LNG carrier · Malta flag · built 2008
BRITISH RUBY: CO₂ emissions 2018–2025
IMO 9333606 5 reporting years
- CO₂ reported 2021
- 17,127 t
- Fuel burned
- 6,212 t
- Time at sea
- 1,480 h
- Emitted at berth
- 3% of total
- Share of year under way
- 17%
- Gross tonnage
- 102,064
BRITISH RUBY against its type
Built in 2008, it is 6 years older than the median LNG carrier on this register, which was built in 2014 (396 vessels with a known build year). At 102,064 gross tonnage it is smaller than 72% of the other 377 LNG carriers with a recorded tonnage. It is one of 60 LNG carriers here under the Malta flag, 11.2% of the 538 on the register. The same builder is recorded for 761 other vessels here, 41 of them LNG carriers. Its MRV returns name it BRITISH RUBY for 2018–2019, TRISTAR RUBY for 2020–2021 and COOL RANGER for 2025. The reported port of registry changed: Douglas (2018–2019), then MONROVIA (2020–2021), then Valletta (2025).
Its 17,127 t of CO₂ for 2021 is close to the median of 16,863 t among the 299 LNG carriers on this register that reported for 2021. Per nautical mile it emitted 799.8 kg CO₂, 11% above the type median of 723.2 kg. It logged 1,480 hours at sea against a median of 1,741 hours for its type that year. 2.9% of its 2021 emissions were at berth; the median for LNG carriers was 2.0%. Across 4 years with reported emissions, the highest was 2020 (37,437 t) and the lowest 2018 (17,097 t).
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 | |||||||
| 2021 | 17,127 | 6,212 | — | 1,480 | 498 | 799.8 | — | — |
| 2020 | 37,437 | 13,574 | — | 2,512 | 532 | 1,118.9 | — | — |
| 2019 | 29,323 | 10,648 | — | 1,661 | 4,152 | 1,164.9 | — | — |
| 2018 | 17,097 | 5,980 | — | 2,036 | 549 | 877.4 | — | — |
Vessel particulars
- IMO number
- 9333606
- Previously reported as
- TRISTAR RUBY, COOL RANGER
- Ship type
- LNG carrier
- Gross tonnage
- 102,064
- Length overall
- 289.0 m
- Year built
- 2008
- Flag state
- Malta per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Liberia. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- HD Hyundai Heavy Industries
- Port of registry
- MONROVIA MRV 2021
- Technical efficiency (design)
- EEXI (7.28 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2022-04-20
- Compliance document expires
- 2023-06-30
Reported CO₂ by year
Reported CO₂ in 2021 was 0.2% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2022, 2023, 2024, so the series has gaps.
From 2020 to 2021, emissions fell 54.3% and CO₂ per nautical mile fell 28.5%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2021 emissions occurred
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 |
| 2020 | DNV | Germany |
| 2025 | RINA HELLAS 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 5 MRV reporting years, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: an efficiency ranking, 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.