I forgot to mention that I think you are wrong about this being about oil. There is something worth even more money going down over there. France, Germany, USA, UK, Russia and China are 6 of the 7 largest producers of weapons in the world. The 7th is Belgium and I am not sure of their position in this war.
China and France were the main suppliers of weapons into Burrundi when 800,000 people died in 100 days and the UN turned a blind eye while this went on. The group that gets control of Iraq will also have a the ability to supply all the warmongers in the middle east with weapons. Just imagine the amount of waeponry that will be required to secure the borders of Iraq when this conflict is over. You have Iran on one border, Kuwait on another, Syria, Jordan, Turkey and Saudi Arabia. Imagine the sorts of defences you would require to secure yourself against all of those countries. Wow...an arms dealers gold mine......... this is not to mention that if you take out Iran as well you have direct access to Afghanistan and Pakistan.....
You could then use all that nice oil to manufacture and purchase weapons. I am sure if the USA takes control of Iraq then we will definitely have waepons of mass destruction within the borders of Iraq as the USA will certainly ship over some of their nuclear arsenal to help 'protect' Iraqs borders......