We import(gross) a little less than 10 million barrels of oil a day of those about 30% comes from OPEC nations which includes nations from African and South America. not just the gulf states. Just the gulf states we import about 16%. Our biggest import partner is Canada which provides 43% of total imports followed by Saudi Arabi at 9%.If we could rid ourself of our dependency on oil, we wouldn’t have to worry about any of this stuff. We wouldn’t need to even be in the area protecting our economy. A large part of terrorism is funded by oil money. We can disagree about global warming. We can talk about nuclear (which I’m for). But we will never solve the problem in the Middle East until we don’t have a reason to be there.
https://www.eia.gov/tools/faqs/faq.php?id=727&t=6