Chance for (Saudi)Arabian peninsula having giant onshore Gas too?

[KilonBerlin + 8]

Hi guys,

since Saudis seem to import their Gas and the UAE use all their production to produce water or electricity or like the very large Saudi Oil Power plant near Mekka which has 6 huge (6 x 400MW afair?!) parts and each also had a desalination or "steam collecting" mechanism in the cooling sector integrated, increasing efficiency... is it because a large or very large gas production complex is even more costly than oil? I think the gas form alone makes it harder, not to talk about LNG-Tankers and facilities at start and end point. Is it unrealistic to expect trillions m³ of natural gas in all these countries from Oman/Yemen to the northern area where kuwait and bahrain are lying?! 

I mean Qatar and Iran otherwise could develop this largest (so far) known gas field and flood the world, that would be self-destructive ofc but now where the US plan/prepare to become natural gas and oil exporter (delayed by Coronavirus). Can the method the US use in their basins be used in every stable land area? are there some patents/know-how things for these method or is it a question of investment (2-digit million US-$ per rig with everything from 1st geoseismic tests to running production? or is it only 1-digit?) and needed customers and pipelines to a LNG-plant?