It's long been known that off the coast of Gaza sits 100's of billions of dollars worth of liquefied natural gas. Just add another reason why the Israeli mafia, err, State had been supporting and funding Hamas ... just waiting for a new event so they could claim it all.
https://energypress.ir/en/the-war-in-the-middle-east-is-the-war-for-access-to-natural-gas-resources/