CCW is good throughout the state, but OC is prohibited in a few towns. Where are you going in WV?
Actually, OC is legal nearly EVERYWHERE in WV, with the exception of the Capital Grounds in Charleston. And there, it's a complete carry ban regardless of mode of carry--OC or CC.
Martinsburg (out in the Eastern Panhandle) attempted to institute an OC ban, but changed it after threatened with a lawsuit, and now just has a carry ban (ALL forms) inside city-owned buildings.
I know of no other cities or municipalities that have a carry ban that is legal under WV law.
Perhaps the folks from WVCDL can correct me if I am mistaken on this...