I've taken 2 courses of Accutane. The first time I took it because my face was severely broken out, and I was put on about 8 or 9 perscription drugs that didn't work prior to that. (You have to be careful because my first dermatologist was a quack. He kept putting me on antibiotics until I became immune to them. Now if I have an infection I can't take them because they don't work.)
ANYway.....The first time after taking a 5-month course my skin stayed clear and non-oily for about a year. Then it got bad again, but not as bad as it originally was. It was mostly just oily with an occasional breakout. Then I took a 2nd course, but only for 3.5 months because I had severe side effects. (I honestly thought I had an STD, but it turned out to be the Accutane.

As soon as I went off the drug the side effects stopped.) I've been off the drug for almost 3 years now and a few months ago my skin started getting extremely oily again but the breakouts are at a minimum.
Since my skin tends to be so oily I just use OXY face wash and use a non comedogenic moisturizer after. But if you don't have oily skin I wouldn't recommend OXY because it can really dry out your face.
Good luck.