Oil tanker · Liberia flag · built 2013

HISTRIA AMBRA: CO₂ emissions 2018–2025

IMO 9607631 EU ETS8 reporting years

CO₂ reported 2025: 9,570 t
Fuel burned: 3,020 t
Distance: 30,018 nm
Time at sea: 3,142 h
Emitted at berth: 14% of total
Share of year under way: 36%
Gross tonnage: 25,949

HISTRIA AMBRA against its type

Built in 2013, it is 3 years newer than the median oil tanker on this register, which was built in 2010 (2,896 vessels with a known build year). At 25,949 gross tonnage it is smaller than 87% of the other 2,841 oil tankers with a recorded tonnage. It is one of 718 oil tankers here under the Liberia flag, 20.2% of the 3,548 on the register. The same builder is recorded for 21 other vessels here, 14 of them oil tankers. The returns for 2018–2025 all give Monrovia as port of registry.

Its 9,570 t of CO₂ for 2025 is 21% above the median of 7,922 t among the 1,704 oil tankers on this register that reported for 2025. Per nautical mile it emitted 318.8 kg CO₂, 21% below the type median of 403.2 kg. It logged 3,142 hours at sea against a median of 2,030 hours for its type that year. 13.6% of its 2025 emissions were at berth; the median for oil tankers was 7.8%. Across 8 years with reported emissions, the highest was 2020 (11,132 t) and the lowest 2018 (7,200 t). Its efficiency percentile within the type went from 83 in 2018 to 88 in 2025 (lower is more efficient). The one sister ship listed below with a 2025 return reported a higher or equal CO₂ per nautical mile.

Emissions by year2018–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	9,570	3,020	30,018	3,142	1,305	318.8	16.1	88
2024	9,036	2,880	32,035	3,279	1,340	282.1	12.5	83
2023	8,482	2,682	27,780	2,837	1,299	305.3	14.6	85
2022	8,086	2,569	28,031	2,807	1,022	288.5	13.0	80
2021	8,817	2,816	32,412	3,180	962	272.0	14.4	80
2020	11,132	3,551	36,769	3,942	1,546	302.8	13.9	77
2019	9,227	2,947	29,186	4,573	1,166	316.1	17.0	86
2018	7,200	2,296	22,563	2,860	868	319.1	15.1	83

Vessel particulars

IMO number: 9607631
Ship type: Oil tanker
Gross tonnage: 25,949
Length overall: 179.9 m
Beam: 32.2 m
Year built: 2013
Flag state: Liberia per EU MRV 2025
Builder: Constanța Shipyard
Port of registry: Monrovia MRV 2025
Technical efficiency (design): EEXI (5.31 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-03-03
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 1,271 of 1,448 qualifying oil tankers by EEOI, at the 88th percentile. The dashed line is the type median, 7.5; this vessel reported 16.1.

EEOI divides emissions by transport work, which for this vessel and year was 592,929,988 tonne-miles over 30,018 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 32.9% higher than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 5.9% while distance sailed fell 6.3%and CO₂ per nautical mile rose 13.0%.That points mainly to how efficiently it sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 9,718 t
Methane (CH₄): 0.15 t
Nitrous oxide (N₂O): 0.54 t
Under EU ETS: 7,139 t, 75% of total

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 8 MRV reporting years, an efficiency ranking and 5 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.