Not always! Lowest price also varies depending on which octane level and cash price is usually lower also. Fuel4 probably pays less rent; it sits on a very small area.

Gasbuddy usually lists most of these on their maps program and it changes often. There are others usually less than biggest brands (Speedway Lukoil Valero, etc). Costco is not near Holland Tunnel; their member prices are usually pretty good throughout US.