Gas carrier · Bahamas flag
CHEYENNE: CO₂ emissions 2018–2025
IMO 9706504 EU ETS8 reporting years
- CO₂ reported 2025
- 4,886 t
- Fuel burned
- 1,569 t
- Distance
- 11,502 nm
- Time at sea
- 808 h
- Emitted at berth
- 3% of total
- Share of year under way
- 9%
CHEYENNE against its type
It is one of 29 gas carriers here under the Bahamas flag, 4.2% of the 688 on the register. The returns for 2018–2025 all give NASSAU as port of registry.
Its 4,886 t of CO₂ for 2025 is 18% below the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 424.8 kg CO₂, 1.7 times the type median of 256.2 kg. It logged 808 hours at sea against a median of 1,943 hours for its type that year. 2.9% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 8 years with reported emissions, the highest was 2023 (26,665 t) and the lowest 2024 (2,049 t). Its efficiency percentile within the type went from 4 in 2018 to 31 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 year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 4,886 | 1,569 | 11,502 | 808 | 142 | 424.8 | 18.6 | 31 |
| 2024 | 2,049 | 658 | — | 504 | 101 | 337.3 | — | — |
| 2023 | 26,665 | 8,560 | 64,580 | 4,540 | 876 | 412.9 | 15.9 | 14 |
| 2022 | 13,980 | 4,489 | 37,201 | 2,601 | 362 | 375.8 | 13.4 | 5 |
| 2021 | 6,802 | 2,184 | 18,385 | 1,405 | 338 | 370.0 | 15.8 | 7 |
| 2020 | 5,749 | 1,846 | 15,038 | 1,017 | 398 | 382.3 | 30.0 | 38 |
| 2019 | 10,465 | 3,326 | 27,877 | 2,158 | 1,060 | 375.4 | 14.6 | 10 |
| 2018 | 7,224 | 2,310 | 18,400 | 1,630 | 338 | 392.6 | 12.5 | 4 |
Vessel particulars
- IMO number
- 9706504
- Ship type
- Gas carrier
- Flag state
- Bahamas per EU MRV 2025
- Port of registry
- Nassau MRV 2025
- Technical efficiency (design)
- EEXI (5.42 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-23
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 92 of 292 qualifying gas carriers by EEOI, at the 31st percentile. The dashed line is the type median, 27.9; this vessel reported 18.6.
EEOI divides emissions by transport work, which for this vessel and year was 262,686,559 tonne-miles over 11,502 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 32.4% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 138.5% and CO₂ per nautical mile rose 25.9%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 4,963 t
- Methane (CH₄)
- 0.08 t
- Nitrous oxide (N₂O)
- 0.28 t
- Under EU ETS
- 2,676 t, 55% of total
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 |
| 2023 | DNV | Germany |
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.
This page draws on 8 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.