mheslep, you're right. The effect would be very slight at best, but most likely non-existent.
http://tonto.eia.doe.gov/dnav/pet/hist/rbrted.htm
On this chart, if you look at the price right around Christmas, Dec 25, you'll see that spot European crude is hovering at around $34. I would say that the price went from $34 to $38. But there are other factors involved in the price. For instance oil inventories were down yesterday, which would have put upward pressure on prices:
http://uk.reuters.com/article/oilRpt/idUKN1060341120090210
Again, I would agree that other than creating short lived spikes, purely political events don't have much impact on oil prices these days.
But if you're looking to make money on oil spikes, I would personally look at the actions of the US and Israel, both starting or being behind every single war in the Middle East for the last decade. Look for political situations in those countries. Iran isn't going to invade Israel, but Israel is chomping at the bit to invade Iran.
You might have been able to predict the invasion of Gaza. Israeli elections coming up. New president in the US. It was a temporal vortex that was inviting some sort of military action against Gaza.
I'd like to stay away from a political discussion of who's right and wrong in these conflicts, but if you're building a mathematical model, my suggestion is to not build in your own personal political biases. I need to remind myself as well of that suggestion all the time.