I have noticed this too. Personally, I think that speculators have been driving the prices of oil up by future trading. How else does oil go up in a day by like 13$ a barrel on threat of a hurricane for example?
They should be happy that prices have come down some. 150$ barrel oil or even 100$ barrel isn't good for the economy plus it gets people interested in conserving or alternative energy.
But I guess they are just a bunch of greedy bastards. Or maybe they aren't making enough money? Seems kind of ridiculous considering how much oil was 5 or 10 years ago and they weren't broke then.