EXHIBIT 99.1 Star Group, L.P. Reports Fiscal 2025 Full Year and Fourth Quarter Results STAMFORD, Conn., Dec. 08, 2025 (GLOBE NEWSWIRE) -- Star Group, L.P. (the "Company" or "Star") (NYSE:SGU), a home energy distributor and services provider, today announced financial results for its fiscal 2025 full year and fourth quarter, the three months ended September 30, 2025. Twelve Months Ended September 30, 2025 Compared to the Twelve Months Ended September 30, 2024 For the fiscal year ended September 30, 2025, Sta ...