Oil tanker · Liberia flag
HANOVER SQUARE: CO₂ emissions 2019–2025
IMO 9783992 EU ETS7 reporting years
- CO₂ reported 2025
- 9,581 t
- Fuel burned
- 3,048 t
- Distance
- 25,318 nm
- Time at sea
- 2,655 h
- Emitted at berth
- 8% of total
- Share of year under way
- 30%
HANOVER SQUARE against its type
It is one of 718 oil tankers here under the Liberia flag, 20.2% of the 3,548 on the register. The returns for 2019–2025 all give Monrovia as port of registry.
Its 9,581 t of CO₂ for 2025 is 21% above the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 378.4 kg CO₂, close to the type median of 403.2 kg. It logged 2,655 hours at sea against a median of 2,030 hours for its type that year. 8.3% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2024 (14,727 t) and the lowest 2021 (6,383 t). Its efficiency percentile within the type went from 0 in 2019 to 23 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 1 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 9,581 | 3,048 | 25,318 | 2,655 | 799 | 378.4 | 5.5 | 23 |
| 2024 | 14,727 | 4,700 | 34,164 | 3,133 | 1,088 | 431.1 | 7.1 | 43 |
| 2023 | 12,365 | 3,952 | — | 3,619 | 1,652 | 345.7 | — | — |
| 2022 | 11,605 | 3,705 | 30,668 | 2,572 | 2,022 | 378.4 | 10.4 | 69 |
| 2021 | 6,383 | 2,046 | 14,754 | 1,268 | 686 | 432.6 | 5.7 | 21 |
| 2020 | 10,422 | 3,304 | 26,547 | 2,295 | 1,697 | 392.6 | 1.7 | 0 |
| 2019 | 8,501 | 2,706 | 19,740 | 2,399 | 2,262 | 430.6 | 1.4 | 0 |
Vessel particulars
- IMO number
- 9783992
- Ship type
- Oil tanker
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEDI (2.94 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
- 2026-03-20
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 339 of 1,448 qualifying oil tankers by EEOI, at the 23rd percentile. The dashed line is the type median, 7.5; this vessel reported 5.5.
EEOI divides emissions by transport work, which for this vessel and year was 1,745,120,219 tonne-miles over 25,318 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 12.7% higher than in 2019, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 34.9% while distance sailed fell 25.9%and CO₂ per nautical mile fell 12.2%.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
- 9,730 t
- Methane (CH₄)
- 0.15 t
- Nitrous oxide (N₂O)
- 0.55 t
- Under EU ETS
- 5,229 t, 55% of total
Laden voyages2025
- CO₂ on laden voyages
- 6,507 t, 68% of total
- Fuel, laden
- 2,076 t
- CO₂ per nm, laden
- 306.4 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
| 2021 | DNV | Germany |
| 2023 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | 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 2019–2025, published by the European Commission.
This page draws on 7 MRV reporting years, an efficiency ranking and 1 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.