U probably should trade in any gas-powered vehicle and get an electric one, then. It's an oil-supported economy. Even if the U.S. doesn't buy a drop directly, the U.S. demand factors into the global market that sets the price. I think you're probably referring to visiting and spending money directly, but the sultan cares about and notices that a lot less than he'd notice getting de-funded by falling demand leading to falling oil prices. A lot of the mess we're in these days is because oil revenues have helped countries and people with the more radical Wahabbist bent over the years, and oil-wealthy donors have funded schools and other institutions throughout the Muslim world. The less-conservative version that was seen in places like Morocco, Turkey, Egypt and Lebanon and made places like Beirut and Tangier into what they were has lost ground by comparison.