STAR GROUP, L.P.

For the period ended Sep 30, 2025. Filed Dec 9, 2025.

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Dec 9, 2025

SGU$13.16-0.2%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 16. Form 10-K Summary

None.

INDEX TO EXHIBITS

ExhibitNumber		Description
3.1	Amended and Restated Certificate of Limited Partnership (Incorporated by reference to an exhibit to the Registrant’s Quarterly Report on Form 10-Q filed with the Commission on May 9, 2006.)
3.2	Certificate of Amendment to Amended and Restated Certificate of Limited Partnership (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K with the Commission on October 27, 2017.)
3.3	Third Amended and Restated Agreement of Limited Partnership (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K with the Commission on November 6, 2017.)
3.4	Amendment No. 1 to Third Amended and Restated Agreement of Limited Partnership of Star Group, L.P. (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K filed with the Commission on March 24, 2023).
4.1	Unit Purchase Rights Agreement dated as of March 24, 2023 by and between the Registrant and Computershare Trust Company, N.A., as rights agent (which includes the form of Rights Certificate as Exhibit A thereto) (Incorporated by reference as an exhibit to the Registrant's Form 8-A filed with the Commission on March 24, 2023.)
10.1	Amended and Restated Management Incentive Compensation Plan† (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K with the Commission on July 20, 2012.)
10.2	Form of Indemnification Agreement for Officers and Directors (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K with the Commission on July 21, 2006.)
10.3	Form of Amendment No. 1 to Indemnification Agreement (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K with the Commission on October 23, 2006.)
10.4	Modification of Profit Sharing Plan† (Incorporated by reference to an exhibit to the Registrant’s Annual Report on Form 10-K filed with the Commission on December 10, 2014.)
10.5	Change in Control Agreement dated December 4, 2007 between Star Gas Partners, L.P. and Richard F. Ambury† (Incorporated by reference to an exhibit to the Registrant’s Annual Report on Form 10-K filed with the Commission on December 7, 2007.)
10.6	Employment Agreement dated April 28, 2008 between Star Gas Partners, L.P. and Richard Ambury† (Incorporated by reference to an exhibit to the Registrant’s Annual Report on Form 10-K filed with the Commission on December 10, 2008.)
10.7	Letter Agreement, dated as of June 19, 2019, between the Company and Jeffrey M. Woosnam regarding employment (Incorporated by reference to an exhibit to Registrant’s Current Report on Form 8-K dated June 21, 2019.)
10.8	Seventh Amended and Restated Credit Agreement, dated as of September 27, 2024 (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K dated September 27, 2024.)
10.9	Seventh Amended and Restated Pledge and Security Agreement, dated as of September 27, 2024 (Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K dated September 27, 2024.)

10.10	First Amendment to Seventh Amended and Restated Credit Agreement and Seventh Amended and Restated Pledge and Security Agreement, dated as of April 2, 2025 (Incorporated by reference to an exhibit to the Registrant’s Quarterly Report on Form 10-Q dated May 7, 2025.)
10.11	Unit Purchase Agreement, dated as of May 30, 2025, between the Company and Bandera Master Fund, L.P (Incorporated by reference to an exhibit to the Registrant’s Quarterly Report on Form 10-Q dated August 6, 2025.)
19	Insider Trading Policy (Incorporated by reference to an exhibit to the Registrant’s Form 10-K/A dated February 25, 2025.)
21*	Subsidiaries of the Registrant (Filed herewith.)
31.1*	Certification of Chief Executive Officer, Star Group, L.P., pursuant to Rule 13a-14(a)/15d-14(a)
31.2*	Certification of Chief Financial Officer, Star Group, L.P., pursuant to Rule 13a-14(a)/15d-14(a)
32.1*	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
97*	Star Group L.P. Incentive Compensation Recovery Policy (Incorporated by reference to an exhibit to the Registrant’s Form 10-K dated December 4, 2024.)
101.INS*	Inline XBRL Instance Document
101.SCH*	Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents
104	Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

Filed Herewith

† Employee compensation plan.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the general partner has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized this 8 th day of December, 2025:

STAR GROUP, L.P.
By:	KESTREL HEAT, LLC (General Partner)
By:	/s/ Jeffrey M. Woosnam
	Jeffrey M. Woosnam
	President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed by the following persons in the capacities and on the date indicated:

Jeffrey M. Woosnam
Signature	Title	Date
/s/ Jeffrey M. Woosnam	President and Chief Executive Officer and Director Kestrel Heat, LLC	December 8, 2025
/s/ Richard F. Ambury	Chief Financial Officer, Executive Vice President, Treasurer and Secretary (Principal	December 8, 2025
Richard F. Ambury	Financial Officer) Kestrel Heat, LLC
/s/ Cory A. Czekanski	Vice President—Controller (Principal Accounting Officer) Kestrel Heat, LLC	December 8, 2025
Cory A. Czekanski
/s/ Paul A. Vermylen, Jr.	Non-Executive Chairman of the Board and Director Kestrel Heat, LLC	December 8, 2025
Paul A. Vermylen, Jr.
/s/ C. Scott Baxter	Director Kestrel Heat, LLC	December 8, 2025
C. Scott Baxter
/s/ David M. Bauer	Director Kestrel Heat, LLC	December 8, 2025
David M. Bauer
/s/ Daniel P. Donovan	Director Kestrel Heat, LLC	December 8, 2025
Daniel P. Donovan
/s/ Bryan H. Lawrence	Director Kestrel Heat, LLC	December 8, 2025
Bryan H. Lawrence
/s/ William P. Nicoletti	Director Kestrel Heat, LLC	December 8, 2025
William P. Nicoletti

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

AND FINANCIAL STATEMENT SCHEDULE

Part II Financial Information:
	Page
Item 8—Financial Statements
Report of Independent Registered Public Accounting Firm (KPMG LLP, New York, NY, Auditor Firm ID: 185)	F-2 – F-3
Consolidated Balance Sheets as of September 30, 2025 and September 30, 2024	F-4
Consolidated Statements of Operations for the years ended September 30, 2025, September 30, 2024 and September 30, 2023	F-5
Consolidated Statements of Comprehensive Income for the years ended September 30, 2025, September 30, 2024 and September 30, 2023	F-6
Consolidated Statements of Partners’ Capital for the years ended September 30, 2025, September 30, 2024 and September 30, 2023	F-7
Consolidated Statements of Cash Flows for the years ended September 30, 2025, September 30, 2024 and September 30, 2023	F-8
Notes to Consolidated Financial Statements	F-9 – F-38
I. Condensed Financial Information of Registrant	F-39– F-41
II. Valuation and Qualifying Accounts	F-42
All other schedules are omitted because they are not applicable or the required information is shown in the consolidated financial statements or the notes therein.

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