Navalyze · Oil tanker · Ship

HISTRIA AMBRA

IMO: 9607631
Type: Oil tanker
Average cargo carried: 19,753 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 5.31 g CO₂/t·nm

ISM company (DoC holder) in 2025: Histria Shipmanagement Srl

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 19,753 t of cargo on average.

Fuel kg/nm

101

Oil tanker median 129 kg/nm (−22%)

CO₂ per transport work (cargo)

16.1

g CO₂/t·nm · Oil tanker median 7.95 (+103%)

Average speed

9.6 kn

Oil tanker median 10.7 kn (−10%)

Fuel per day at sea

23.1 t/day

Fuel consumed

3,020 t

CO₂ emitted

9,570 t

9,718 t CO₂eq incl. CH₄ and N₂O

Distance sailed

30,018 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,142 h

131 days, 36% of the year

Within the oil tanker fleet, 2025

Set against all 1,665 oil tanker ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 101 kg/nm · median 129 (−22%)

76.1Ranks 421 of 1,665, lowest first191

Average speedThis ship 9.6 kn · median 10.7 (−10%)

8.0Faster than 24% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 16.1 g CO₂/t·nm · median 7.95 (+103%)

4.51Ranks 1,322 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports35%
From the EU24%
Into the EU27%
At berth in the EU14%

75% of this ship's CO₂ falls under the EU ETS (7,139 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,305 t

13.6% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+148 t

+1.5% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

Over the years

Full-year reports only. The Oil tanker median is the middle ship of all oil tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

HISTRIA AMBRA
Oil tanker median

80.0100.0120.0140.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

HISTRIA AMBRA
Oil tanker median

6.08.010.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

HISTRIA AMBRA
Oil tanker median

7.510.012.515.017.5

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.2 kn	+12%	+9%	−6%	+30%	Same speed, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.0 kn	−7%	−7%	+15%	−15%	Same speed, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.2 kn	+5%	+3%	−1%	+12%	Same speed, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.2 kn	+6%	+3%	−14%	−10%	Same speed, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.9 kn	−10%	−1%	−12%	+3%	0.9 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2019→2020	+2.9 kn	−4%	+39%	+26%	−18%	2.9 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.5 kn	−1%	−20%	+29%	+13%	1.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Histria Shipmanagement Srl	3,020	9,570	30,018	3,142	9.6	101	16.1	–
2024	Histria Shipmanagement Srl	2,880	9,036	32,035	3,279	9.8	89.9	12.5	–
2023	not published	2,682	8,482	27,780	2,837	9.8	96.5	14.6	–
2022	not published	2,569	8,086	28,031	2,807	10.0	91.7	13.0	–
2021	not published	2,816	8,817	32,412	3,180	10.2	86.9	14.4	–
2020	not published	3,551	11,132	36,769	3,942	9.3	96.6	13.9	–
2019	not published	2,947	9,227	29,186	4,573	6.4	101	17.0	–
2018	not published	2,296	7,200	22,563	2,860	7.9	102	15.1	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Histria Shipmanagement Srl	16.1	7.95	+103%	1,322 of 1,665	DNV	A
2024	Histria Shipmanagement Srl	12.5	8.06	+55%	1,340 of 1,787	DNV	A
2023	not published	14.6	8.44	+73%	1,411 of 1,797	DNV	A
2022	not published	13.0	8.51	+53%	1,447 of 1,961	DNV	A
2021	not published	14.4	8.86	+62%	1,344 of 1,789	DNV	A
2020	not published	13.9	9.03	+54%	1,359 of 1,870	DNV	A
2019	not published	17.0	8.83	+93%	1,566 of 1,919	DNV	A
2018	not published	15.1	8.86	+71%	1,397 of 1,779	DNV	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Oil tanker ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's oil tanker ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.