Found a factual article about why gas costs what it does and how much is typically tax. It goes a long way to disprove the common assumption amongst left-leaning young Americans that the war in the Middle East is all about oil. Here's the article: Gas Prices Primer. It's a couple of years old but the data is still valid.
Hmmm. According to this other article in CNN Money about gas prices worldwide, gasoline costs twelve cents! per gallon in Venezuela.
Wouldn't it be a whole lot easier to invade a country like Venezuela (government in disarray, no big army and no organized we-all-hate-America-movement there) and just STEAL all their gasoline? Hell, why invade Iraq for crude oil when we could invade Venezuela where they've already refined it into gasoline!