMullen is the Managing Partner of BCEM. Each of BCEM and Mr. McMullen (by virtue of his relationship with BCEM) may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the common units which BCE-Mach Aggregator LLC beneficially owns. Mr. McMullen disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.

The reported securities represent Common Units received in settlement of performance stock units granted May 3, 2024.

The reported securities represent Common Units received in settlement of performance stock units granted May 3, 2024.

The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $15.265 to $15.75, inclusive. The Reporting Person undertakes 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 (3) to this Form 4.

BCE-Mach Aggregator LLC is indirectly managed by Bayou City Energy Management LLC ("BCEM"). William W. McMullen is the Managing Partner of BCEM. Each of BCEM and Mr. McMullen (by virtue of his relationship with BCEM) may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the common units which BCE-Mach Aggregator LLC beneficially owns. Mr. McMullen disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $15.10 to $15.46, inclusive. The Reporting Person undertakes 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 (2) to this Form 4.

BCE-Mach Aggregator LLC is indirectly managed by Bayou City Energy Management LLC ("BCEM"). William W. McMullen is the Managing Partner of BCEM. Each of BCEM and Mr. McMullen (by virtue of his relationship with BCEM) may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the common units which BCE-Mach Aggregator LLC beneficially owns. Mr. McMullen disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $14.98 to $15.44, inclusive. The Reporting Person undertakes 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.

BCE-Mach Aggregator LLC is indirectly managed by Bayou City Energy Management LLC ("BCEM"). William W. McMullen is the Managing Partner of BCEM. Each of BCEM and Mr. McMullen (by virtue of his relationship with BCEM) may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the common units which BCE-Mach Aggregator LLC beneficially owns. Mr. McMullen disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $14.61 to $15.25, inclusive. The Reporting Person undertakes 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 (3) to this Form 4.

BCE-Mach Aggregator LLC is indirectly managed by Bayou City Energy Management LLC ("BCEM"). William W. McMullen is the Managing Partner of BCEM. Each of BCEM and Mr. McMullen (by virtue of his relationship with BCEM) may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the common units which BCE-Mach Aggregator LLC beneficially owns. Mr. McMullen disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $14.67 to $15.15, inclusive. The Reporting Person undertakes 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 (2) to this Form 4.

BCE-Mach Aggregator LLC is indirectly managed by Bayou City Energy Management LLC ("BCEM"). William W. McMullen is the Managing Partner of BCEM. Each of BCEM and Mr. McMullen (by virtue of his relationship with BCEM) may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the common units which BCE-Mach Aggregator LLC beneficially owns. Mr. McMullen disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions at prices ranging from $14.72 to $15.00, inclusive. The Reporting Person undertakes 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.

BCE-Mach Aggregator LLC is indirectly managed by Bayou City Energy Management LLC ("BCEM"). William W. McMullen is the Managing Partner of BCEM. Each of BCEM and Mr. McMullen (by virtue of his relationship with BCEM) may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Act) the common units which BCE-Mach Aggregator LLC beneficially owns. Mr. McMullen disclaims beneficial ownership of such common units except to the extent of his pecuniary interest therein.

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

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