A couple of days ago I blithely stated that Egypt's decision to cancel the agreement it had to supply natural gas to EMG was not a violation of the Egypt-Israel peace treaty. I am now cautiously walking that back; I am not so sure anymore. There was a memorandum of understanding signed between Egypt and Israel in 2005 that guarantees Egyptian supply of natural gas not just to Israel but to EMG specifically, in quite precise terms. I am reproducing the relevant portion below:
Here is the full copy of the MoU in PDF, which is also available on the Israeli Ministry of Foreign Affairs' website. It's signed by then Egyptian Minister of Petroleum Sameh Fahmy and then Israeli Minister of National Instructure (and Mubarak's best friend in Israel) Benyamin Ben Eliezer. I am not sure what relation it bears to the Egypt-Israel peace treaty, which it recalls in its preamble, as it does not seem to be an addendum to the treaty.