The chuck eye steak comes from the upper shoulder of the beef, the region butchers refer to as the chuck primal.
"Tender rib-eyes come from the sixth to twelfth ribs of a cow; butchers cut the chuck eye from the fifth rib. This proximity means the chuck eye steak shares many of the characteristics of a rib-eye. Although chuck eye steaks aren't always available—there are just two per cow—they tend to be a budget-friendly cut of meat when you can find them." Read more about Chuck Eye Steaks at The Spruce Eats.