There's a comparison of some world gasoline prices here - a bit out of date (Jan. 03) but it shows some of the differences. Just before the war our prices (southern Ontario) went up to about 10-20% higher than the Canadian price shown on that site, now they're back down to slightly higher. And of course there's LOTS of regional variation. Diesel used to be cheaper than gasoline, but now I think is slightly more here.
The prices shown for European countries are for "premium", N. American prices are for "regular" (why is this?) but even so, our prices are MUCH less than the rest of the world. I'm a believer that North American gas prices are way too low to support the burden that vehicle transport puts on our environment and infrastructure. Yes I drive a car, and no I don't like paying more at the pump, but I don't like dirty air either. And as the world gets smaller but its population gets larger, there are other reasons why we should be weaning ourselves off cheap energy.