Good evening. I found this map online. I'm a roadgeek, so I get a kick out of seeing old highways that have been renumbered like I-86 and CT-32, but this map also shows locations of Texaco stations near major highways in 1974. I found a local source for oil company maps, but this is the best one I've seen when it comes to listing station locations.

http://gis.massdot.state.ma.us/images/historicmaps/texaco_1974.pdf