Which MAC primer is best for my skin type? Is Refined Zone good?

I also have oily skin, but I prefer the Prep + Prime Face Protect with SPF 50. It's a lotion like consistency, but it holds like glue and really helps keep my makeup in place and controls the oiliness you're really unsure of which would be best for you, get samples. I don't reccomend the line filler, simply because that's not going to do anything for your oily skin.