Navalyze

Navalyze · Chemical tanker · Ship

STEN SKAGEN

IMO
9460239
Type
Chemical tanker
Average cargo carried
8,249 t
Flag (estimated)
Portugal
Port of registry
Madeira
Technical efficiency
EEXI 7.48 g CO₂/t·nm
Ice class
IA

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

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2021 at a glance

From the 2021 THETIS-MRV report. Carries about 8,420 t of cargo on average.

Fuel kg/nm
77.8
Oil tanker median 129 kg/nm (−40%)
CO₂ per transport work (cargo)
29.6
g CO₂/t·nm · Oil tanker median 8.86 (+234%)
Average speed
10.6 kn
Oil tanker median 10.7 kn (−1%)
Fuel per day at sea
19.7 t/day
Fuel consumed
3,170 t
CO₂ emitted
10,163 t
Distance sailed
40,750 nm
CO₂ ÷ CO₂ per mile
Time at sea
3,861 h
161 days, 44% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical 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 75.8 kg/nm · median 79.7 (−5%)
52.8Ranks 623 of 1,460, lowest first111
Average speedThis ship 9.8 kn · median 11.1 (−12%)
8.8Faster than 21% of chemical tanker ships12.4
CO₂ per transport work (cargo)This ship 29.5 g CO₂/t·nm · median 15.0 (+96%)
7.93Ranks 1,168 of 1,460, lowest first40.2
Middle 80% of shipsMiddle 50%Chemical 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 ports25%
  • From the EU34%
  • Into the EU28%
  • At berth in the EU13%
Fuel burned laden
–
Not reported
CO₂ at berth
1,358 t
13.4% 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 Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

  • STEN SKAGEN
  • Chemical tanker median

Average speed, kn

  • STEN SKAGEN
  • Chemical tanker median

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

  • STEN SKAGEN
  • Chemical tanker median

Year on year

YearAverage speedFuel kg/nmFuel per day at seaDistanceCO₂ per transport workReading
2024→2025−0.6 kn−6%−11%+15%−5%0.6 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024+0.3 kn+3%+6%−28%+8%0.3 kn faster, fuel per mile up 3%; in line with the speed change.
2022→2023+0.4 kn−3%+1%−8%−11%0.4 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2021→2022−0.9 kn+3%−6%−7%+10%0.9 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021+0.0 kn−11%−11%−2%−6%Same speed, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2019→2020+4.8 kn−4%+75%+38%−11%4.8 kn faster, fuel per mile down 4%; 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

YearISM companyFuel tCO₂ tDistance nmHours at seahAverage speedknots at seaFuel kg/nmthis shipCO₂ per transport work (cargo)g/t·nm, this shipLaden fuel
2025Rederiet Stenersen AS2,1796,98728,7312,9259.875.829.5–
2024part-yearRederiet Stenersen AS1,8976,08223,3802,25910.381.131.1–
2024Rederiet Stenersen AS2,0006,41324,8912,40510.480.431.2–
2023not published2,7008,65734,7453,43910.177.728.8–
2022not published3,0209,68337,7443,9079.780.032.5–
2021not published3,17010,16340,7503,86110.677.829.6–
2020not published3,63711,66141,5443,93710.687.531.6–
2019not published2,7318,75530,0745,1475.890.835.3–

Benchmark and verification

YearISM companyCO₂ per TW, g CO₂/t·nmChemical tanker medianvs Chemical tankerRankVerifierMethods
2025Rederiet Stenersen AS29.515.0+96%1,168 of 1,460DNVB+C
2024part-yearRederiet Stenersen AS––––DNVB+C
2024Rederiet Stenersen AS31.216.7+86%1,009 of 1,274DNV–
2023not published28.816.2+78%1,008 of 1,314DNVB+C
2022not published32.516.1+103%1,167 of 1,409DNVA
2021not published29.68.86+234%1,653 of 1,789DNVA
2020not published31.69.03+249%1,745 of 1,870DNVA
2019not published35.38.83+300%1,815 of 1,919DNVA

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical 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 chemical 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.