I've asked three times now, and it is clear you are not a poster who is willing to provide a link to substantiate your specific claims.
Very well.
Saying something like "Shaybah has only been partially explored" sounds profoundly hollow. I would wager that Saudi Arabia has been vastly explored, over and over again, for decades, using technology that would make our heads explode. You'll need to provide a link to literature suggesting what parts of SA are virgin territory before that claim will carry any weight. For now, it sounds laughable without context.
Iran COULD be producing at a higher rate, and they'd be that much faster to exhaustion. Your claim says nothing of reserve volume. It is interesting when people default to the macro rationalization that insists if you just throw enough money at a problem, you can solve a shortage. Doesn't work that way.

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