We have quite a few when you add the idependant dealers around here.
Mobil... which is exxon
Shell
BP
Clark... a local company been here for years
Speedway (and the old Super America's they bought out... which used to be owned by Ashland) (Valvoline)
Marathon
Citgo
Maas - independant
City Oil - independant right by my shop
Kwik Trip - independant chain in midwest
Phillips 66 - not may left around here -mostly small towns
Texaco - not many of those either-mostly small towns
Flying J - truck stop south of Milwaukee
T/A - Truck stop Wi/Il state line
I'm forgetting a few others I'm sure
I just remembered the Pilot down the interstate