This may be the intention of a) Saudi; b) USA; c) Russia; d) All of the Above; e) Henry Kissinger in his sunset years.
The whole middle east is depopulated and some American sitting in a hut on the beach collects a toll from the oil tankers filling up. He might even wipe their windows.
All is not as it seems in the kingdom:
http://www.sunnah.org/aqida/kharijites5.htm
“...By requiring subjection in principle to the authority whose voice is Wahhabism, this doctrine simultaneously renders these subjects open to the dictation of cultural and societal relations whose ground and condition are this authority. In short, Wahhabite fundamentalism puts forward a model whose task is to subject local societies with their customs, authorities, devotions, and other particularities to a general process of acculturation which prepares them for membership in the commonwealth whose linchpin and exclusive raison d’etre is the absolute dominance of the house of Su’ud...