I had a Shell card for quite a few years. used it often. Then, in the past 2 years or so, they closed every Shell station within 20 miles of my house. They then closed my account for "non-use". When I called their customer service, I was told I "could always apply again". What a deal !
Sunoco, Valero, BP, Conoco, EXXON, Gulf, all offer "same as cash (price)" if you use their card at their stations. (Sometimes as much as 9 -10 cents/gallon)
Years ago, I used to have a Texaco card...used it quite a bit...however, in Benson, AZ, I pulled into a Texaco station, pump would not take the card. Was told "we're not the same Texaco". Still don't understand that one.
I can only guess that the folks starting in Texas, (at least on I-10)have (politically conservative) problems with foreign communist governments. (More than the (quite more) liberal east coast) To wit: the CITGO brand....from Venezuela. EVERY (former) CITGO station I took note of, had the CITGO sign covered and another brand showing.
I wrote CITGO about it, suggesting the "political climate" issue, of course, as expected, they denied it...called it "business decisions" and "matters of supply" . My CITGO card expired and they never offered to renew it and I never did. No biggie. ;)
Interesting.