Does it happen at any gas station that you try? I've noticed that some of the stations in my area do this.
Most likely there's something wrong with your evap canister. When I relocated mine to over my rear axle one of the hard plastic lines got kinked. When ever I would go to fill up the fumes would build up in the fill tube and cause the fuel pump to shut off.
Take a look at you evap canister and all the tubing that goes to your fuel tank, make sure that none of it is cracked.
By any chance do you get the "gas cap" message on your dash whenever you start your Jeep?
Check for the recall. Mine did this and always pissed me off, not to mention burped fuel. I received a recall, something about the valve, but to replace the valve they needed to replace the entire tank! Had the recall done and have no issues since. I have a 2007.