Gaza has a huge gas field next to it which israel has already sold off before even owning it. The water the Zionist use is stolen from the west bank BTW.

Gaza Marine is a natural gas field off the coast of the Gaza Strip. The Gaza Marine natural gas field is located in water about 36 kilometres (22 mi) offshore at a depth of 2,000 feet (610 m).[1] The field was discovered in 2000 by BG Group and it is estimated to contain more than 1 trillion cubic feet of natural gas.

On 18 June 2023, the Israeli government gave preliminary approval for its development.