The gas and oil off the coast isn't much, maybe if left for use in Gaza exclusively, ten, fifteen maybe if they are lucky twenty years worth. They estimate a little over a trillion cubic foot of natural gas and 1.7 billion barrels of oil. If I remember right it is not exclusively in Israeli territory and would be cooperative effort with, again if I remember right Qatar. One reason after years of talking about a med east pipeline it was abandon. Wasn't worth the cost of the infrastructure that would cost billions to invest in. Trump knew that when he did that miraculous med east deal it was a no go. Just more hyperbole from him.