Oil tanker · Marshall Islands flag
STI WINNIE: CO₂ emissions 2018–2025
IMO 9696709 EU ETS8 reporting years
- CO₂ reported 2025
- 19,317 t
- Fuel burned
- 6,187 t
- Distance
- 49,308 nm
- Time at sea
- 3,958 h
- Emitted at berth
- 5% of total
- Share of year under way
- 45%
STI WINNIE against its type
It is one of 793 oil tankers here under the Marshall Islands flag, 22.4% of the 3,548 on the register. The returns for 2018–2025 all give Majuro as port of registry.
Its 19,317 t of CO₂ for 2025 is 2.4 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 391.8 kg CO₂, close to the type median of 403.2 kg. It logged 3,958 hours at sea against a median of 2,030 hours for its type that year. 4.8% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2024 (24,112 t) and the lowest 2020 (1,012 t). Its efficiency percentile within the type went from 20 in 2018 to 8 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 4 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 | 19,317 | 6,187 | 49,308 | 3,958 | 921 | 391.8 | 4.2 | 8 |
| 2024 | 24,112 | 7,716 | 54,147 | 5,151 | 1,229 | 445.3 | 5.6 | 25 |
| 2023 | 4,616 | 1,475 | 10,372 | 1,194 | 245 | 445.0 | 6.2 | 29 |
| 2022 | 4,709 | 1,503 | 11,735 | 1,032 | 609 | 401.3 | 5.4 | 18 |
| 2021 | 4,391 | 1,405 | 11,448 | 1,102 | 203 | 383.6 | 5.0 | 14 |
| 2020 | 1,012 | 325 | 3,138 | 293 | 0 | 322.5 | 3.4 | 4 |
| 2019 | 5,959 | 1,895 | 14,150 | 1,317 | 729 | 421.2 | 6.8 | 32 |
| 2018 | 7,634 | 2,435 | 21,082 | 2,203 | 924 | 362.1 | 5.5 | 20 |
Vessel particulars
- IMO number
- 9696709
- Ship type
- Oil tanker
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (2.81 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-02
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 115 of 1,448 qualifying oil tankers by EEOI, at the 8th percentile. The dashed line is the type median, 7.5; this vessel reported 4.2.
EEOI divides emissions by transport work, which for this vessel and year was 4,577,573,460 tonne-miles over 49,308 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 153.0% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 19.9% while distance sailed fell 8.9%and CO₂ per nautical mile fell 12.0%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 19,621 t
- Methane (CH₄)
- 0.31 t
- Nitrous oxide (N₂O)
- 1.11 t
- Under EU ETS
- 10,547 t, 55% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
This page draws on 8 MRV reporting years, an efficiency ranking and 1 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, 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.