Pyroil Gasoline was a franchise operation that offered Pyroil blended gasoline to franchised dealers across the country, not unlike Ethyl, Eythlene, various Benzol blend brands, etc. The 2016 globe CD actually established an entire section of these franchised products that were not otherwise associated with a major oil company (Pyroil was still with Ashland though in that book). I've seen the photo you mentioned, and it was one of several that was used to promote the franchise. There is no mention of any other brand in the photo. I guess it could have been a Pyroil only station, but would still have been part of the franchise arrangement. Numerous ads exist from old industry publications to confirm this.
