Oil tanker · Marshall Islands flag · built 2014
SEAWAYS SHENANDOAH: CO₂ emissions 2018–2025
IMO 9607966 MMSI 538005473EU ETS8 reporting years
- CO₂ reported 2025
- 8,505 t
- Fuel burned
- 2,718 t
- Distance
- 20,591 nm
- Time at sea
- 1,678 h
- Emitted at berth
- 4% of total
- Share of year under way
- 19%
- Gross tonnage
- 62,715
SEAWAYS SHENANDOAH against its type
Built in 2014, it is 4 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 62,715 gross tonnage it is larger than 60% 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 returns for 2018–2025 all give Majuro as port of registry.
Its 8,505 t of CO₂ for 2025 is close to the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 413.0 kg CO₂, close to the type median of 403.2 kg. It logged 1,678 hours at sea against a median of 2,030 hours for its type that year. 4.1% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2022 (11,260 t) and the lowest 2021 (2,132 t). Its efficiency percentile within the type went from 9 in 2018 to 19 in 2025 (lower is more efficient). Of the 3 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 | 8,505 | 2,718 | 20,591 | 1,678 | 345 | 413.0 | 5.1 | 19 |
| 2024 | 7,305 | 2,336 | 18,842 | 1,449 | 196 | 387.7 | 5.7 | 26 |
| 2023 | 2,670 | 856 | — | 194 | 1,820 | 1,113.0 | 32.8 | not ranked |
| 2022 | 11,260 | 3,599 | 28,024 | 2,252 | 1,266 | 401.8 | 5.4 | 18 |
| 2021 | 2,132 | 680 | 4,779 | 371 | 222 | 446.2 | 5.2 | 15 |
| 2020 | 6,673 | 2,136 | 17,778 | 1,469 | 491 | 375.3 | 5.0 | 12 |
| 2019 | 8,817 | 2,818 | 20,205 | 1,799 | 870 | 436.4 | 6.2 | 25 |
| 2018 | 6,587 | 2,108 | 17,564 | 1,562 | 421 | 375.0 | 4.2 | 9 |
Vessel particulars
- IMO number
- 9607966
- MMSI
- 538005473
- Ship type
- Oil tanker
- Gross tonnage
- 62,715
- Length overall
- 250.0 m
- Beam
- 44.0 m
- Year built
- 2014
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (3.31 gCO₂/t·nm)
- Verifier
- HELLENIC LLOYD'S S.A., Greece
- Accreditation
- 1190
- Compliance document issued
- 2026-03-11
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 276 of 1,448 qualifying oil tankers by EEOI, at the 19th percentile. The dashed line is the type median, 7.5; this vessel reported 5.1.
EEOI divides emissions by transport work, which for this vessel and year was 1,667,647,059 tonne-miles over 20,591 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 29.1% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 16.4% while distance sailed rose 9.3%and CO₂ per nautical mile rose 6.5%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 8,638 t
- Methane (CH₄)
- 0.14 t
- Nitrous oxide (N₂O)
- 0.49 t
- Under EU ETS
- 4,425 t, 52% of total
Observed movementsAIS · Norwegian waters
- First seen
- 08 Jun 2026
- Last seen
- 09 Jun 2026
- Days observed
- 2
- Positions
- 32
- Median speed
- 13.5 kn
Its recorded positions span 58.0°N to 58.3°N and 4.5°E to 5.4°E.
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 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
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).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: a name history, 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.