Agreed...your statement makes no sense. I see ATM vol for Apr calls at 46.5. 35D calls are around 49. ATM puts are 45.5, while 35D puts are around 44.2.
Makes sense to me that OTM calls are more expensive than OTM puts for crude (for obvious reasons). The question you have to ask yourself, heech, is if these vols make sense. If not, then you might have a trade. I'm not a crude guy so I can't help you with this one, but generally this is where I would start.
Maybe some savvy crude options posters can comment.