The oil heir, who has previously dated celebrities including Mischa Barton and Paris Hilton, was arrested and booked after crashing his Mercedes-Benz in Los Angeles in October (15).

Photographs of him drinking wine during dinner with Hilary Duff's estranged husband Mike Comrie at Matsuhisa in West Hollywood shortly before the accident subsequently surfaced, and according to, Davis' blood alcohol level was almost twice the legal limit.

Now authorities have officially charged him with DUI.

Davis, who suffered minor injuries in the crash, is no stranger to the law - he pleaded guilty to cocaine possession in 2011.