OK dianavan, tell us all exactly how the US is going to control the flow of oil? No major US company, or unit of it's military have anything whatsoever to do with ownership or operation of pipelines in Iraq. No major US company has an Operators Licence for any oilfield in Iraq - here are the people who do and the names of the fields they operate:

West Qurna Phase 2 (Lukoil - Russian); Majnoon (Total - French); Bin Umar (Zarubezhneft - Russian); Nasiriya (Eni - Italian, Repsol - Spanish); Halfaya (BHP - Australian, South Korean consortium, CNPC - Chinese, Agip - Italian); Ratawi (Shell - Netherlands); Tuba (ONGC - Indian, Sonatrach - BVI); Suba-Luhais (Slavneft - Russian); Gharaf (TPAO - ?, Japex - Japan); Al-Ahdab (CNPC - Chinese); Amara (PetroVietnam); Western Desert (ONGC - Indian, Pertamina - Indonesia, Stroitransgaz - Russian, Tatneft - Russian); Tawke 1 (DNO ASA - Norwegian)

Why the US is interested in Iraq is exactly for the reasons given by the Joint House Security Committee.