I see where a value has been put on Sunoco's stations of around $2 billion. Problem is, they mention 4,900 stations, Sunoco does not own that many, maybe 800. Sunoco has been in the mode of selling stations to dealers for years.
There isn't much money to be made in retail gasoline. I've been in it for 20 years. The credit card fees eat up a large portion of the retail margin. Overall consumption is way down and will remained depressed. There are some exceptions...sites with little competition and freeway exit locations can usually get higher margins. Locking up retail sites for thru-put for your own refinery also makes sense. jmo