Energean plc is an international hydrocarbon exploration and production company with a primary focus on natural gas in the Eastern Mediterranean region. Headquartered in London and listed on the London Stock Exchange as a FTSE 250 constituent, it operates producing assets and major development projects across Israel, Egypt, Italy, Greece, and Croatia. The company's flagship Karish gas field offshore Israel began production in October 2022, delivering around 6 billion cubic meters of gas annually, while the adjacent Olympus area holds additional discoveries. Other key assets include the NEA/NI gas fields in Egypt and the Cassiopea project offshore Italy, targeting first gas in 2024. Energean plc's gas-focused portfolio constitutes about 80% of production, with first-half 2023 output reaching 105,900 barrels of oil equivalent per day—nearly triple the prior year—and ambitions for 200,000 boepd, supported by 19 years of reserves life from 1.4 billion barrels of oil equivalent in 2P reserves. Originally founded as Aegean Energy SA in 2007 in Greece, it evolved through strategic acquisitions like the Karish and Tanin fields, shaping its role in regional energy supply and infrastructure development.