Casey's margin on gas was 45 cents per gallon in 2021-22, and has since "normalized" back to 35 cents per gallon. I'm curious what it is at the other regional chains.

High gas prices produce big profits for Ankeny-based Casey's General Stores
The gas station chain made about 10 cents more per gallon of fuel sold in May, June and July than it did at the same time last year.
www.desmoinesregister.com