Anyone on the Top Tier list.
http://www.toptiergas.com/retailers.html
TOP TIER Gasoline Retailers:
76
Aloha Petroleum
Chevron
Chevron Canada
Conoco
CountryMark
Entec Stations
Esso
Exxon
Kwik Trip / Kwik Star
MFA Oil Co.
Mileage Stations
Mobil
Petro-Canada
Phillips 66
QuikTrip
Rebel Oil
Road Ranger
Severson Oil
Shell
Shell Canada
Sunoco Canada
Texaco
The Somerset Refinery, Inc.
Tri-Par Oil Co.
Turkey Hill Minit Markets
U.S. Oil