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Open data · every figure carries its source

Unclassified
Operated by Transocean
Photo: U.S. Coast Guard photo by Petty Officer 3rd Class Barry Bena · Public domain · file
Largest in this registry
#19,128
of 84,014 with a recorded tonnage
Largest unclassified
#10,718
of 49,696 of this type with a recorded tonnage
Largest in its fleet
#7
of 11 in this fleet with a recorded tonnage
In brief
GSF Development Driller II is a fifth generation, Vanuatu-flagged dynamic positioning semi-submersible ultra-deepwater drilling rig owned and operated by Transocean. The vessel is capable of drilling in water depths up to 7,500 ft (2,300 m) with drilling depth of 35,000 ft (11,000 m), upgradeable to 37,500 ft (11,400 m).
Development Driller II was deployed in drilling a relief well on the Macondo Prospect to stop the oil spill caused by the explosion and subsequent loss of Deepwater Horizon.
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 30,236 gross tons, GSF Development Driller II is the 19,128th 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 5.0 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 58,086 vessels this registry holds no type classification for held here, it ranks 10,718th by tonnage — larger than 78% of that group. Their median tonnage is 5,358 GT, and the largest tenth begin at 54,309 GT. The flag most often flown by this group is Panama (5,698 ships). The yard that appears most often against it is HD Hyundai Mipo, with 615 hulls on record.
Vanuatu is the country of registry for 425 vessels in this directory, of which GSF Development Driller II is the 21st largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (208 ships), and the median vessel measures 2,446 GT. Browse every ship flagged Vanuatu.
Narrowing to both dimensions at once, this registry holds 208 vessels this registry holds no type classification for flying the Vanuatu flag, of which 9 are larger by tonnage.
GSF Development Driller II was built in 2005, making it 21 years old. It is one of 1,690 hulls in this registry delivered that year, a cohort whose median tonnage is 12,046 GT; within it this ship is the 528th largest. Across the whole of the 2000s the registry holds 18,605 vessels, median 9,957 GT. The median build year across the entire registry is 1995.
The registry attributes 1 vessels to PPL Shipyard Pte Ltd (primary), with a median tonnage of 30,236 GT, delivered between 2005 and 2005. See the rest of that yard’s output.
At 116.0 m overall, GSF Development Driller II is 1.0 m longer than the 115.0 m median for vessels this registry holds no type classification for on record, with a beam of 78.7 m and a draft of 17.0 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8765515 this registry holds 39 other vessels, whose median build year is 2002 and which range from 1972 to 2009. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2005.
Its IMO number, 8765515, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 7×6 + 6×5 + 5×4 + 5×3 + 1×2 = 165 — and the last digit of that total, 5, must equal the seventh digit, 5. It does, so this number is well formed.
Nearest by tonnage among vessels this registry holds no type classification for
| Ship | Built | Gross tonnage |
|---|---|---|
| Navig8 Gallantry | 2019 | 30,237 |
| Great Thita | 2020 | 30,237 |
| Navig8 Gauntlet | 2019 | 30,237 |
| GSF Development Driller II (this ship) | 2005 | 30,236 |
| Dignity | 2010 | 30,235 |
| Honesty | 2011 | 30,235 |
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from GSF Development Driller II on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy U.S. Coast Guard photo by Petty Officer 3rd Class Barry Bena, reused under Public domain.
| 2010 |
| 30,235 |