Prelude FLNG is a very large floating liquefied natural gas project for Royal Dutch Shell. It is the largest vessel ever made; it is 488 metres (1,601 ft) long, 74 metres (243 ft) wide, and made with more than 260,000 tonnes of steel. In operation, it would weigh more than 600,000 tonnes; more than five times the weight of the largest aircraft carrier.
The hull was launched in December 2013. Read more about Prelude FLNG