Star Group, L.P., together with its subsidiaries, provides home heating oil and propane products and services to residential and commercial customers in the United States. It offers gasoline and diesel fuel; and installs, maintains, and repairs heating and air conditioning equipment and ancillary services. As of September 30, 2025, the company served approximately 406,400 full-service residential and commercial home heating oil and propane customers and 63,200 customers on a delivery only basis. It sells gasoline and diesel fuel to approximately 27,700 customers. The company was formerly known as Star Gas Partners, L.P. and changed its name to Star Group, L.P. in October 2017. The company was incorporated in 1995 and is based in Stamford, Connecticut.