Largest offshore gas platform
- Who
- Troll
- What
- 656,000 tonne(s)/metric ton(s)
- Where
- Norway (North Sea)
- When
- 01 January 0001
The Troll Offshore Gas Platform, located off Norway in the North Sea, is the heaviest man-made mobile object ever made, with a dry weight of the 369-m gravity base structure at 656,000 tonnes. It was made from 245,000 cubic metres of concrete, (the equivalent to 215,000 foundations for ordinary homes) and 100,000 tonnes of steel (approximately 15 Eiffel towers).
Owned by Shell Oil, the platform was constructed by Norwegian Contractors from July 1991 at a cost of NOK 4,150 million.