Navalyze · Oil tanker · Ship

NEPTUN

IMO: 9312511
Type: Oil tanker
Average cargo carried: 280,632 t
Port of registry: Majuro
Technical efficiency: EIV 2.64 g CO₂/t·nm

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 280,632 t of cargo on average.

Fuel per mile

292.6 kg/nm

Oil tanker median 139.8 kg/nm (+109%)

CO₂ per transport work (cargo)

3.26

g CO₂/t·nm · Oil tanker median 8.86 (−63%)

Average speed

12.1 kn

Oil tanker median 9.8 kn (+23%)

Fuel per day at sea

85.0 t/day

Fuel consumed

4,419 t

CO₂ emitted

13,818 t

Distance sailed

15,104 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,248 h

52 days, 14% of the year

Within the oil tanker fleet, 2018

Set against all 1,779 oil tanker ships with a full-year 2018 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel per mileThis ship 292.6 kg/nm · median 139.8 (+109%)

84.9Ranks 1,756 of 1,779, lowest first211.5

Average speedThis ship 12.1 kn · median 9.8 (+23%)

5.9Faster than 92% of oil tanker ships12.0

CO₂ per transport work (cargo)This ship 3.26 g CO₂/t·nm · median 8.86 (−63%)

4.26Ranks 107 of 1,779, lowest first23.59

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2018

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports0%
From the EU72%
Into the EU19%
At berth in the EU10%

Fuel burned laden

91%

9% in ballast or unladen

CO₂ at berth

9.8%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

Uplift from CH₄ and N₂O, counted in full from 2026

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2018	not published	4,419	13,818	15,104	1,248	12.1	292.6	3.26	91%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2018	not published	3.26	8.86	−63%	107 of 1,779	ABS	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Oil tanker ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's oil tanker ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.