Yep, Willie is correct about the rebate.
BP and Amoco are the same company now, for the past few years at least.
http://news.bbc.co.uk/1/hi/business/the ... 149139.stm
Something to consider: Marina's which sell fuel vs. highway stations generally don't pump as much fuel as their road brethens. With that notion, their (marina) refills are on a less occurance. IF fuel price from their supplier is say, 3.92 and they sell for 4.00 per gallon, they will keep that pump price until their next purchase of fuel. It might then, go up or it might come down, dependant on what their margins of price is, at the time of purchase.
The friendly Texaco down the street may go through 2-5 tankers in a 5-7 day period, the price you pay at the pump will vary, up and down.
The marina is not going to vary his price until he pays for another shipment. That could be most of all summer.
I will plan most trips with more consideration to fuel prices, more than I have in the past. I just bought Floscans and am going to start monitoring the boat's usage. Really looking forward to using them as they will surely be a fuel saver for me. Also, being a BoatUS member, I will pay more attention to those 10% discount marina fuel locations when considering fuel purchases.