ShyT,
The point I was making is that one of the contributing factors to how much an airport buys their fuel in for is by volume, the more one buys then the more negotiating power one has.
Now, regardless that airports such as EMA, DSA and LBA will, no doubt, be able to offer any fuel stoppers a better price on fuel there are so many other, fixed and rotary wing, airfields around what would be Sheffield's catchment area already, Leicester, Nottingham, Derby, Huddersfield to name but a few, why the hell does that part of the country need a heliport for any passing helicopters to stop for fuel at?