Oil tanker · Singapore flag · built 2011
MAERSK KAYA: CO₂ emissions 2018–2025
IMO 9431288 EU ETS7 reporting years
- CO₂ reported 2025
- 10,568 t
- Fuel burned
- 3,322 t
- Distance
- 32,734 nm
- Time at sea
- 2,984 h
- Emitted at berth
- 16% of total
- Share of year under way
- 34%
- Gross tonnage
- 24,463
MAERSK KAYA against its type
Built in 2011, it is 1 year newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 24,463 gross tonnage it is smaller than 88% of the other 2,841 oil tankers with a recorded tonnage. It is one of 237 oil tankers here under the Singapore flag, 6.7% of the 3,548 on the register. The same builder is recorded for 192 other vessels here, 71 of them oil tankers. The returns for 2018–2025 all give Singapore as port of registry.
Its 10,568 t of CO₂ for 2025 is 33% above the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 322.8 kg CO₂, 20% below the type median of 403.2 kg. It logged 2,984 hours at sea against a median of 2,030 hours for its type that year. 15.7% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2024 (15,111 t) and the lowest 2020 (786 t). Its efficiency percentile within the type went from 64 in 2021 to 93 in 2025 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 2 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 | 10,568 | 3,322 | 32,734 | 2,984 | 1,663 | 322.8 | 20.7 | 93 |
| 2024 | 15,111 | 4,802 | 44,443 | 3,836 | 1,699 | 340.0 | 20.7 | 93 |
| 2023 | 11,029 | 3,483 | 35,350 | 3,108 | 1,599 | 312.0 | 18.2 | 89 |
| 2022 | 9,316 | 2,970 | 29,729 | 2,563 | 1,433 | 313.4 | 15.1 | 86 |
| 2021 | 8,353 | 2,658 | 30,675 | 2,545 | 1,150 | 272.3 | 10.1 | 64 |
| 2020 | 786 | 249 | — | 364 | 0 | 213.5 | — | — |
| 2018 | 2,324 | 725 | — | 58 | 2,126 | 2,758.0 | 295.0 | not ranked |
Vessel particulars
- IMO number
- 9431288
- Ship type
- Oil tanker
- Gross tonnage
- 24,463
- Length overall
- 183.0 m
- Year built
- 2011
- Flag state
- Singapore per EU MRV 2025
- Port of registry
- Singapore MRV 2025
- Technical efficiency (design)
- EEXI (5.55 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-19
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,343 of 1,448 qualifying oil tankers by EEOI, at the 93rd percentile. The dashed line is the type median, 7.5; this vessel reported 20.7.
EEOI divides emissions by transport work, which for this vessel and year was 509,788,712 tonne-miles over 32,734 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 354.7% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2019, so the series has gaps.
From 2024 to 2025, emissions fell 30.1% while distance sailed fell 26.3%and CO₂ per nautical mile fell 5.0%.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
- 10,731 t
- Methane (CH₄)
- 0.17 t
- Nitrous oxide (N₂O)
- 0.60 t
- Under EU ETS
- 9,297 t, 88% of total
Laden voyages2025
- CO₂ on laden voyages
- 5,154 t, 49% of total
- Fuel, laden
- 1,627 t
- CO₂ per nm, laden
- 274.1 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
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).
This page draws on 7 MRV reporting years, an efficiency ranking and 5 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.