Okinoshima Maru

At 130,841 gross tons, Okinoshima Maru is the 2,002nd 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 22 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 3,060 oil tankers held here, it ranks 320th by tonnage — larger than 89% of that group. Their median tonnage is 22,184 GT, and the largest tenth begin at 149,274 GT. The flag most often flown by this group is Panama (301 ships). The yard that appears most often against it is HD Hyundai Mipo, with 190 hulls on record.

Japan is the country of registry for 2,663 vessels in this directory, of which Okinoshima Maru is the 59th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (1,534 ships), and the median vessel measures 764 GT. Browse every ship flagged Japan.

Narrowing to both dimensions at once, this registry holds 156 oil tankers flying the Japan flag, of which 9 are larger by tonnage.

At 337.0 m overall, Okinoshima Maru is 158.0 m longer than the 179.0 m median for oil tankers on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 7016565 this registry holds 57 other vessels, whose median build year is 1970 and which range from 1955 to 1977. That places this hull’s registration in the same part of the series; no build year is recorded for this vessel itself.

Its IMO number, 7016565, carries its own check digit. The first six digits are weighted seven down to two and summed — 7×7 + 0×6 + 1×5 + 6×4 + 5×3 + 6×2 = 105 — and the last digit of that total, 5, must equal the seventh digit, 5. It does, so this number is well formed.