I've tried steak in the oven before with decent results.
IIRC, I heated to 425 or so, put the cast iron skillet in the oven with just enough oil to cover the bottom. And got it nice and hot. Then, I put the steak along with some mushrooms and onions (very thin sliced) into the pan and put it back in for about 10 minutes or so.
Came out nice. It wasn't a ribeye though. I think I was experimenting and just used sirloin or something.
This post was edited on 10/22 at 8:49 am