It would be nice if you could lock in the low prices by purchasing the fuel today.
You can. It’s called futures. Southwest Airlines has used them to keep costs down.
I remember reading about people who were buying gas for 99 cents a gallon when everyone was paying above 4 dollars. I don’t remember how they did it. The figure that sticks with me is that they paid something like ten thousand dollars for the right to buy ten thousand gallons at 99 cents a gallon. It’s definitely something worth looking into if you drive a lot.