Shell in Potomac Mills (2600 Prince William Pkwy)

Convenient, prices posted,

No restrooms or coffee because this is a freestanding station a very short distance from the Costco store. Attendant always present. Plenty of pumps; always busy because of the prices. You get 4% back if you have their charge card !

This station is well maintained on the outside - and well lighted at night. I have not been inside the convenience store - so I cannot comment on it nor the restrooms.