I have always had extremely oily skin and no sunscreen has ever played nice with it. This is the first time I've ever had a sunscreen not worsen, and in fact, appear to HELP my oiliness. It's also nice to have a facial sunscreen with an SPF higher than the "bare minimum" standard 15 that other face products seem to have. The only thing I would not like about this is that it's a very thin, watery texture, so that is hard to get used to. However, the way I use it, that doesn't really matter--I mix it with my liquid foundation. If you don't use a liquid, you might also be able to mix it with your moisturizer.
Anyway, I want to help out any ladies who have super oily skin here by sharing what I found that actually works ALL DAY--I dispense 1-2 pumps of Makeup 4 Ever Water Blend face & body foundation onto my fingers, then dispense a small amount of this sunscreen on top of that. Rub my fingers together to blend it together, then apply with my fingers to my face (after moisturizer). This has been THE ONLY THING to really, truly PUT A COMPLETE STOP to my oily skin. If I try anything else, I have to powder/the makeup migrates, etc. I have large pores, really pale skin with some redness, and this is excellent, very natural looking coverage, and I literally set it with face powder in the morning and don't have to touch it for the rest of the day. It's not drying at all, doesn't settle into my pores, and lasts forever even in Texas summer heat. With that said, if you wear glasses/sunglasses or scratch your face after you've been sweating or later in the day, it's possible you might see it streak/collect at that point, but when it happens, I can just rub it back in and it's fine.
I hope this helps, and I hope they don't delete this post since I mentioned another product by name, but I don't have a blog or any better way to share this information! I really think it's the combo of the two that's key.