Navalyze · Oil tanker · Ship

NORDIC STAR

IMO: 9748679
Type: Oil tanker
Average cargo carried: 87,307 t
Flag (estimated): Cayman Islands
Port of registry: George Town
Technical efficiency: EEDI 2.71 g CO₂/t·nm

ISM company (DoC holder) in 2025: Columbia Shipmanagement (Deutschland) GmbH · part of Columbia Shipmanagement

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 88,522 t of cargo on average.

Fuel kg/nm

196

Oil tanker median 129 kg/nm (+52%)

CO₂ per transport work (cargo)

6.96

g CO₂/t·nm · Oil tanker median 8.86 (−21%)

Average speed

11.3 kn

Oil tanker median 10.7 kn (+6%)

Fuel per day at sea

53.3 t/day

Fuel consumed

3,105 t

CO₂ emitted

9,775 t

Distance sailed

15,865 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,398 h

58 days, 16% of the year

Within the oil tanker fleet, 2025

Set against all 1,665 oil tanker ships with a full-year 2025 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 kg/nmThis ship 153 kg/nm · median 129 (+19%)

76.1Ranks 1,224 of 1,665, lowest first191

Average speedThis ship 10.2 kn · median 10.7 (−5%)

8.0Faster than 36% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 5.54 g CO₂/t·nm · median 7.95 (−30%)

4.51Ranks 350 of 1,665, lowest first27.7

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 ports1%
From the EU22%
Into the EU51%
At berth in the EU26%

Fuel burned laden

1,630 t

53% of all fuel; 48% in ballast or unladen

CO₂ at berth

2,547 t

26.1% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

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 kg/nm

NORDIC STAR
Oil tanker median

120.0140.0160.0180.0200.0

’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

NORDIC STAR
Oil tanker median

9.510.010.511.011.512.0

’192019’202020’212021’222022’232023’242024’252025

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

NORDIC STAR
Oil tanker median

4.06.08.010.0

’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.6 kn	+22%	+16%	−60%	−10%	0.6 kn slower, fuel per mile up 22%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.3 kn	−18%	−21%	+31%	−2%	Same speed, fuel per mile down 18%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.3 kn	+23%	+21%	+125%	+8%	0.3 kn slower, fuel per mile up 23%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.1 kn	−36%	−36%	+36%	−17%	Same speed, fuel per mile down 36%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.4 kn	+12%	+9%	−65%	−25%	0.4 kn slower, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.7 kn	+7%	+14%	+5%	+106%	0.7 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine or trade).

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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Columbia Shipmanagement (Deutschland) GmbH	3,891	12,284	25,397	2,480	10.2	153	5.54	72%
2024	Columbia Shipmanagement-GEU	8,035	25,142	63,858	5,936	10.8	126	6.15	61%
2023	not published	7,486	23,488	48,608	4,366	11.1	154	6.26	52%
2022	not published	2,701	8,453	21,569	1,900	11.4	125	5.78	50%
2021	not published	3,105	9,775	15,865	1,398	11.3	196	6.96	53%
2020	not published	7,859	25,197	44,986	3,851	11.7	175	9.24	–
2019	not published	6,959	21,873	42,731	3,891	11.0	163	4.48	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Columbia Shipmanagement (Deutschland) GmbH	5.54	7.95	−30%	350 of 1,665	ABS	A
2024	Columbia Shipmanagement-GEU	6.15	8.06	−24%	500 of 1,787	ABS	A
2023	not published	6.26	8.44	−26%	492 of 1,797	ABS	B
2022	not published	5.78	8.51	−32%	406 of 1,961	ABS	B
2021	not published	6.96	8.86	−21%	581 of 1,789	ABS	B
2020	not published	9.24	9.03	+2%	959 of 1,870	ABS	B
2019	not published	4.48	8.83	−49%	180 of 1,919	ABS	B

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.