At 57,335 gross tons, Ensco DS-8 is the 8,544th 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 9.6 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 911 rig / offshore units held here, it ranks 74th by tonnage — larger than 91% of that group. Their median tonnage is 9,254 GT, and the largest tenth begin at 51,732 GT. The flag most often flown by this group is Liberia (179 ships). The yard that appears most often against it is Hanwha Ocean, with 27 hulls on record.
Marshall Islands is the country of registry for 3,838 vessels in this directory, of which Ensco DS-8 is the 853rd largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (2,407 ships), and the median vessel measures 32,987 GT. Browse every ship flagged Marshall Islands.
Narrowing to both dimensions at once, this registry holds 117 rig / offshore units flying the Marshall Islands flag, of which 15 are larger by tonnage.
Ensco DS-8 was built in 2015, making it 11 years old. It is one of 1,804 hulls in this registry delivered that year, a cohort whose median tonnage is 25,303 GT; within it this ship is the 312th 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 227.8 m overall, Ensco DS-8 is 153.8 m longer than the 74.0 m median for rig / offshore units on record, with a beam of 42.0 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9659531 this registry holds 69 other vessels, whose median build year is 2014 and which range from 2012 to 2019. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2015.
Its IMO number, 9659531, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 6×6 + 5×5 + 9×4 + 5×3 + 3×2 = 181 — and the last digit of that total, 1, must equal the seventh digit, 1. It does, so this number is well formed.
