do you not think the wholesale purchasers are not hedging also
Not a chance in hell of retail fuel suppliers hedging. Imagine hedging last week at $100, jumping with joy on your profits when it hit $113 and then crying a day later when it headed towards $90.
Hedging is almost all done by large fuel users or investors.
A fuel user like Ryanair likes to know the price they will paying and know the approx quantity they need. They will price their end product (tickets) on their input costs - so if they buy too high (as they have done in the past), it's already factored in and unlikely to affect their operations.
A fuel distributor paying over the odds on a very low margin product would run the risk of financial ruin if they over paid as the retailers would simply go to another supplier leaving them with very expensive fuel that they have to sell at a heavy loss.
In a way it's like trying to time the market on anything - you can get "lucky", but more often you can get burnt.
Example
DCC are a very large player in fuel (Ireland, UK, Denmark and Austria) They are stock exchange listed. If they did any hedging they'd have to state it as it would be seen as a fundamental risk. As they don't mention it, you can be sure they don't do it.
Same with applegreen, they actually stated that hedging is a very high risk and not something they'd ever consider.