Perhaps Sadad knows, but is he telling the whole truth?  Would he risk his head for a NY Times reporter?
Personally, I doubt it.

I get the impression from reading "Twilight in the Desert" by Simmons that Saudi Arabia will be lucky to maintain the 9.5 - 11 mbpd level of output they currently have for much very longer. They will need to discover some significant new fields in order to raise production by 4 to 5 mpbd (to get to 15 mpdb), esp. once depletion becomes evident in Ghawar and their other large-but-aging fields.