Nobody in the Middle East ever refused to sell oil to the west except during the brief embargo during and after the 1973 Arab-Israel war.
I note that oil price have risen sharply since the invasion of Iraq. So if that invasion was meant to assure "cheap" oil it failed utterly.
“The things that will destroy us are: politics without principle; pleasure without conscience; wealth without work; knowledge without character; business without morality; science without humanity; and worship without sacrifice.” Mahatma Gandhi