WHOA
I advise you to maybe go to a Service Station and get the necessary things done. Please be very careful. I think the Engine Oil might be fine but you certainly would have to change the Fuel Filter so I do not advice you to just start the car and go as there might be some Engine Damage.
The Engine would also choke a lot before starting up and there might be some heavy vibration.
Good luck and please try to avoid such things in the future.