Also, they need to switch over to the winter blends, as well as the ramp up in price for the winter heating oil run. So you're right, plenty of opportunity for it to go right back up.
winter gasoline blends, are easier to make,
so usually cost less.
related, but not discussed here,
is that the price of fuel ethanol
has dropped a bunch,
from five bucks, to 2.28 September future