A few days ago Instapundit had a link to a map of Castle Doctrine states.
Oregon's laws are not quite so simple. According to 161.219(2) it is lawful in Oregon to use deadly physical force against someone attempting to commit burglary in a dwelling. But defending a home in this way still leaves the defender vulnerable to a civil suit, which a failed ballot initiative desired to fix.
So in my state you can protect yourself if someone breaks into your home, but you might get sued in civil court.
That map I linked to above is not very reliable, in part because the author made some research errors, but mostly because the legal issues in any state tend to be pretty complex. Criminal versus civil court is but the tip of the iceberg compared to what happens in some states.