Change the question to how much the world price of oil can differ from the domestic price. Ans: very little.<br />
Now discover a couple billion new barrels of oil and ask the same question. That's why Obama says we can't drill our way out!
When the "evil" Bush and his oil company friends were in power, gas was less than $2 in the US, and all the liberals bitched and moaned about how high it was. Now you call anything less than $4 "go down." Yes, its Odumbo's fault. We remember that he promised us gas prices higher than $5 before the 2008 election. Its his fault.
People wake up and smell the coffee! <br />
I don't care which branch of government it is Local, County,State, Federal....It's all Legalized Organized Crime. Try to stop it and see what happens to you.
Gas prices are always lower in the summer. They always raise up in the Fall. Summer more fuel is used for vacations.