Oil tanker · Portugal flag · built 2010

STEN FJELL: CO₂ emissions 2018–2025

IMO 9460241 EU ETS8 reporting years

CO₂ reported 2025: 12,043 t
Fuel burned: 3,756 t
Distance: 47,138 nm
Time at sea: 4,710 h
Emitted at berth: 14% of total
Share of year under way: 54%
Gross tonnage: 13,283

STEN FJELL against its type

Built in 2010, it is the same age as the median oil tanker on this register (build year 2010, 2,896 vessels with a known build year). At 13,283 gross tonnage it is smaller than 94% of the other 2,841 oil tankers with a recorded tonnage. It is one of 56 oil tankers here under the Portugal flag, 1.6% of the 3,548 on the register. The same builder is recorded for 98 other vessels here, 19 of them oil tankers. The reported port of registry changed: Gibraltar (2018–2023), then Madeira (2024–2025).

Its 12,043 t of CO₂ for 2025 is 1.5 times the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 255.5 kg CO₂, 37% below the type median of 403.2 kg. It logged 4,710 hours at sea against a median of 2,030 hours for its type that year. 13.8% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2025 (12,043 t) and the lowest 2021 (7,148 t). Its efficiency percentile within the type went from 96 in 2018 to 91 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 6 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	12,043	3,756	47,138	4,710	1,664	255.5	19.5	91
2024	9,486	2,959	36,137	3,559	1,329	262.5	24.7	95
2023	9,217	2,875	37,258	3,688	1,536	247.4	22.9	94
2022	9,342	2,914	36,050	3,628	1,324	259.1	28.6	97
2021	7,148	2,230	28,655	2,614	829	249.4	31.2	98
2020	11,222	3,500	39,033	3,542	2,096	287.5	36.0	98
2019	9,943	3,101	37,174	5,290	1,748	267.5	35.4	98
2018	7,800	2,433	30,670	6,223	1,140	254.3	28.2	96

Vessel particulars

IMO number: 9460241
Ship type: Oil tanker
Gross tonnage: 13,283
Length overall: 148.7 m
Year built: 2010
Flag state: Portugal per EU MRV 2025
Builder: Jiangnan Shipyard
Port of registry: Madeira MRV 2025
Ice class: IA
Technical efficiency (design): EEXI (7.57 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-02-16
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 1,321 of 1,448 qualifying oil tankers by EEOI, at the 91st percentile. The dashed line is the type median, 7.5; this vessel reported 19.5.

EEOI divides emissions by transport work, which for this vessel and year was 616,951,332 tonne-miles over 47,138 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 54.4% higher than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 27.0% while distance sailed rose 30.4%and CO₂ per nautical mile fell 2.7%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 12,227 t
Methane (CH₄): 0.19 t
Nitrous oxide (N₂O): 0.68 t
Under EU ETS: 11,978 t, 99% of total

Sources and how to read this

Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
Vessel particulars: Wikidata (CC0) and Wikimedia Commons.

This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.