[manpower]

Price per barrel reflects itself directly into consumer prices for gasoline, but it will take a while. Considering that it takes time for gas to work it's way from the source, through the refinery, and overseas to your local gas station and that per barrel prices are always rising and falling, you can expect price per barrel to be a rough guide as to what local prices will do over the next few weeks. Unfortunately gas prices are subject to futures markets (which is beg) so i don't think you'll be able to get a concrete answer.

I did however, do a little googling and found an article from 1990 saying that a $1 increase in per barrel prices should result in a 2.5 cent increase in a gallon of gas.

eh, maybe that helps.