The Regimen shouldn't make you oilier. If anything, the mix of treatment and daily moisturizer might even help abate oil production if you're making a conscious effort to keep your skin in balance. But yes, oily skin is a huge problem for some people, myself included. I still battle oily skin off and on. Lately I've found getting adequate amounts of EPA omega 3 has helped calm my oily skin. I found a high potency fish oil (Natural Factors Ultra Strength RxOmega-3 w/ 900 mg EPA/DHA) and take 2-4 every day, plus eat a can of King Oscar sardines every day as well. 

But don't let oily skin stop you from treating your acne if it's out of control!

Hope I've been helpful!

wash face with cleanser once a day only
apply acne treatment once a day too, it will work better and less irritated skin
take vitamin D3, a lot good reviews to combat oily skin