Mariner B

At 91,159 gross tons, Mariner B is the 4,524th 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 15 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 2,402 tankers held here, it ranks 83rd by tonnage — larger than 96% of that group. Their median tonnage is 8,256 GT, and the largest tenth begin at 42,340 GT. The flag most often flown by this group is Panama (219 ships). The yard that appears most often against it is HD Hyundai Mipo, with 175 hulls on record.

Mariner B was built in 2016, making it 10 years old. It is one of 1,628 hulls in this registry delivered that year, a cohort whose median tonnage is 26,388 GT; within it this ship is the 234th 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 250.3 m overall, Mariner B is 111.3 m longer than the 139.0 m median for tankers on record and a draft of 18.2 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9710347 this registry holds 68 other vessels, whose median build year is 2015 and which range from 2013 to 2019. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2016.

Its IMO number, 9710347, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 7×6 + 1×5 + 0×4 + 3×3 + 4×2 = 127 — and the last digit of that total, 7, must equal the seventh digit, 7. It does, so this number is well formed.