Oil tanker · Cyprus flag · built 2018
BORIS SOKOLOV: CO₂ emissions 2019–2025
IMO 9817315 MMSI 209387000EU ETS7 reporting years
- CO₂ reported 2025
- 39,046 t
- Fuel burned
- 12,436 t
- Distance
- 79,846 nm
- Time at sea
- 7,384 h
- Emitted at berth
- 4% of total
- Share of year under way
- 84%
BORIS SOKOLOV against its type
Built in 2018, it is 8 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). It is one of 29 oil tankers here under the Cyprus flag, 0.8% of the 3,548 on the register. The same builder is recorded for 192 other vessels here, 71 of them oil tankers. The returns for 2019–2025 all give Limassol as port of registry.
Its 39,046 t of CO₂ for 2025 is 4.9 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 489.0 kg CO₂, 21% above the type median of 403.2 kg. It logged 7,384 hours at sea against a median of 2,030 hours for its type that year. 3.7% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 7 years with reported emissions, the highest was 2025 (39,046 t) and the lowest 2020 (18,111 t). Its efficiency percentile within the type went from 92 in 2019 to 95 in 2025 (lower is more efficient). Of the 5 sister ships 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 | 39,046 | 12,436 | 79,846 | 7,384 | 1,461 | 489.0 | 23.2 | 95 |
| 2024 | 38,925 | 12,397 | 74,594 | 7,510 | 1,493 | 521.8 | 24.7 | 95 |
| 2023 | 26,111 | 8,291 | 57,938 | 6,499 | 1,117 | 450.7 | 22.3 | 93 |
| 2022 | 24,089 | 7,651 | 53,377 | 7,095 | 794 | 451.3 | 20.7 | 93 |
| 2021 | 28,418 | 8,963 | 58,414 | 6,876 | 1,008 | 486.5 | 21.4 | 92 |
| 2020 | 18,111 | 5,679 | 35,377 | 3,929 | 535 | 512.0 | 26.8 | 94 |
| 2019 | 21,406 | 6,822 | 41,926 | 3,675 | 599 | 510.6 | 22.7 | 92 |
Vessel particulars
- IMO number
- 9817315
- MMSI
- 209387000
- Call sign
- 5BBS5
- Ship type
- Oil tanker
- Length overall
- 214.0 m
- Beam
- 34.0 m
- Year built
- 2018
- Flag state
- Cyprus per EU MRV 2025
- Port of registry
- Limassol MRV 2025
- Ice class
- IA Super
- Technical efficiency (design)
- EIV (15.62 gCO₂/t·nm)
- Distance in ice
- 14,889 nm
- Time in ice
- 1,360 h
- Verifier
- EMICERT, Greece
- Accreditation
- 874-4
- Compliance document issued
- 2026-03-29
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,370 of 1,448 qualifying oil tankers by EEOI, at the 95th percentile. The dashed line is the type median, 7.5; this vessel reported 23.2.
EEOI divides emissions by transport work, which for this vessel and year was 1,681,553,402 tonne-miles over 79,846 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 82.4% higher than in 2019, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 0.3% while distance sailed rose 7.0%and CO₂ per nautical mile fell 6.3%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 39,656 t
- Methane (CH₄)
- 0.62 t
- Nitrous oxide (N₂O)
- 2.24 t
- Under EU ETS
- 20,253 t, 52% of total
Observed movementsAIS · Norwegian waters
- First seen
- 09 Aug 2025
- Last seen
- 21 Jul 2026
- Days observed
- 43
- Positions
- 2,580
- Median speed
- 12.7 kn
Its recorded positions span 58.2°N to 71.0°N and 4.5°E to 19.3°E.
222 hourly points from 2,580 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
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 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 7 MRV reporting years, an efficiency ranking, 4 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.