Transportation and refining crude oil make an interesting project. This led to the development of a complete system, from an oil rig, to an oil loading platform, loading and transport to a refinery by oil tankers (ships), refining to avgas and LNG and onwards transportation by rail.
The oil rig handles passenger transport using the tugboat James Hart and helicopters. Ships operate on invisible track at ground level, and collect crude from the oil loading platform for transport to the refinery.
Helicopters may be used for passenger transport to the oil rig, with invisible track placed at any height to suit.
The refinery porcesses crude and LNG to produce AVgas, oil and LNG for onward transport by the rail tank cars.
My invisible track shows in Surveyor, but not in the minimap or Driver. Water level is set 3 metres below the track level.