Navalyze · Oil tanker · Ship

CELSIUS ROME

IMO: 9392389
Type: Oil tanker
Average cargo carried: 20,979 t
Port of registry: Majuro
Technical efficiency: EIV 7.57 g CO₂/t·nm

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 20,979 t of cargo on average.

Fuel per mile

98.4 kg/nm

Oil tanker median 128.8 kg/nm (−24%)

CO₂ per transport work (cargo)

14.87

g CO₂/t·nm · Oil tanker median 8.86 (+68%)

Average speed

11.6 kn

Oil tanker median 10.7 kn (+8%)

Fuel per day at sea

27.3 t/day

Fuel consumed

2,082 t

CO₂ emitted

6,604 t

Distance sailed

21,170 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,832 h

76 days, 21% of the year

Within the oil tanker fleet, 2021

Set against all 1,789 oil tanker ships with a full-year 2021 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 98.4 kg/nm · median 128.8 (−24%)

76.5Ranks 472 of 1,789, lowest first194.0

Average speedThis ship 11.6 kn · median 10.7 (+8%)

8.1Faster than 72% of oil tanker ships12.3

CO₂ per transport work (cargo)This ship 14.87 g CO₂/t·nm · median 8.86 (+68%)

4.75Ranks 1,372 of 1,789, lowest first25.20

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2021

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 ports5%
From the EU45%
Into the EU36%
At berth in the EU14%

Fuel burned laden

–

Not reported

CO₂ at berth

14.1%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The Oil tanker median is the middle ship of all oil tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

CELSIUS ROME
Oil tanker median

90.0100.0110.0120.0130.0140.0

’202020’212021

Average speed, kn

CELSIUS ROME
Oil tanker median

10.510.811.011.311.511.8

’202020’212021

CO₂ per transport work (cargo), g CO₂/t·nm

CELSIUS ROME
Oil tanker median

8.010.012.014.016.0

’202020’212021

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2020→2021	−0.1 kn	+3%	+2%	−9%	+44%	Same speed, fuel per mile up 3%; in line with the speed change.

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

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
2021	not published	2,082	6,604	21,170	1,832	11.6	98.4	14.87	–
2020	not published	2,232	7,001	23,347	2,002	11.7	95.6	10.35	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2021	not published	14.87	8.86	+68%	1,372 of 1,789	ClassNK	C
2020	not published	10.35	9.03	+15%	1,096 of 1,870	ClassNK	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.