On Gasbuddy.com at this very moment, regular gas;
Walmart $2.46
Marathon 466A $2.43
Shell Colony $2.53
Sam's Club $2.43
Race Trac $2.44
Circle K BP 441 $2.44
Shell Southern Trace $2.33
Murphy on 466 $2.33
WaWa $2.33
I really don't see that big a deal, to save a dime a gallon I've got to drive 9 miles each way to 466 to buy my gas. It looks like Walmart is inline with the 441 dealers plus I prefer the convenience of Walmart or Marathon here in the southern area. Also with Walmart grocery stores, you'll save much more over Publix or Winn Dixie. I'll take the Walmart store and gas station anyday.
GasBuddy: For the Perfect Pit Stop