Oil tanker · Hong Kong flag · built 2005
MAERSK BRISTOL: CO₂ emissions 2018–2025
IMO 9299434 EU ETS8 reporting years
- CO₂ reported 2025
- 4,826 t
- Fuel burned
- 1,536 t
- Distance
- 18,123 nm
- Time at sea
- 1,606 h
- Emitted at berth
- 5% of total
- Share of year under way
- 18%
- Gross tonnage
- 19,758
MAERSK BRISTOL against its type
Built in 2005, it is 5 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 19,758 gross tonnage it is smaller than 92% of the other 2,841 oil tankers with a recorded tonnage. It is one of 139 oil tankers here under the Hong Kong flag, 3.9% of the 3,548 on the register. The same builder is recorded for 192 other vessels here, 71 of them oil tankers. Its MRV returns name it MAERSK BRISTOL for 2018–2023 and M BRISTOL for 2024–2025. The reported port of registry changed: Copenhagen (2018–2023), then HONG KONG China (2024–2025).
Its 4,826 t of CO₂ for 2025 is 39% 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 266.3 kg CO₂, 34% below the type median of 403.2 kg. It logged 1,606 hours at sea against a median of 2,030 hours for its type that year. 5.1% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2019 (10,404 t) and the lowest 2024 (4,796 t). Its efficiency percentile within the type went from 77 in 2018 to 91 in 2025 (lower is more efficient). Of the 2 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 | 4,826 | 1,536 | 18,123 | 1,606 | 246 | 266.3 | 19.2 | 91 |
| 2024 | 4,796 | 1,530 | 19,245 | 1,736 | 483 | 249.2 | 19.8 | 92 |
| 2023 | 6,250 | 1,988 | — | 2,200 | 482 | 242.5 | — | — |
| 2022 | 5,477 | 1,737 | 20,632 | 1,827 | 698 | 265.5 | 14.2 | 83 |
| 2021 | 6,932 | 2,212 | 29,573 | 2,549 | 432 | 234.4 | 21.8 | 92 |
| 2020 | 8,635 | 2,758 | 31,652 | 2,683 | 491 | 272.8 | 8.6 | 49 |
| 2019 | 10,404 | 3,322 | 39,379 | 3,109 | 745 | 264.2 | 19.1 | 89 |
| 2018 | 5,097 | 1,634 | 20,068 | 1,740 | 166 | 254.0 | 13.2 | 77 |
Vessel particulars
- IMO number
- 9299434
- Previously reported as
- M BRISTOL
- Ship type
- Oil tanker
- Gross tonnage
- 19,758
- Length overall
- 175.2 m
- Year built
- 2005
- Flag state
- Hong Kong per EU MRV 2025
- Port of registry
- HONG KONG China MRV 2025
- Ice class
- IC
- Technical efficiency (design)
- EEXI (6.46 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-03-25
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,318 of 1,448 qualifying oil tankers by EEOI, at the 91st percentile. The dashed line is the type median, 7.5; this vessel reported 19.2.
EEOI divides emissions by transport work, which for this vessel and year was 250,967,759 tonne-miles over 18,123 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 5.3% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 0.6% while distance sailed fell 5.8%and CO₂ per nautical mile rose 6.9%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 4,902 t
- Methane (CH₄)
- 0.08 t
- Nitrous oxide (N₂O)
- 0.28 t
- Under EU ETS
- 2,849 t, 59% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2024 | NORMEC VERIFAVIA SAS | France |
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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 8 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.