The Oil Rig Crane is a minor villain in Cars 2 who works for Professor Z.
It might be the secret lair of the Professor. The Crane is seen at the beginning, when Finn McMissile is leaded to this place by Tony Trihull, a combat ship. When Finn is discovered by the lemon cars, the Crane tries to stop him but it makes him manage to escape.
It is unknown what happened to the Crane afterwards.