Top Silver Oak Casino Promo Codes & BonusesĪt the time of this writing, there aren’t any no deposit bonuses available. Despite this, we were quite disappointed to see that they don’t offer a sportsbook which in turn means that you won’t get any sports bonuses at Silver Oak. As you can see from the table above, Silver Oak offers a few great casino bonuses that can be used toward most of the games offered on their site.