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Open data · every figure carries its source

Largest in this registry
#1
of 84,014 with a recorded tonnage
Largest lng carrier
#1
of 250 of this type with a recorded tonnage
Fleet rank
—
No operator attributed to this ship
In brief
Prelude FLNG is a floating liquefied natural gas (FLNG) platform owned by Shell plc and built by the Technip–Samsung Consortium (TSC) in South Korea for a joint venture between Royal Dutch Shell, KOGAS, and Inpex. The hull was launched in December 2013.
It is 488 metres (1,601 ft) long, 74 metres (243 ft) wide, 105 m (344 ft) tall, and made with more than 260,000 tonnes of steel, beating Seawise Giant (the previous record holder) as the world's longest vessel. The vessel displaces around 600,000 tonnes when fully loaded, more than five times the displacement of a Nimitz-class aircraft carrier. It is the world's largest FLNG platform, as well as the largest FLNG facility constructed to date.
Vessel particulars
Every value is as recorded in the source. Blanks are values the source does not hold — none is estimated from a sister ship or a class average.
Identification
Construction
Measurements
In context
Every figure in this section is a count, a rank or a percentile over vessels actually held in this registry — not over the world fleet, which is larger. Nothing here is estimated.
At 499,167 gross tons, Prelude FLNG is the 1st largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT, so this hull is about 83 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 270 lng carriers held here, it ranks 1st by tonnage — larger than 100% of that group. Their median tonnage is 105,826 GT, and the largest tenth begin at 128,416 GT. The flag most often flown by this group is Marshall Islands (37 ships). The yard that appears most often against it is Samsung Heavy Industries, with 39 hulls on record.
Australia is the country of registry for 466 vessels in this directory, of which Prelude FLNG is the 1st largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (351 ships), and the median vessel measures 439 GT. Browse every ship flagged Australia.
Narrowing to both dimensions at once, this registry holds 2 lng carriers flying the Australia flag, of which none is larger than Prelude FLNG.
Prelude FLNG was built in 2017, making it 9 years old. It is one of 1,468 hulls in this registry delivered that year, a cohort whose median tonnage is 26,213 GT; within it this ship is the 1st largest. Across the whole of the 2010s the registry holds 20,111 vessels, median 23,456 GT. The median build year across the entire registry is 1995.
The registry attributes 826 vessels to Samsung Heavy Industries, with a median tonnage of 75,201 GT, delivered between 1980 and 2025. See the rest of that yard’s output.
At 488.8 m overall, Prelude FLNG is 200.8 m longer than the 288.0 m median for lng carriers on record, with a beam of 74.1 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9648714 this registry holds 51 other vessels, whose median build year is 2013 and which range from 2011 to 2017. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2017.
Its IMO number, 9648714, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 6×6 + 4×5 + 8×4 + 7×3 + 1×2 = 174 — and the last digit of that total, 4, must equal the seventh digit, 4. It does, so this number is well formed.
Nearest by tonnage among lng carriers
| Ship | Built | Gross tonnage |
|---|---|---|
| Prelude FLNG (this ship) | 2017 | 499,167 |
| MOL FSRU Challenger | 2017 | 169,293 |
| Al Samriya | 2009 | 168,189 |
| Lijmiliya | 2009 | 168,189 |
Same yard, same years
No ship class is recorded for this vessel, so these are not asserted to be sister ships — they are contemporaries from the same builder, shown because that is what the data supports.
Egina Fpso
2018 · 219,830 GT · Nigeria
OOCL Japan
2017 · 210,890 GT · Hong Kong

OOCL Hong Kong
2017 · 210,890 GT · Hong Kong
OOCL United Kingdom
2017 · 210,890 GT · Hong Kong
OOCL Scandinavia
2017 · 210,890 GT · Hong Kong
OOCL Indonesia
2018 · 210,890 GT · Hong Kong

ONE Trust
2017 · 210,678 GT · Marshall Islands

MOL Tradition
2017 · 210,678 GT · Japan
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from Prelude FLNG on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy Dr. Karl-Heinz Hochhaus, reused under CC BY 3.0.