Star Energy Group Plc operates as an oil and gas exploration, development, processing, and production company in the United Kingdom. The company holds gas and oil reserves at onshore locations in the East Midlands; and the Weald Basin in Southern England. It also generates electricity through geothermal energy; and development of deep geothermal heat projects. The company was formerly known as IGas Energy plc and changed its name to Star Energy Group Plc in June 2023. Star Energy Group Plc is based in Lincoln, the United Kingdom.