SGU · Star Group, L.P.

This Form 4 is being submitted after the due date because the Common Units were inadvertently purchased for the Reporting Person pursuant to an automatic brokerage distribution reinvestment program without his knowledge.

This Form 4 is filed jointly by Bandera Partners LLC ("Bandera Partners"), Gregory Bylinsky and Jefferson Gramm (collectively, the "Reporting Persons"). Each of the Reporting Persons was deemed to be a member of a Section 13(d) group that was previously deemed to collectively beneficially own more than 10% of the Issuer's outstanding Common Units. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.

On May 30, 2025, Bandera Master Fund entered into a Unit Purchase Agreement with the Issuer pursuant to which it agreed to sell to the Issuer 700,000 Common Units at a price of $12.04 per unit. The transaction closed on June 2, 2025.

Bandera Partners is the investment manager of Bandera Master Fund L.P. ("Bandera Master Fund"), in whose name the securities are held. Messrs. Bylinsky and Gramm are the Managing Members of Bandera Partners. Bandera Master Fund has delegated to Bandera Partners the sole and exclusive authority to vote and dispose of the securities held by Bandera Master Fund. As a result, each of Bandera Partners and Messrs. Bylinsky and Gramm may be deemed to beneficially own the securities held by Bandera Master Fund.

This Form 4 is filed jointly by Bandera Partners LLC ("Bandera Partners"), Gregory Bylinsky and Jefferson Gramm (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding Common Units. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.

Bandera Partners is the investment manager of Bandera Master Fund L.P. ("Bandera Master Fund"), in whose name the securities are held. Messrs. Bylinsky and Gramm are the Managing Members of Bandera Partners. Bandera Master Fund has delegated to Bandera Partners the sole and exclusive authority to vote and dispose of the securities held by Bandera Master Fund. As a result, each of Bandera Partners and Messrs. Bylinsky and Gramm may be deemed to beneficially own the securities held by Bandera Master Fund.

This Form 4 is filed jointly by Bandera Partners LLC ("Bandera Partners"), Gregory Bylinsky and Jefferson Gramm (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding Common Units. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.

Bandera Partners is the investment manager of Bandera Master Fund L.P. ("Bandera Master Fund"), in whose name the securities are held. Messrs. Bylinsky and Gramm are the Managing Members of Bandera Partners. Bandera Master Fund has delegated to Bandera Partners the sole and exclusive authority to vote and dispose of the securities held by Bandera Master Fund. As a result, each of Bandera Partners and Messrs. Bylinsky and Gramm may be deemed to beneficially own the securities held by Bandera Master Fund.

This Form 4 is filed jointly by Bandera Partners LLC ("Bandera Partners"), Gregory Bylinsky and Jefferson Gramm (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding Common Units. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.

Bandera Partners is the investment manager of Bandera Master Fund L.P. ("Bandera Master Fund"), in whose name the securities are held. Messrs. Bylinsky and Gramm are the Managing Members of Bandera Partners. Bandera Master Fund has delegated to Bandera Partners the sole and exclusive authority to vote and dispose of the securities held by Bandera Master Fund. As a result, each of Bandera Partners and Messrs. Bylinsky and Gramm may be deemed to beneficially own the securities held by Bandera Master Fund.

This Form 4 is filed jointly by Bandera Partners LLC ("Bandera Partners"), Gregory Bylinsky and Jefferson Gramm (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that collectively beneficially owns more than 10% of the Issuer's outstanding Common Units. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.

Bandera Partners is the investment manager of Bandera Master Fund L.P. ("Bandera Master Fund"), in whose name the securities are held. Messrs. Bylinsky and Gramm are the Managing Members of Bandera Partners. Bandera Master Fund has delegated to Bandera Partners the sole and exclusive authority to vote and dispose of the securities held by Bandera Master Fund. As a result, each of Bandera Partners and Messrs. Bylinsky and Gramm may be deemed to beneficially own the securities held by Bandera Master Fund.

Pro rata distributions for no additional consideration from Yorktown VI Company LP ("Yorktown VI Company") and Yorktown VI Associates LLC ("Yorktown VI Associates"), in accordance with their respective governing documents.

The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

These securities are owned directly by Yorktown VI Company. The reporting person is a member and manager of Yorktown VI Associates, the general partner of Yorktown VI Company.

Pro rata distributions for no additional consideration from Yorktown VI Company LP ("Yorktown VI Company") and Yorktown VI Associates LLC ("Yorktown VI Associates"), in accordance with their respective governing documents.

On December 30, 2021, Star Group, L.P. ("Star Group") repurchased 413,223 Common Units from Yorktown Energy Partners VI, L.P. in a transaction exempt from the provisions of Rule 16(b) under the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-3(e) promulgated thereunder.

