Oil tanker · Marshall Islands flag · built 2008
ARDMORE SEALANCER: CO₂ emissions 2020–2025
IMO 9367695 EU ETS4 reporting years
- CO₂ reported 2025
- 6,581 t
- Fuel burned
- 2,084 t
- Distance
- 24,236 nm
- Time at sea
- 2,215 h
- Emitted at berth
- 11% of total
- Share of year under way
- 25%
- Gross tonnage
- 26,897
ARDMORE SEALANCER against its type
Built in 2008, it is 2 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 26,897 gross tonnage it is smaller than 86% of the other 2,841 oil tankers with a recorded tonnage. It is one of 793 oil tankers here under the Marshall Islands flag, 22.4% of the 3,548 on the register. The same builder is recorded for 103 other vessels here, 61 of them oil tankers. Its MRV returns name it ARDMORE SEALANCER for 2020–2021 and HANSA SEALANCER for 2024–2025. The returns for 2020–2025 all give Majuro as port of registry.
Its 6,581 t of CO₂ for 2025 is 17% below the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 271.6 kg CO₂, 33% below the type median of 403.2 kg. It logged 2,215 hours at sea against a median of 2,030 hours for its type that year. 10.8% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 4 years with reported emissions, the highest was 2025 (6,581 t) and the lowest 2021 (3,168 t). Its efficiency percentile within the type went from 69 in 2020 to 65 in 2025 (lower is more efficient). Of the 4 sister ships listed below with a 2025 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2020–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 6,581 | 2,084 | 24,236 | 2,215 | 714 | 271.6 | 8.9 | 65 |
| 2024 | 4,783 | 1,517 | 18,156 | 1,569 | 462 | 263.4 | 15.4 | 88 |
| 2021 | 3,168 | 1,000 | 11,971 | 1,126 | 239 | 264.7 | 11.6 | 72 |
| 2020 | 5,587 | 1,765 | 22,843 | 2,195 | 504 | 244.6 | 11.6 | 69 |
Vessel particulars
- IMO number
- 9367695
- Previously reported as
- HANSA SEALANCER
- Ship type
- Oil tanker
- Gross tonnage
- 26,897
- Length overall
- 183.0 m
- Beam
- 32.2 m
- Year built
- 2008
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- Onomichi Dockyard
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (5.09 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 943 of 1,448 qualifying oil tankers by EEOI, at the 65th percentile. The dashed line is the type median, 7.5; this vessel reported 8.9.
EEOI divides emissions by transport work, which for this vessel and year was 741,147,522 tonne-miles over 24,236 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 17.8% higher than in 2020, for EU/EEA voyages only. No return is recorded for 2022, 2023, so the series has gaps.
From 2024 to 2025, emissions rose 37.6% while distance sailed rose 33.5%and CO₂ per nautical mile rose 3.1%.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
- 6,684 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.38 t
- Under EU ETS
- 4,221 t, 64% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2020 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2024 | DNV | Germany |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2020–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.