welcome, its good to have you on board!
note that the more info you include in a post, the better we are able to help you diagnose/correct a problem
at first thought it sounds like your valve stem seals.
if you want to do further testing before tearing it apart, it would be wise to do compresion tests dry and then wet (with oil). if the wet test gives higher readings, you're leaking around the rings. a small difference is normal, but a large difference means rings are worn out.
depending on your engine's age/history, its likely that both may be getting worn out