Oil tanker · Marshall Islands flag · built 2011
FLAGSHIP WILLOW: CO₂ emissions 2018–2025
IMO 9512484 7 reporting years
- CO₂ reported 2023
- 5,151 t
- Fuel burned
- 1,648 t
- Distance
- 12,881 nm
- Time at sea
- 1,032 h
- Emitted at berth
- 3% of total
- Share of year under way
- 12%
- Gross tonnage
- 42,341
FLAGSHIP WILLOW against its type
Built in 2011, it is 1 year newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 42,341 gross tonnage it is smaller than 62% 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. Its MRV returns name it FLAGSHIP WILLOW for 2018–2023 and LOULOULIGHT II for 2025. The reported port of registry changed: Majuro (2019), then Majuro, Marshall Islands (2020–2025).
Its 5,151 t of CO₂ for 2023 is 31% below the median of 7,491 t among the 1,850 oil tankers on this register that reported for 2023. Per nautical mile it emitted 399.9 kg CO₂, close to the type median of 408.5 kg. It logged 1,032 hours at sea against a median of 1,807 hours for its type that year. 3.3% of its 2023 emissions were at berth; the median for oil tankers was 8.4%. Across 6 years with reported emissions, the highest was 2020 (13,996 t) and the lowest 2022 (3,225 t). Its efficiency percentile within the type went from 35 in 2018 to 67 in 2023 (lower is more efficient). Of the 2 comparable vessels listed below with a 2023 return, 2 reported a lower CO₂ per nautical mile than this vessel.
No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2023 | 5,151 | 1,648 | 12,881 | 1,032 | 169 | 399.9 | 10.0 | 67 |
| 2022 | 3,225 | 1,031 | 8,416 | 690 | 71 | 383.2 | 6.8 | 36 |
| 2021 | 6,073 | 1,936 | 14,443 | 1,220 | 109 | 420.5 | 9.7 | 61 |
| 2020 | 13,996 | 4,478 | 36,729 | 3,077 | 572 | 381.1 | 7.3 | 36 |
| 2019 | 4,014 | 1,284 | 10,159 | 1,162 | 101 | 395.1 | 13.6 | 80 |
| 2018 | 6,735 | 2,144 | 16,714 | 1,659 | 217 | 403.0 | 7.1 | 35 |
Vessel particulars
- IMO number
- 9512484
- Previously reported as
- LOULOULIGHT II
- Ship type
- Oil tanker
- Gross tonnage
- 42,341
- Length overall
- 229.0 m
- Beam
- 32.0 m
- Year built
- 2011
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro, Marshall Islands MRV 2023
- Home port
- Majuro, Marshall Islands
- Technical efficiency (design)
- EEXI (4.09 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2024-06-26
- Compliance document expires
- 2025-06-30
Efficiency against its own type2023
Position 1,089 of 1,615 qualifying oil tankers by EEOI, at the 67th percentile. The dashed line is the type median, 8.0; this vessel reported 10.0.
EEOI divides emissions by transport work, which for this vessel and year was 515,128,000 tonne-miles over 12,881 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2023 was 23.5% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2024, so the series has gaps.
From 2022 to 2023, emissions rose 59.7% while distance sailed rose 53.1%and CO₂ per nautical mile rose 4.4%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2023 emissions occurred
Laden voyages2023
- CO₂ on laden voyages
- 3,598 t, 70% of total
- Fuel, laden
- 1,152 t
- CO₂ per nm, laden
- 421.5 kg
The rest of the 2023 total was emitted on ballast legs or at berth.
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 |
| 2025 | Bureau Veritas Certification France | 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 7 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.