We filled two cars at Kroger today to take advantage of our fuel points.
About 950 miles between the two on 32 gallons of fuel at $1.539 after points, so a decent deal.
Aside from the fuel points, I usually fill up at a Valero that's located on my commute. They tend to have the lowest fuel prices in the area and although the station is a little ghetto it is easy to get in and out of and has plenty of dispensers available.
My wife drives the newer Forester and in between orgies of cheap fuel at Kroger, it'll get taken either there or to the Valero for fuel.
It's often actually less costly to drive the additional miles to the Valero than it is to fill the car at either the nearby Speedway or Kroger, plus Valero is top tier, although Kroger might qualify as well were they inclined to pay the cost of admission based upon what others have written here about the detergent content of Kroger gas.