You would think that after 9/11 with 16(?) Saudi hijackers and Osama bin Laden as the Saudi Mastermind that some assets were frozen? No, I don't think so... Rather a different country was invaded! Who controls the oil is above the law!
I read quite a bit about Carmen bin Laden (that's why I mentioned her), she was Osama's sister in law (divorced, of Swiss descent). She lived with the Bin Ladens for years. Osama's "piousness" and zealous hate was very highly regarded by the whole family and the Saudi King, in their minds, he is a true islamic hero! Some may see him as a liability, but they would never betray or repudiate him.