A large Menard's store nearby (northern Illinois) has Rotella in 10w30, 15w40, and 5w-40. That store also had other automobile motor oils, oil and air filters, bulbs, headlights, spark plugs, etc. A smaller Menard's store only had a small selection of automobile motor oil, 2 stroke oil and such.
I'm was curious on my own behalf because after the current ARX treatment, 10w30 Rotella is going into both of my Jeeps. A previous post on another thread suggested Lowe's, and I have been on the alert. The Lowe's near me didn't stock Rotella.
Good luck with your oil hunt!