Chemical tanker · Panama flag · built 2004
BIT OKTANIA: CO₂ emissions 2018–2025
IMO 9284647 EU ETS8 reporting years
- CO₂ reported 2025
- 9,097 t
- Fuel burned
- 2,890 t
- Distance
- 51,032 nm
- Time at sea
- 5,399 h
- Emitted at berth
- 5% of total
- Share of year under way
- 62%
- Gross tonnage
- 9,503
BIT OKTANIA against its type
Built in 2004, it is 6 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 9,503 gross tonnage it is smaller than 82% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 259 chemical tankers here under the Panama flag, 11.0% of the 2,344 on the register. Its MRV returns name it BIT OKTANIA for 2018–2021 and MAVKA for 2022–2025. The reported port of registry changed: Dordrecht (2018–2021), then Panama (2022–2025).
Its 9,097 t of CO₂ for 2025 is 1.6 times the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 178.2 kg CO₂, 29% below the type median of 250.2 kg. It logged 5,399 hours at sea against a median of 2,109 hours for its type that year. 4.8% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2021 (14,607 t) and the lowest 2023 (5,250 t). Its efficiency percentile within the type went from 86 in 2018 to 47 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 1 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 | 9,097 | 2,890 | 51,032 | 5,399 | 440 | 178.2 | 13.9 | 47 |
| 2024 | 7,204 | 2,279 | 33,784 | 3,097 | 610 | 213.2 | 28.8 | 79 |
| 2023 | 5,250 | 1,659 | — | 2,275 | 853 | 333.0 | 93.2 | not ranked |
| 2022 | 10,295 | 3,231 | 44,470 | 6,811 | 701 | 231.5 | 39.8 | 92 |
| 2021 | 14,607 | 4,610 | 69,515 | 5,363 | 887 | 210.1 | 32.5 | 85 |
| 2020 | 13,909 | 4,450 | 63,774 | 5,017 | 1,688 | 218.1 | 37.0 | 89 |
| 2019 | 11,759 | 3,759 | 56,898 | 5,422 | 2,562 | 206.7 | 31.6 | 84 |
| 2018 | 12,251 | 3,915 | 55,334 | 3,749 | 3,279 | 221.4 | 35.1 | 86 |
Vessel particulars
- IMO number
- 9284647
- Previously reported as
- MAVKA
- Ship type
- Chemical tanker
- Gross tonnage
- 9,503
- Length overall
- 134.8 m
- Year built
- 2004
- Flag state
- Panama per EU MRV 2025
- Port of registry
- Panama MRV 2025
- Home port
- Panama
- Ice class
- IA
- Technical efficiency (design)
- EIV (5.9 gCO₂/t·nm)
- Verifier
- Dromon Bureau of Shipping, Greece
- Accreditation
- 1128
- Compliance document issued
- 2026-04-22
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 631 of 1,348 qualifying chemical tankers by EEOI, at the 47th percentile. The dashed line is the type median, 14.4; this vessel reported 13.9.
EEOI divides emissions by transport work, which for this vessel and year was 655,371,038 tonne-miles over 51,032 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 25.8% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 26.3% while distance sailed rose 51.1%and CO₂ per nautical mile fell 16.4%.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
- 9,238 t
- Methane (CH₄)
- 0.14 t
- Nitrous oxide (N₂O)
- 0.52 t
- Under EU ETS
- 5,704 t, 63% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2022 | Korean Register | Korea, Republic of |
| 2025 | Dromon Bureau of Shipping | 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) and Wikimedia Commons.
This page draws on 8 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.