Results of Operations and Financial Condition. On August 5, 2026, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal third quarter ended June 30, 2026. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by referenc…

President and Chief Executive Officer and Director Kestrel Heat, LLC — Jeffrey M. Woosnam: Salary increase approved to align with market competitive levels and reflect continued leadership.

Results of Operations and Financial Condition. On May 6, 2026, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal second quarter ended March 31, 2026. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference…

Other Events On February 10, 2026, the Board of Directors of the general partner of Star Group, L.P. (the “Company”) authorized an increase of the number of Common Units that the Company can repurchase in open market transactions to a total of 2.0 million, which is effective February 24, 2026. There is no guarantee of the exact number of units that will be purchased under the program and the Company may discontinue purchases at any time. The program does not have a time limit. The Company’s r…

Results of Operations and Financial Condition. On February 4, 2026, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal first quarter ended December 31, 2025. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by re…

Results of Operations and Financial Condition. On December 8, 2025, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal fourth quarter and year ended September 30, 2025. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorpo…

Results of Operations and Financial Condition. On August 6, 2025, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal third quarter ended June 30, 2025. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by referenc…

Entry into a Material Definitive Agreement. On May 30, 2025, Star Group, L.P., a Delaware limited partnership (the “Company”), entered into a Unit Purchase Agreement with Bandera Master Fund, L.P. (“Seller”), pursuant to which the Company agreed to purchase 0.7 million common units in a private transaction for aggregate consideration of approximately $8.4 million. The purchase was made outside of the Company’s unit repurchase plan. This transaction closed on June 2, 2025. As reported in its F…

Results of Operations and Financial Condition. On May 7, 2025, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal second quarter ended March 31, 2025. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference…

Results of Operations and Financial Condition. On February 5, 2025, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal first quarter ended December 31, 2024. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by re…

Director and member of the Audit Committee — Henry D. Babcock: Mr. Babcock decided to retire as a director and member of the Audit Committee.

Entry into a Material Definitive Agreement. On December 6, 2024, Star Group, L.P., a Delaware limited partnership (the “Company”), entered into a Consent to the Seventh Amended and Restated Credit Agreement (“Credit Agreement”) with a bank syndicate comprised of ten participants. The Consent (i) extends the time periods by which a specified acquisition must be signed and closed in order to be deemed a “Permitted Acquisition" under the Credit Agreement and (ii) extends the time period by which…

Results of Operations and Financial Condition. On December 4, 2024, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal fourth quarter and fiscal year ended September 30, 2024. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed…

Entry into a Material Definitive Agreement. On September 27, 2024, Star Group, L.P., a Delaware limited partnership (the “Company”), entered into a seventh amended and restated asset-based credit facility agreement (the “Credit Agreement”) with a bank syndicate comprised of ten participants acting in various capacities, which expires in September 2029 and provides the borrower under the Credit Agreement (a subsidiary of the Company) with an ability to borrow up to $400 million ($475 million d…

Results of Operations and Financial Condition. On July 31, 2024, Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal third quarter ended June 30, 2024. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference…

Results of Operations and Financial Condition. On May 1, 2024 Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal second quarter ended March 31, 2024. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference…

Results of Operations and Financial Condition. On February 7, 2024 Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal first quarter ended December 31, 2023. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by ref…

Results of Operations and Financial Condition. On December 6, 2023 Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal fourth quarter and fiscal year ended September 30, 2023. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed i…

Entry into a Material Definitive Agreement. On September 26, 2023, Petroleum Heat and Power Co., Inc., a Minnesota corporation (“Petro”), which is an indirect subsidiary of Star Group, L.P., a Delaware limited partnership (the “Partnership” or “Star”), signed a first amendment (the “Amendment”) to its Sixth Amended and Restated Credit Agreement with a group of banks (the “Credit Agreement”), which provides temporary relief from certain financial covenants under the Credit Agreement that must…

Other Events On August 9, 2023 Star Group, L.P., a Delaware partnership, issued a press release announcing the completion of its acquisition of a Long Island-based propane business that expands its operations in that area. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by…

Results of Operations and Financial Condition. On August 2, 2023 Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal third quarter ended June 30, 2023. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference…

Results of Operations and Financial Condition. On July 13, 2023, Star Group, L.P., a Delaware partnership, issued a press release declaring its quarterly distribution on all units for the fiscal third quarter ended June 30, 2023. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorpor…

Other Events Effective May 10, 2023, the Board of Directors of the general partner of Star Group, L.P. (the “Company”) authorized an increase of the number of Common Units that the Company can repurchase in open market transactions by 1.5 million Common Units to a total of 2.3 million. There is no guarantee of the exact number of units that will be purchased under the program and the Company may discontinue purchases at any time. The program does not have a time limit. The Company’s repurchas…

Results of Operations and Financial Condition. On May 3, 2023 Star Group, L.P., a Delaware partnership, issued a press release announcing its financial results for the fiscal second quarter ended March 31, 2023. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference…

Results of Operations and Financial Condition. On April 13, 2023, Star Group, L.P., a Delaware partnership, issued a press release declaring its quarterly distribution on all units for the fiscal second quarter ended March 31, 2023. A copy of the press release is furnished within this report as Exhibit 99.1. The information in this report is being furnished and is not deemed as "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incor…