Why did we invade Iraq? For oil? Then where's the oil?
Greg Palast has a different theory. He thinks it was to stop oil from flowing out of Iraq.
Big Oil could not allow Iraq's oil fields to be privatised and taken from state control. That would make it impossible to keep Iraq within OPEC (an avowed goal of the neo-cons) as the state could no longer limit production in accordance with the cartel's quota system. The US oil industry was using its full political mojo to prevent their being handed ownership of Iraq's oil fields.
That's right: The oil companies didn't want to own the oil fields – and they sure as hell didn't want the oil. Just the opposite. They wanted to make sure there would be a limit on the amount of oil that would come out of Iraq.
Saddam wasn't trying to stop the flow of oil – he was trying to sell more. The price of oil had been boosted 300 percent by sanctions and an embargo cutting Iraq's sales to two million barrels a day from four. With Saddam gone, the only way to keep the damn oil in the ground was to leave it locked up inside the busted state oil company which would remain under OPEC (i.e. Saudi) quotas.
Palast's evidence is not completely convincing, but it's at least plausible, which is more than I can say for most theories I've heard.