Oil tanker · Portugal flag · built 2007
BRO NAKSKOV: CO₂ emissions 2018–2025
IMO 9323584 MMSI 255951000EU ETS8 reporting years
- CO₂ reported 2025
- 6,218 t
- Fuel burned
- 1,941 t
- Distance
- 24,180 nm
- Time at sea
- 2,412 h
- Emitted at berth
- 13% of total
- Share of year under way
- 28%
- Gross tonnage
- 12,105
BRO NAKSKOV against its type
Built in 2007, it is 3 years older than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 12,105 gross tonnage it is smaller than 94% of the other 2,841 oil tankers with a recorded tonnage. It is one of 56 oil tankers here under the Portugal flag, 1.6% of the 3,548 on the register. The same builder is recorded for 98 other vessels here, 19 of them oil tankers. Its MRV returns name it BRO NAKSKOV for 2018–2021 and STEN PONTOS for 2022–2025. The reported port of registry changed: Nakskov (2018–2022), then Madeira (2023–2025).
Its 6,218 t of CO₂ for 2025 is 22% 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 257.2 kg CO₂, 36% below the type median of 403.2 kg. It logged 2,412 hours at sea against a median of 2,030 hours for its type that year. 12.7% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2021 (10,612 t) and the lowest 2025 (6,218 t). Its efficiency percentile within the type went from 96 in 2018 to 98 in 2025 (lower is more efficient). Of the 8 sister ships listed below with a 2025 return, 5 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 | 6,218 | 1,941 | 24,180 | 2,412 | 790 | 257.2 | 32.3 | 98 |
| 2024 | 8,059 | 2,514 | 35,002 | 3,551 | 1,525 | 230.2 | 26.6 | 96 |
| 2023 | 7,705 | 2,407 | 35,150 | 3,414 | 1,515 | 219.2 | 27.6 | 96 |
| 2022 | 6,536 | 2,066 | — | 2,788 | 1,053 | 231.9 | 42.5 | not ranked |
| 2021 | 10,612 | 3,363 | 49,727 | 4,457 | 989 | 213.4 | 21.5 | 92 |
| 2020 | 9,066 | 2,838 | 41,844 | 3,683 | 1,318 | 216.7 | 29.9 | 96 |
| 2019 | 7,692 | 2,440 | 34,493 | 2,888 | 1,326 | 223.0 | 26.3 | 95 |
| 2018 | 6,623 | 2,124 | 29,692 | 2,756 | 1,386 | 223.1 | 27.9 | 96 |
Vessel particulars
- IMO number
- 9323584
- Previously reported as
- STEN PONTOS
- MMSI
- 255951000
- Call sign
- CQXX
- Ship type
- Oil tanker
- Gross tonnage
- 12,105
- Length overall
- 144.0 m
- Beam
- 23.0 m
- Year built
- 2007
- Flag state
- Portugal per EU MRV 2025
- Builder
- Jiangnan Shipyard
- Port of registry
- Madeira MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (8.44 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-21
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,422 of 1,448 qualifying oil tankers by EEOI, at the 98th percentile. The dashed line is the type median, 7.5; this vessel reported 32.3.
EEOI divides emissions by transport work, which for this vessel and year was 192,700,651 tonne-miles over 24,180 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 6.1% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 22.8% while distance sailed fell 30.9%and CO₂ per nautical mile rose 11.7%.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
- 6,314 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.35 t
- Under EU ETS
- 5,009 t, 81% of total
Observed movementsAIS · Norwegian waters
- First seen
- 08 May 2026
- Last seen
- 14 Jul 2026
- Days observed
- 18
- Positions
- 850
- Median speed
- 10.6 kn
Its recorded positions span 58.0°N to 62.5°N and 4.4°E to 6.3°E.
283 hourly points from 850 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
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 |
| 2023 | 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, AIS movements in Norwegian waters, a name history and a licensed photograph. Not found in the sources for this vessel: 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.