Navalyze · Oil tanker · Ship

IVER BALANCE

IMO: 9588251
Type: Oil tanker
Average cargo carried: 2,318 t
Flag (estimated): Italy
Port of registry: Genoa
Technical efficiency: EIV 19.76 g CO₂/t·nm

ISM company (DoC holder) in 2025: Iver Ships BV

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 2,318 t of cargo on average.

Fuel kg/nm

46.0

Oil tanker median 129 kg/nm (−64%)

CO₂ per transport work (cargo)

63.3

g CO₂/t·nm · Oil tanker median 7.95 (+696%)

Average speed

9.3 kn

Oil tanker median 10.7 kn (−13%)

Fuel per day at sea

10.3 t/day

Fuel consumed

1,817 t

CO₂ emitted

5,796 t

5,885 t CO₂eq incl. CH₄ and N₂O

Distance sailed

39,512 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,247 h

177 days, 48% 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 46.0 kg/nm · median 129 (−64%)

76.1Ranks 18 of 1,665, lowest first191

Average speedThis ship 9.3 kn · median 10.7 (−13%)

8.0Faster than 20% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 63.3 g CO₂/t·nm · median 7.95 (+696%)

4.51Ranks 1,637 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 ports15%
From the EU40%
Into the EU43%
At berth in the EU2%

58% of this ship's CO₂ falls under the EU ETS (3,390 t).

Fuel burned laden

–

Not reported

CO₂ at berth

132 t

2.3% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+89 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

IVER BALANCE
Oil tanker median

25.050.075.0100.0125.0150.0

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

Average speed, kn

IVER BALANCE
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

IVER BALANCE
Oil tanker median

0.020.040.060.080.0100

’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	+1.2 kn	−2%	+13%	−13%	+3%	1.2 kn faster, fuel per mile down 2%; better than speed alone explains (hull, engine or trade).
2023→2024	+0.2 kn	−19%	−17%	+27%	−14%	Same speed, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2022→2023	−2.9 kn	+36%	+0%	−36%	+40%	2.9 kn slower, fuel per mile up 36%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.5 kn	−1%	−6%	+23%	−19%	0.5 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+1.3 kn	−17%	−6%	−11%	−14%	1.3 kn faster, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2019→2020	+5.1 kn	−15%	+75%	+49%	−14%	5.1 kn faster, fuel per mile down 15%; better than speed alone explains (hull, engine or trade).
2018→2019	+0.3 kn	+7%	+15%	+24%	+30%	0.3 kn faster, fuel per mile up 7%; better than speed alone explains (hull, engine 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	Iver Ships BV	1,817	5,796	39,512	4,247	9.3	46.0	63.3	–
2024	Iver Ships BV	2,140	6,688	45,431	5,639	8.1	47.1	61.5	–
2023	not published	2,076	6,485	35,847	4,522	7.9	57.9	71.7	–
2022	not published	2,385	7,446	56,193	5,194	10.8	42.5	51.2	–
2021	not published	1,971	6,168	45,707	4,041	11.3	43.1	63.1	–
2020	not published	2,651	8,277	51,233	5,141	10.0	51.8	73.6	–
2019	not published	2,091	6,524	34,333	7,023	4.9	60.9	85.2	–
2018	not published	1,576	4,922	27,783	6,055	4.6	56.7	65.3	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Iver Ships BV	63.3	7.95	+696%	1,637 of 1,665	RINA	B
2024	Iver Ships BV	61.5	8.06	+663%	1,760 of 1,787	RINA	B
2023	not published	71.7	8.44	+749%	1,781 of 1,797	RINA	B
2022	not published	51.2	8.51	+502%	1,906 of 1,961	RINA	B
2021	not published	63.1	8.86	+612%	1,759 of 1,789	RINA	B
2020	not published	73.6	9.03	+715%	1,857 of 1,870	RINA	B
2019	not published	85.2	8.83	+865%	1,911 of 1,919	RINA	B
2018	not published	65.3	8.86	+637%	1,756 of 1,779	RINA	B

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.