Navalyze · Oil tanker · Ship

HISTRIA IVORY

IMO: 9356244
Type: Oil tanker
Average cargo carried: 15,863 t
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 5.30 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 15,863 t of cargo on average.

Fuel kg/nm

86.2

Oil tanker median 129 kg/nm (−33%)

CO₂ per transport work (cargo)

17.3

g CO₂/t·nm · Oil tanker median 7.95 (+117%)

Average speed

9.5 kn

Oil tanker median 10.7 kn (−11%)

Fuel per day at sea

19.5 t/day

Fuel consumed

3,007 t

CO₂ emitted

9,550 t

9,698 t CO₂eq incl. CH₄ and N₂O

Distance sailed

34,900 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,692 h

154 days, 42% 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 86.2 kg/nm · median 129 (−33%)

76.1Ranks 271 of 1,665, lowest first191

Average speedThis ship 9.5 kn · median 10.7 (−11%)

8.0Faster than 22% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 17.3 g CO₂/t·nm · median 7.95 (+117%)

4.51Ranks 1,344 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 ports34%
From the EU25%
Into the EU26%
At berth in the EU15%

69% of this ship's CO₂ falls under the EU ETS (6,618 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,433 t

15.0% 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 IVORY
Oil tanker median

80.0100.0120.0140.0

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

Average speed, kn

HISTRIA IVORY
Oil tanker median

4.06.08.010.012.0

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

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

HISTRIA IVORY
Oil tanker median

5.010.015.020.025.0

’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	+0.3 kn	−22%	−20%	+18%	−4%	0.3 kn faster, fuel per mile down 22%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.3 kn	+1%	−12%	−6%	+0%	1.3 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.7 kn	+18%	+11%	+20%	+20%	0.7 kn slower, fuel per mile up 18%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.2 kn	−5%	+19%	+231%	−2%	2.2 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2020→2021	−3.0 kn	−4%	−28%	−64%	+17%	3.0 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+6.6 kn	−4%	+113%	+355%	−47%	6.6 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2018→2019	−4.1 kn	−9%	−48%	−64%	+74%	4.1 kn slower, fuel per mile down 9%; 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	3,007	9,550	34,900	3,692	9.5	86.2	17.3	–
2024	Histria Shipmanagement Srl	3,266	10,265	29,692	3,227	9.2	110	17.9	–
2023	not published	3,425	10,845	31,496	2,989	10.5	109	17.8	–
2022	not published	2,415	7,615	26,302	2,340	11.2	91.8	14.9	–
2021	not published	766	2,400	7,944	880	9.0	96.4	15.2	–
2020	not published	2,181	6,806	21,772	1,812	12.0	100	13.0	–
2019	not published	501	1,567	4,781	884	5.4	105	24.5	–
2018	not published	1,509	4,749	13,151	1,378	9.5	115	14.1	–

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	17.3	7.95	+117%	1,344 of 1,665	DNV	A
2024	Histria Shipmanagement Srl	17.9	8.06	+122%	1,490 of 1,787	DNV	A
2023	not published	17.8	8.44	+111%	1,495 of 1,797	DNV	A
2022	not published	14.9	8.51	+75%	1,541 of 1,961	DNV	A
2021	not published	15.2	8.86	+72%	1,381 of 1,789	DNV	A
2020	not published	13.0	9.03	+44%	1,315 of 1,870	DNV	A
2019	not published	24.5	8.83	+177%	1,716 of 1,919	DNV	A
2018	not published	14.1	8.86	+59%	1,341 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.