Energean plc (LSE: ENOG) has announced a 'significant' 2P reserves increase at its Israeli assets. : Energean plc (LSE: ENOG) has announced a “significant” 2P reserves increase at its Israeli assets, following the completion of an independent competent persons report by DeGolyer and MacNaughton. The report certified 3.5 trillion cubic feet of gas and 99.6 million barrels of gross liquid 2P reserves in the Karish, Karish North and Tanin fields. Energean’s gross 2P reserves in Israel now total approximately 729 million barrels of oil equivalent, which represents a 44 percent increase compared to its previously estimated 2P reserves.