Also, most gas stations don't make significant profits on gas. They make more profit on the attached convenience store. There are exceptions (e.g. near airport

Also, most gas stations don't make significant profits on gas. They make more profit on the attached convenience store. There are exceptions (e.g. near airport rental car returns, or in places where drivers aren't paying for their own gas — there used to be a Shell near San Mateo City Hall that always got on the front page of newspapers)