Oil tanker · Singapore flag · built 2011
MAERSK KIERA: CO₂ emissions 2018–2023
IMO 9431305 4 reporting years
- CO₂ reported 2023
- 5,735 t
- Fuel burned
- 1,810 t
- Distance
- 17,838 nm
- Time at sea
- 1,665 h
- Emitted at berth
- 11% of total
- Share of year under way
- 19%
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MAERSK KIERA 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). 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 2018–2023 all give Singapore as port of registry.
Its 5,735 t of CO₂ for 2023 is 23% below the median of 7,491 t among the 1,850 oil tankers on this register that reported for 2023. Per nautical mile it emitted 321.5 kg CO₂, 21% below the type median of 408.5 kg. It logged 1,665 hours at sea against a median of 1,807 hours for its type that year. 10.6% of its 2023 emissions were at berth; the median for oil tankers was 8.4%. Across 4 years with reported emissions, the highest was 2023 (5,735 t) and the lowest 2018 (779 t). Its efficiency percentile within the type was 92 in both 2022 and 2023. The one sister ship listed below with a 2023 return reported a lower CO₂ per nautical mile.
Emissions by year2018–2023
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2023 | 5,735 | 1,810 | 17,838 | 1,665 | 606 | 321.5 | 21.0 | 92 |
| 2022 | 5,194 | 1,656 | 17,901 | 2,439 | 801 | 290.1 | 20.1 | 92 |
| 2019 | 2,613 | 831 | — | 722 | 73 | 313.7 | 22.3 | not ranked |
| 2018 | 779 | 250 | — | 262 | 32 | 250.8 | 414.4 | not ranked |
Vessel particulars
- IMO number
- 9431305
- Ship type
- Oil tanker
- Length overall
- 183.2 m
- Year built
- 2011
- Flag state
- Singapore Wikidata/AIS, undated
- Port of registry
- Singapore MRV 2023
- 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
- 2024-06-21
- Compliance document expires
- 2025-06-30
Efficiency against its own type2023
Position 1,487 of 1,615 qualifying oil tankers by EEOI, at the 92nd percentile. The dashed line is the type median, 8.0; this vessel reported 21.0.
EEOI divides emissions by transport work, which for this vessel and year was 273,095,714 tonne-miles over 17,838 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2023 was 636.2% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, so the series has gaps.
From 2022 to 2023, emissions rose 10.4% while distance sailed fell 0.4%and CO₂ per nautical mile rose 10.8%.That points mainly to how efficiently it sailed, rather than the other.
Where the 2023 emissions occurred
Laden voyages2023
- CO₂ on laden voyages
- 2,763 t, 48% of total
- Fuel, laden
- 874 t
- CO₂ per nm, laden
- 335.2 kg
The rest of the 2023 total was emitted on ballast legs or at berth.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2023, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 4 MRV reporting years, an efficiency ranking, 4 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.