Hopefully, this won't cause any ecological disasters in Legoland. This ridiculously massive Lego oil rig is more than a metre tall and wide, and weighs over 40kg. According to The Brothers Brick, Lego master Tobias Vogt spent three months building this, and it shows in the detailed build-out.
Not only does the outside of the rig feature details like walkways with handrails, lifeboats, and a helipad, but Vogt built the interior with rooms based on real oil refinery processes. Check out some pictures of the "Catalytic Reformer" and "FCC Feed Hydrotreater" sections below, and you can find more shots and detail at his flickr page.