Star Energy Group Plc operates as a British onshore energy company focused primarily on the exploration, appraisal, development, and production of oil and gas properties within the United Kingdom. The company holds and operates the largest number of onshore oil and gas fields in Britain, with core production sites mainly in the East Midlands and the Weald Basin in Southern England. Star Energy’s main products and services include natural gas and crude oil extraction and production, supported by operations across 28 fields and over 90 sites predominantly producing oil. Additionally, the company has expanded into renewable energy through geothermal projects, holding interests in geothermal energy exploration licenses in Croatia via its subsidiary A14 Energy Limited, which it owns 71% of as of early 2025. This geothermal portfolio includes exploration licenses in the Pannonian Basin, a region noted for its geothermal potential. Star Energy also operates in ancillary services such as gas storage and power generation. The company was founded in 2004 and is headquartered in Sudbrooke, Lincoln, UK.
Recent major changes include a strategic expansion into geothermal energy, highlighted by the acquisition and subsequent increase of its stake in A14 Energy Limited, giving Star Energy greater flexibility to develop its geothermal assets in Croatia, including three exploration licenses awarded for geothermal waters exploration in the Pannonian Basin. This move reflects a deliberate shift toward supporting the UK’s net zero ambitions by diversifying from traditional hydrocarbons into renewable energy. In 2025, Star Energy also completed its acquisition by IGas Energy plc, further consolidating its position within the UK’s onshore oil and gas sector under a larger group with enhanced operational capacity. The company continues to focus on short payback projects while maintaining vital energy security and environmental responsibility commitments through initiatives such as the Star Energy Community Fund. Its operations primarily serve the UK energy market with an emphasis on socially and environmentally responsible energy production and transitioning towards low-carbon solutions.