Chemical tanker · Liberia flag · built 2010
BW STREAM: CO₂ emissions 2018–2025
IMO 9479979 EU ETS8 reporting years
- CO₂ reported 2025
- 6,182 t
- Fuel burned
- 1,961 t
- Distance
- 31,420 nm
- Time at sea
- 2,789 h
- Emitted at berth
- 5% of total
- Share of year under way
- 32%
- Gross tonnage
- 11,757
BW STREAM against its type
Built in 2010, it is the same age as the median chemical tanker on this register (build year 2010, 1,951 vessels with a known build year). At 11,757 gross tonnage it is smaller than 73% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 402 chemical tankers here under the Liberia flag, 17.2% of the 2,344 on the register. Its MRV returns name it BW STREAM for 2018 and CHEM STREAM for 2019–2025. The returns for 2019–2025 all give Monrovia as port of registry.
Its 6,182 t of CO₂ for 2025 is 12% above the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 196.7 kg CO₂, 21% below the type median of 250.2 kg. It logged 2,789 hours at sea against a median of 2,106 hours for its type that year. 5.2% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2022 (9,911 t) and the lowest 2018 (1,454 t). Its efficiency percentile within the type went from 28 in 2018 to 60 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 3 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 | 6,182 | 1,961 | 31,420 | 2,789 | 324 | 196.7 | 17.2 | 60 |
| 2024 | 8,620 | 2,734 | 37,571 | 3,831 | < 1 | 229.4 | 15.7 | 49 |
| 2023 | 9,014 | 2,871 | 39,569 | 3,840 | 350 | 227.8 | 14.9 | 47 |
| 2022 | 9,911 | 3,155 | 40,935 | 3,705 | 687 | 242.1 | 16.6 | 55 |
| 2021 | 8,377 | 2,644 | 38,259 | 3,574 | 403 | 218.9 | 18.3 | 61 |
| 2020 | 5,996 | 1,892 | 28,014 | 2,508 | 365 | 214.0 | 14.5 | 43 |
| 2019 | 8,011 | 2,544 | 36,781 | 3,207 | 532 | 217.8 | 15.4 | 44 |
| 2018 | 1,454 | 466 | 7,548 | 676 | 0 | 192.6 | 12.0 | 28 |
Vessel particulars
- IMO number
- 9479979
- Previously reported as
- CHEM STREAM
- Ship type
- Chemical tanker
- Gross tonnage
- 11,757
- Length overall
- 144.0 m
- Beam
- 24.2 m
- Year built
- 2010
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Technical efficiency (design)
- EIV (10.12 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-03-18
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 814 of 1,348 qualifying chemical tankers by EEOI, at the 60th percentile. The dashed line is the type median, 14.4; this vessel reported 17.2.
EEOI divides emissions by transport work, which for this vessel and year was 358,350,145 tonne-miles over 31,420 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 325.3% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 28.3% while distance sailed fell 16.4%and CO₂ per nautical mile fell 14.2%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 6,278 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.35 t
- Under EU ETS
- 4,073 t, 66% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2019 | VERIFAVIA (UK) LTD | United Kingdom |
| 2020 | 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, 4 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.