Notes:
It takes 3-6 months for crude oil to make its way through the refining process and make it into gasoline that you buy at the pump. Due to this delay, you may not see an immediate jump in pump prices.
This assumes that there are no disruptions in refinery capacity. If a refinery is disrupted, as happened during Hurricane Katrina, then you should expect the price you pay at filling stations to increase beyond the estimates here. Similarly, if taxes change, that will be reflected in the fuel price.
The pump price will also vary depending on your geography.