http://www.time.com/time/world/article/0,8599,1908265,00.htmlThis...

http://www.time.com/time/world/article/0,8599,1908265,00.html

This is an article from the Times, its a few years old but to me it kinda explains why the US don't have oil interest in Iraq after the war, this may change eventually.

here is a paragraph;-
Even before the auction, analysts warned that Iraq's plans for attracting the investment necessary to crank up its output were overly optimistic. Iraq plans to retain ownership of its oil, but make long-term agreements with foreign companies to run the operations. But Oil Minister Hussein Shahristani demanded that oil companies lower their profit expectations, offering to pay them $2 for every barrel pumped in Iraq rather than the $4-a-barrel rate sought by oil executives. Chevron, which had negotiated for a year to develop Iraq's second-biggest field, West Qurna, pulled out of the deal on Tuesday, saying it had not met the company's "standard investment criteria." French giant Total and Spain's Repsol also withdrew after failing to secure a better deal from the Iraqis, leaving Baghdad high and dry. "[The Iraqis] approached this auction with a bit of arrogance," Younsi says. "They thought oil companies would do absolutely anything to get into Iraq."

Read more: http://www.time.com/time/world/article/0,8599,1908265,00.html#ixzz1HPo3pA6E