The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

These securities are owned directly by Yorktown VI Company LP ("Yorktown VI Company"). The reporting person is a member and manager of Yorktown VI Associates LLC ("Yorktown VI Associates"), the general partner of Yorktown VI Company.

On November 3, 2021, Kestrel Energy Partners, LLC ("Kestrel") made an in-kind distribution of common units of Star Group, L.P. ("Star Group") pro rata to its members, for no consideration. As members of Kestrel, none of Mr. Vermylen, The Robin C. Vermylen 2016 Irrevocable Trust and The Paul A. Vermylen, Jr. 2015 Irrevocable Trust held a pecuniary interest in the common units of Star Group held by Kestrel prior to the in-kind distribution.

The original Form 4, filed on November 3, 2011, is being amended solely to correct an administrative error, which overstated the number of Star Group common units beneficially owned by the reporting person, directly and indirectly, by a total of twenty-three (23) common units. Consequently, this amendment reflects (i) a reduction in the number of common units beneficially owned by Mr. Vermylen by thirteen, (ii) a reduction in the number of common units beneficially owned by The Robin C. Vermylen 2016 Irrevocable Trust by five , and (iii) a reduction in the number of common units beneficially owned by The Paul A. Vermylen, Jr. 2015 Irrevocable Trust by five.

On November 3, 2021, Kestrel Energy Partners, LLC ("Kestrel") made an in-kind distribution of common units of Star Group, L.P. ("Star Group") pro rata to its members, for no consideration. As members of Kestrel, none of Mr. Vermylen, The Robin C. Vermylen 2016 Irrevocable Trust and The Paul A. Vermylen, Jr. 2015 Irrevocable Trust held a pecuniary interest in the common units of Star Group held by Kestrel prior to the in-kind distribution.

The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

The original Form 4, filed on November 3, 2011, is being amended solely to correct an administrative error, which overstated the number of Star Group common units beneficially owned by the reporting person, directly and indirectly, by a total of twenty-three (23) common units. Consequently, this amendment reflects (i) a reduction in the number of common units beneficially owned by Mr. Vermylen by thirteen, (ii) a reduction in the number of common units beneficially owned by The Robin C. Vermylen 2016 Irrevocable Trust by five , and (iii) a reduction in the number of common units beneficially owned by The Paul A. Vermylen, Jr. 2015 Irrevocable Trust by five.

These securities are owned directly by The Paul A. Vermylen, Jr. 2015 Irrevocable Trust. The reporting person is a beneficiary of the trust and is the settlor of the trust.

On November 3, 2021, Kestrel Energy Partners, LLC ("Kestrel") made an in-kind distribution of common units of Star Group, L.P. ("Star Group") pro rata to its members, for no consideration. As members of Kestrel, none of Mr. Vermylen, The Robin C. Vermylen 2016 Irrevocable Trust and The Paul A. Vermylen, Jr. 2015 Irrevocable Trust held a pecuniary interest in the common units of Star Group held by Kestrel prior to the in-kind distribution.

The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

The original Form 4, filed on November 3, 2011, is being amended solely to correct an administrative error, which overstated the number of Star Group common units beneficially owned by the reporting person, directly and indirectly, by a total of twenty-three (23) common units. Consequently, this amendment reflects (i) a reduction in the number of common units beneficially owned by Mr. Vermylen by thirteen, (ii) a reduction in the number of common units beneficially owned by The Robin C. Vermylen 2016 Irrevocable Trust by five , and (iii) a reduction in the number of common units beneficially owned by The Paul A. Vermylen, Jr. 2015 Irrevocable Trust by five.

These securities are owned directly by The Robin C. Vermylen 2016 Irrevocable Trust. The reporting person is a trustee of the trust and the reporting person's spouse is a beneficiary of the trust. Therefore, the reporting person may be deemed to have a pecuniary interest in the securities held by the trust.

On November 3, 2021, Kestrel Energy Partners, LLC ("Kestrel") made an in-kind distribution of common units of Star Group, L.P. ("Star Group") pro rata to its members, for no consideration. As a member of Kestrel, Yorktown Energy Partners VI, L.P. did not hold a pecuniary interest in the common units of Star Group held by Kestrel prior to the in-kind distribution.

The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

These securities are owned directly by Yorktown Energy Partners VI, L.P. ("Yorktown VI"). The reporting person is a member and manager of Yorktown VI Associates LLC ("Yorktown VI Associates"), the general partner of Yorktown VI Company LP ("Yorktown VI Company"), the general partner of Yorktown VI.

The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

Common Units owned by the Richard F. Ambury 2013 Revocable Living Trust, with respect to which Mr. Ambury is the trustee.

The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

Common Units owned by White Hill Trust, with respect to which Mr. Babcock's sister-in-law and stepson are trustees and Mr. Babcock's wife is the primary beneficiary.