They've gone the way of the dinosaurs.
We still have a few Sinclair stations in Oklahoma but they are few and far between. I loved the green dinosaur as well. Our Safeway's are now all Homelands. Texaco disappeared very quietly, which was surprising Pete used to install and build their gas tanks and stations. The last Piggly Wiggly I know of in OK disappeared a few years back. Haven't seen a Woolco since I was a kiddo. I remember T G & Y closing, my friend's dad was a buyer for them and lost his job :-(.
I mentioned Hillbilly BBQ in my first post. They would have these little stands at the grocery store where they sold bbq sandwiches for like 10 cents a piece or a dozen for a dollar. They were so good. As a kid I didn't realize they were showcasing their sauce which you could buy and make your own. I wish I could find it today, it was the best stuff.