While fairly volatile so one shouldn't make too much of day to day fluctuations, I'd say the
oil price spike is notable because it's happening in a time when the dollar has been rising a bit. Normally quite a lot of the oil price fluctuations (and "quite a lot" is an imprecise blogger term) can be explained by fluctuations in the dollar, with oil prices rising as the dollar declines relative to other currencies, but this time they're moving apart.
