Oy, Get your filthy hands off my Desert
Saudi was run by our man until he nationalised Aramco (Arabian-American Oil Co) at which point the leader was assassinated by the Americans (proxy) and the man belonging to the US was installed.
The current leaders can do what they like internally as long as they protect their masters interests.
This is just like Iran, we used to own that until our oil was nationalised so in conjunction with the US the democratic government was overthrown and the Shah installed.
Because the new bunch (Ayatollahs) won't do their former masters bidding they are ostracised.
If a new source of energy was to be discovered it wouldn't surprise me to see the whole of the Middle East glassed over to cover up previous crimes (by Western States)
Biting the hand that feeds IT
