Michael
Point taken. I think we should give it a go, then. If you've got him here, why not use him? I mean, we already learned some knowledge about what happens in the future, that's provided he's telling the truth. Which is always debatable.
In any case, if we were to do that it could keep him weak enough to keep him trapped long enough for us to come up with a long term solution to get rid of him. If the Winchesters don't want to cough up any holy oil, Dean owes me several favours and I could probably convince him to give us some.