No, a light oiling won't do. In fact, Warmoth voids the guarantee on their maple necks/bodies if they're not finished. Some folks like to use tung oil if they can't, won't or don't want to spray a more durable finish on. I don't know if that's good enough either; someone here may chime in and relate their experience. Shellac can be rubbed on, but it's not very robust, either. If you haven't ordered the neck yet, you might want to consider a wood like Canary. It's hard, attractive and feels good while not requiring any finish at all.