Well 2 years ago I worked at a gas station, yes Exxon/Mobil are the same company so I doubt the Ex-CEO of coke would make that mistake, however there’s are multiple companies besides Exxon/Mobil that control the other percentages of the market. One would have to do serious research into franchises to find what franchise uses Exxon and what uses companies like shell. Further more it wouldn’t surprise me if Exxon when and sold there oil at a reduced price to the competing companies to stay afloat until normality returns to the consistent buying.