That sounds a lot like the situation I have with my wife, which was really hard to work when we first got together but was easily worked through with communication. You're both being selfish here, you a bit moreso than her.
First of all, put yourself in her place. Imagine having lots and lots of intercourse and enjoying it immensely but never actually having an orgasm. Every time. Shounds shitty eh? That's what your girl gets to deal with.
Second, sex is sex. Intercourse, oral, whatever you want to do; it's a means to an end, to have fun and hopefully have an orgasm in the end. If she cant get off from intercourse, then obviously oral is the next best choice, unless you want to go a vibrator (which can work just as well, but probably wont be a sensual for her). Although you might feel like you're being forced into having to give her oral every time, if you look at it from her point of view, you're controlling whether or not she gets to orgasm. There's a powerplay going on here and from either point of view it looks like the other is trying to be controlling. Try concentrating on giving more than receiving, it will show that you're not trying to control her (unless that's actually what she wants
). Hopefully that will lead her to return the favor. If not, then talk to her.
I agree with the other posters that it should not be a count, but it should also be balanced. Without that balance you'll both end up dissatisfied in the end.