"I have the exact same feeling/thoughts. They spend a few decades not sharing any of the oil profits ..."

This is a very simplistic (and incorrect) view of the economic relationship between the United States and S.A.

First, the majority of Saudi oil is sold to Europe and Asia (not the United States) but it has always been denominated in US dollars - regardless of the purchaser. This enormous demand for US dollars in global trade that need not be related to the US at all has been to our great favor.

Second, a tremendous amount of the US dollar surplus that SA generates is immediately recycled back into the hands of US industry - specifically, military industry. SA is a ready buyer of whatever new technologies our military industrial complex produces and we are paid a great sum of money for this military partnership.

You personally may not be sharing in the profits but a tremendous economic benefit is realized by the United States and her technical and military industries.