>Sheetz has 600+ locations and does $8b a year. All corporate owned and operated

600+ seems like a big number until you consider that there are 168,000 gas stations in the US. Large chains have a LONG way to go until they are more than a statistical blip, and this doesn't even take into account the fact that the federal government has, for over a century, cast a very jaundiced eye at any single entity using its market presence to drive competitors out of the retail gasoline business via undercutting on prices. Looking at the FTC ruling on the acquisition of Sunoco's fuel retail locations by 7-11, they monitor competition in fuel retailing VERY closely, to the point of mandating a certain degree of competition in specific markets.

https://www.ftc.gov/news-events/press-releases/2018/03/ftc-a...