OMG. I swear by Stila Stay All Day Foundation for oily skin and scar coverage. I have been using this foundation for almost a year now and it stays all day, even in the summer when I sweat a lot and my skin produces access oil, it comes through for me. It is very light and often I forget that I have makeup on, it does not clog pores and I recommend it for people with extremely oily skin like myself.
What I mostly love about this brand is that it is the only one that has a perfect shade for my skin tone.