Oil tanker · Marshall Islands flag · built 2017
STI RAMBLA: CO₂ emissions 2018–2025
IMO 9730880 MMSI 538005645EU ETS6 reporting years
- CO₂ reported 2025
- 14,220 t
- Fuel burned
- 4,558 t
- Distance
- 33,514 nm
- Time at sea
- 2,890 h
- Emitted at berth
- 2% of total
- Share of year under way
- 33%
- Gross tonnage
- 63,704
STI RAMBLA against its type
Built in 2017, it is 7 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 63,704 gross tonnage it is larger than 65% 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. The same builder is recorded for 196 other vessels here, 75 of them oil tankers. The returns for 2018–2025 all give Majuro as port of registry.
Its 14,220 t of CO₂ for 2025 is 1.8 times the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 424.3 kg CO₂, close to the type median of 403.2 kg. It logged 2,890 hours at sea against a median of 2,030 hours for its type that year. 2.5% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 6 years with reported emissions, the highest was 2024 (18,578 t) and the lowest 2020 (1,399 t). Its efficiency percentile within the type went from 10 in 2018 to 22 in 2025 (lower is more efficient). Of the 4 sister ships 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 | 14,220 | 4,558 | 33,514 | 2,890 | 352 | 424.3 | 5.4 | 22 |
| 2024 | 18,578 | 5,944 | 45,636 | 4,209 | 909 | 407.1 | 6.6 | 37 |
| 2022 | 7,448 | 2,375 | 18,798 | 1,994 | 556 | 396.2 | 6.4 | 31 |
| 2020 | 1,399 | 447 | 3,197 | 467 | 326 | 437.7 | 6.2 | 23 |
| 2019 | 9,292 | 2,964 | 21,137 | 1,899 | 1,390 | 439.6 | 6.4 | 27 |
| 2018 | 4,345 | 1,386 | 11,182 | 1,019 | 455 | 388.5 | 4.5 | 10 |
Vessel particulars
- IMO number
- 9730880
- MMSI
- 538005645
- Ship type
- Oil tanker
- Gross tonnage
- 63,704
- Length overall
- 292.0 m
- Beam
- 44.0 m
- Year built
- 2017
- Flag state
- Marshall Islands per EU MRV 2025
- Port of registry
- Majuro MRV 2025
- Technical efficiency (design)
- EEXI (3 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-27
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 321 of 1,448 qualifying oil tankers by EEOI, at the 22nd percentile. The dashed line is the type median, 7.5; this vessel reported 5.4.
EEOI divides emissions by transport work, which for this vessel and year was 2,638,146,568 tonne-miles over 33,514 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 227.3% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2021, 2023, so the series has gaps.
From 2024 to 2025, emissions fell 23.5% while distance sailed fell 26.6%and CO₂ per nautical mile rose 4.2%.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
- 14,443 t
- Methane (CH₄)
- 0.23 t
- Nitrous oxide (N₂O)
- 0.82 t
- Under EU ETS
- 7,286 t, 51% of total
Observed movementsAIS · Norwegian waters
- First seen
- 01 Aug 2025
- Last seen
- 06 Aug 2025
- Days observed
- 6
- Positions
- 728
- Median speed
- 3.5 kn
Its recorded positions span 62.2°N to 63.2°N and 4.6°E to 7.0°E.
111 hourly points from 728 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
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).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 6 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: 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.