I'd like you to notice something—Chevron is trying to trick you. The lowest-priced fuel (87 octane) is on the far right. The price gets higher as you go left, with the highest-priced Supreme Plus fuel (94 octane) having its own separate nozzle, which is coloured bright red, on the far left side of the payment console. (The nozzle for the other grades is a subtle blue.)
I can think of only one reason for that, and it's one that's hostile to Chevron's customers. In a society where we read left to right, and would normally expect prices to go from low on the left to high on the right, this pump is designed to bamboozle drivers who are in a hurry and not paying close attention. In a rush, they press what they intuitively assume would be a lower-priced button (on the left), but actually get a higher-priced blend instead. That happened to me a few times when Chevron first introduced this style of pump a decade or two ago.
Worse, if you're particularly distracted, the pump for Supreme Plus can look like a separate single nozzle, and it's possible to pick the most expensive fuel without realizing it until it's too late. Up on the big price sign next to the station, we generally only see the price for the lowest-cost fuel, but the pumps themselves conspire to fool you into buying something that costs more. It's not a big thing to pay attention to if you want to avoid the ruse, but I notice a bit of a cognitive load when I encounter it. And of course, the digital price indicators have the smallest print in each section; you can hardly even see them in my photo.
Most modern economy cars—which is what most Canadians, like my family, drive—don't require anything more than the basic grade fuel. I fully expect that gas stations sell far more of that standard grade than their higher-priced varieties, so the design of pumps ideally should make it easy for the majority of people to find what they want. It might make the most sense for standard 87-octane blend to be the one with its own nozzle, and for the price to go up left to right overall. But that's not what's happening here.
Overall, Chevron is no more or less controversial than other oil companies. I like their claymation commercials and their Town Pantry convenience stores. But because of this pump design problem, I usually don't buy my gas at their stations.