Navalyze · Oil tanker · Ship

STEN FJELL

IMO: 9460241
Type: Oil tanker
Average cargo carried: 13,088 t
Flag (estimated): Portugal
Port of registry: Madeira
Technical efficiency: EEXI 7.57 g CO₂/t·nm
Ice class: IA

ISM company (DoC holder) in 2025: Rederiet Stenersen AS

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 10,784 t of cargo on average.

Fuel kg/nm

77.2

Oil tanker median 129 kg/nm (−40%)

CO₂ per transport work (cargo)

22.9

g CO₂/t·nm · Oil tanker median 8.44 (+172%)

Average speed

10.1 kn

Oil tanker median 11.0 kn (−8%)

Fuel per day at sea

18.7 t/day

Fuel consumed

2,875 t

CO₂ emitted

9,217 t

Distance sailed

37,258 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,688 h

154 days, 42% 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 79.7 kg/nm · median 129 (−38%)

76.1Ranks 208 of 1,665, lowest first191

Average speedThis ship 10.0 kn · median 10.7 (−7%)

8.0Faster than 30% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 19.5 g CO₂/t·nm · median 7.95 (+146%)

4.51Ranks 1,384 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2023

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 ports58%
From the EU14%
Into the EU11%
At berth in the EU17%

Fuel burned laden

–

Not reported

CO₂ at berth

1,536 t

16.7% 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 FJELL
Oil tanker median

60.080.0100.0120.0140.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

STEN FJELL
Oil tanker median

4.06.08.010.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

STEN FJELL
Oil tanker median

0.010.020.030.040.0

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.2 kn	−3%	−4%	+30%	−21%	Same speed, fuel per mile down 3%; in line with the speed change.
2023→2024	+0.1 kn	+6%	+7%	−3%	+8%	Same speed, fuel per mile up 6%; in line with the speed change.
2022→2023	+0.2 kn	−4%	−3%	+3%	−20%	Same speed, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2021→2022	−1.1 kn	+4%	−6%	+26%	−8%	1.1 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.0 kn	−13%	−14%	−27%	−13%	Same speed, fuel per mile down 13%; better than speed alone explains (hull, engine or trade).
2019→2020	+4.0 kn	+8%	+68%	+5%	+2%	4.0 kn faster, fuel per mile up 8%; better than speed alone explains (hull, engine or trade).
2018→2019	+2.1 kn	+5%	+50%	+21%	+25%	2.1 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).

Part-year reports are left out of these comparisons. 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	Rederiet Stenersen AS	3,756	12,043	47,138	4,710	10.0	79.7	19.5	–
2024part-year	Rederiet Stenersen AS	2,858	9,163	34,905	3,432	10.2	81.9	25.0	–
2024	Rederiet Stenersen AS	2,959	9,486	36,137	3,559	10.2	81.9	24.7	–
2023	not published	2,875	9,217	37,258	3,688	10.1	77.2	22.9	–
2022	not published	2,914	9,342	36,050	3,628	9.9	80.8	28.6	–
2021	not published	2,230	7,148	28,655	2,614	11.0	77.8	31.2	–
2020	not published	3,500	11,222	39,033	3,542	11.0	89.7	36.0	–
2019	not published	3,101	9,943	37,174	5,290	7.0	83.4	35.4	–
2018	not published	2,433	7,800	30,670	6,223	4.9	79.3	28.2	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Rederiet Stenersen AS	19.5	7.95	+146%	1,384 of 1,665	DNV	B+C
2024part-year	Rederiet Stenersen AS	–	–	–	–	DNV	B+C
2024	Rederiet Stenersen AS	24.7	8.06	+207%	1,594 of 1,787	DNV	–
2023	not published	22.9	8.44	+172%	1,592 of 1,797	DNV	B+C
2022	not published	28.6	8.51	+236%	1,812 of 1,961	DNV	A
2021	not published	31.2	8.86	+252%	1,660 of 1,789	DNV	A
2020	not published	36.0	9.03	+299%	1,769 of 1,870	DNV	A
2019	not published	35.4	8.83	+301%	1,815 of 1,919	DNV	A
2018	not published	28.2	8.86	+219%	1,653 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.