Oil tanker · Liberia flag
BOURDA: CO₂ emissions 2019–2025
IMO 9312846 EU ETS4 reporting years
- CO₂ reported 2025
- 6,145 t
- Fuel burned
- 1,940 t
- Distance
- 11,853 nm
- Time at sea
- 1,309 h
- Emitted at berth
- 12% of total
- Share of year under way
- 15%
BOURDA against its type
It is one of 718 oil tankers here under the Liberia flag, 20.2% of the 3,548 on the register. Its MRV returns name it DONEGAL SPIRIT for 2019–2024 and BOURDA for 2025. The reported port of registry changed: Nassau (2019–2024), then MONROVIA (2025).
Its 6,145 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 518.4 kg CO₂, 29% above the type median of 403.2 kg. It logged 1,309 hours at sea against a median of 2,030 hours for its type that year. 12.5% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 4 years with reported emissions, the highest was 2024 (9,366 t) and the lowest 2020 (4,421 t). Its efficiency percentile within the type went from 37 in 2019 to 51 in 2025 (lower is more efficient). Of the 4 comparable vessels listed below with a 2025 return, 4 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 | 6,145 | 1,940 | 11,853 | 1,309 | 767 | 518.4 | 7.5 | 51 |
| 2024 | 9,366 | 2,993 | 21,495 | 2,375 | 1,169 | 435.8 | 6.5 | 36 |
| 2020 | 4,421 | 1,414 | 11,524 | 1,023 | 338 | 383.6 | 8.7 | 50 |
| 2019 | 5,511 | 1,748 | 10,404 | 1,128 | 974 | 529.7 | 7.2 | 37 |
Vessel particulars
- IMO number
- 9312846
- Previously reported as
- DONEGAL SPIRIT
- Ship type
- Oil tanker
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- MONROVIA MRV 2025
- Technical efficiency (design)
- EEXI (3.45 gCO₂/t·nm)
- Verifier
- Bureau Veritas Certification France, France
- Accreditation
- 3-2047 rev. 4
- Compliance document issued
- 2026-03-23
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 738 of 1,448 qualifying oil tankers by EEOI, at the 51st percentile. The dashed line is the type median, 7.5; this vessel reported 7.5.
EEOI divides emissions by transport work, which for this vessel and year was 813,921,854 tonne-miles over 11,853 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 11.5% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2021, 2022, 2023, so the series has gaps.
From 2024 to 2025, emissions fell 34.4% while distance sailed fell 44.9%and CO₂ per nautical mile rose 19.0%.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
- 6,240 t
- Methane (CH₄)
- 0.10 t
- Nitrous oxide (N₂O)
- 0.35 t
- Under EU ETS
- 1,669 t, 27% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | DNV | Germany |
| 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 2019–2025, published by the European Commission.
This page draws on 4 MRV reporting years, an efficiency ranking, 1 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.