Shares in Energean plunged on Monday after the company said that production, supply and work offshore were continuing after the attack on Israel.
At 1316 GMT London-listed shares were down 198.5 pence, or 19%, at 838.5 pence.
The oil-and-gas company, listed on both London and Tel Aviv’s stock exchanges, said that the Northern area of Israel–where the company’s operations are based–isn’t currently under attack.
“Energean is and remains fully committed to underwriting the energy security of Israel during these challenging times,” it said, adding that it continues to closely monitor the events to manage any scenario.