Navalyze · Oil tanker · Ship

STEN IDUN

IMO: 9261102
Type: Oil tanker
Average cargo carried: 8,273 t
Flag (estimated): Gibraltar
Port of registry: Gibraltar
Technical efficiency: EIV 14.48 g CO₂/t·nm
Ice class: IA

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 7,547 t of cargo on average.

Fuel kg/nm

59.4

Oil tanker median 140 kg/nm (−58%)

CO₂ per transport work (cargo)

25.2

g CO₂/t·nm · Oil tanker median 8.86 (+185%)

Average speed

6.8 kn

Oil tanker median 9.8 kn (−31%)

Fuel per day at sea

9.7 t/day

Fuel consumed

2,690 t

CO₂ emitted

8,625 t

Distance sailed

45,311 nm

CO₂ ÷ CO₂ per mile

Time at sea

6,655 h

277 days, 76% 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 kg/nmThis ship 64.9 kg/nm · median 129 (−50%)

76.5Ranks 95 of 1,789, lowest first194

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

8.1Faster than 38% of oil tanker ships12.3

CO₂ per transport work (cargo)This ship 25.2 g CO₂/t·nm · median 8.86 (+184%)

4.75Ranks 1,608 of 1,789, lowest first25.2

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 ports49%
From the EU18%
Into the EU25%
At berth in the EU9%

Fuel burned laden

–

Not reported

CO₂ at berth

761 t

8.8% 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

STEN IDUN
Oil tanker median

50.075.0100.0125.0150.0

’182018’192019’202020’212021

Average speed, kn

STEN IDUN
Oil tanker median

6.08.010.012.0

’182018’192019’202020’212021

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

STEN IDUN
Oil tanker median

5.010.015.020.025.030.0

’182018’192019’202020’212021

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2020→2021	−0.4 kn	+3%	−1%	+5%	+13%	0.4 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.7 kn	−2%	+33%	−8%	−20%	2.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2018→2019	+1.1 kn	+8%	+24%	−0%	+10%	1.1 kn faster, fuel per mile up 8%; 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
2021	not published	2,854	9,150	43,975	4,296	10.2	64.9	25.2	–
2020	not published	2,628	8,426	41,803	3,933	10.6	62.9	22.3	–
2019	not published	2,890	9,241	45,237	5,759	7.9	63.9	27.8	–
2018	not published	2,690	8,625	45,311	6,655	6.8	59.4	25.2	–

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	25.2	8.86	+184%	1,608 of 1,789	DNV	A
2020	not published	22.3	9.03	+147%	1,619 of 1,870	DNV	A
2019	not published	27.8	8.83	+215%	1,767 of 1,919	DNV	A
2018	not published	25.2	8.86	+185%	1,622 of 1,779	DNV	A

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.