The pricing seems odd to me also. Take for instance Safeway. I pass by three of them on my way to work every day. Each store has a different price. You would think chain like Safeway would have uniform pricing, but I guess not?
Sometimes it as much as a $0.10 per gallon difference from store to store.
Costco seems to have the same pricing at all their locations.
Bellingham has the states highest prices and they have a refinery nearby.