The convenience side is where the money’s at. Speaking to a manager with MFA maybe 13 years ago which ran a group of stations in Missouri about a hole in the wall station and store in Columbia, MO. The convenience store side was maybe 20’x20’ but he said they sold over $100,000/month in junk (pop, cigarettes etc). Tremendous mark-up, some of the larger stores in busy areas have to be doing tremendous volume.
The MFA in Bunker, MO is a two pump operation. I always wondered how they stayed in business..