I've lived here in western Kentucky for 3-1/2 years now. On my 40 acres there are shagbark, shellbark, pignut, bitternut and mockernut hickories.
That tree is definitely NOT a shagbark or shell bark. I think the bark is atypical of any of the hickories on my place, BUT, the leaves and fruit are definitely pignut.
Great news is, pignut is the strongest of the hickories.
Jim Davis