Countries like Afghanistan and Kuwait are gateways to where the oil has to come through to be shipped across to the USA,that is one of the reasons we are there isn't it?
Afghanistan isn't one of the top 100 countries with proven oil reserves, though I've heard that Afghanistan has untapped natural gas reserves. It appears to be about 60th in the world. I don't think any of their natural resources are being tapped. So, if we are there for natural resources we aren't doing a very good job of manipulating them.
Did we even get one drop of oil out of Iraq? Did we get reimbursed for anything from the sale of Iraq's oil? While I agree that we went to Iraq for the oil, a lack of income from Iraq oil twice underlines the ineptitude of the Bush Administration.
Since we have been told repeatedly that we were there so long because we had to rebuild nations, we apparently suck at it.