You realize of course that the US Army protecting the Oil Ministry during the invasion and the current contract by the US for oil companies in Iraq (the most generous to oil companies in the history of the oil industry) mitigate against your point right? Furthermore you are looking at CURRENT IMPORTS. Iraq has the 2nd largest proven reserves of oil on the planet. Invading Saudi Arabia would prove far too upsetting to Muslims but Iraq is another story.
http://www.globalpolicy.org/security/oil/irqindx.htm