Oh no...I know this is such a problem, I have an oil issue too, but I have managed to keep it at bay just by using products specifically designed for oily skin. Since it is just my Tpanel that is oily I used combination skin products which did not help. I needed something more effective on this oil strip!
Start with a face cleanser for oily skin - go for neutrogena or alpha hydrox face wash.
remember to use a moisturizer for oily skin as well. I at some stage thought my oily skin would only get worse with a moisturizer but I slowly but surely started using it to try and teach my face that I was taking control of this and that my skin did not need to secrete its own moisture. Night time was the most important for me!
If you can find a nice mask that PEELS off instead of washes off, these help to keep the moisture locked in.
Ok, so we have cleanser and moisturizer. Then remember your foundation and make up is the most important thing. the moisturizer soaks in but its the make up that has to take the beating from the constantly secreting oil glands!
Oily skin can really benefit from using primers. Go for one of the smashbox products. They are really top quality and have excellent reviews. I use ben nye banana powder as a setting powder as well. It's a highlighter so take it easy.
All of these products are designed for oily skin and to take the constant secretion of oil for at least 8 hours running, some of them promise up to 12 hours!
Good luck