Navalyze · Oil tanker · Ship

MONTE ULIA

IMO: 9803285
Type: Oil tanker
Average cargo carried: 73,480 t
Flag (estimated): Portugal
Port of registry: Madeira
Technical efficiency: EEDI 2.68 g CO₂/t·nm

ISM company (DoC holder) in 2025: Ibaizabal Tankers SL

Report year

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 1,863,154 t of cargo on average.

Fuel kg/nm

153

CO₂ per transport work (cargo)

0.26

g CO₂/t·nm

Average speed

11.0 kn

Fuel per day at sea

40.4 t/day

Fuel consumed

9,672 t

CO₂ emitted

30,726 t

Distance sailed

63,428 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,751 h

240 days, 66% 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 132 kg/nm · median 129 (+3%)

76.1Ranks 909 of 1,665, lowest first191

Average speedThis ship 11.3 kn · median 10.7 (+6%)

8.0Faster than 69% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 5.69 g CO₂/t·nm · median 7.95 (−28%)

4.51Ranks 383 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2022

THETIS splits each ship's CO₂ 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 ports8%
From the EU42%
Into the EU40%
At berth in the EU10%

Fuel burned laden

4,265 t

44% of all fuel; 56% in ballast or unladen

CO₂ at berth

3,202 t

10.4% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

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

MONTE ULIA
Oil tanker median

100.0120.0140.0160.0180.0

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

Average speed, kn

MONTE ULIA
Oil tanker median

8.09.010.011.012.0

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

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

MONTE ULIA
Oil tanker median

0.02.55.07.510.0

’192019’202020’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+1.1 kn	−11%	−2%	+30%	−24%	1.1 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.2 kn	−9%	−19%	−0%	–	1.2 kn slower, fuel per mile down 9%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.4 kn	+7%	+11%	−12%	–	0.4 kn faster, fuel per mile up 7%; in line with the speed change.
2021→2022	+2.4 kn	+12%	+44%	+120%	–	2.4 kn faster, fuel per mile up 12%; better than speed alone explains (hull, engine or trade).
2020→2021	−2.0 kn	+17%	−5%	−11%	–	2.0 kn slower, fuel per mile up 17%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+1.8 kn	−16%	+1%	+13%	−1%	1.8 kn faster, fuel per mile down 16%; 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	Ibaizabal Tankers SL	9,581	30,349	72,587	6,412	11.3	132	5.69	–
2024	Ibaizabal Tankers SL	8,308	26,297	55,859	5,468	10.2	149	7.44	–
2023	not published	9,167	29,029	55,912	4,900	11.4	164	0.52	49%
2022	not published	9,672	30,726	63,428	5,751	11.0	153	0.26	44%
2021	not published	3,915	12,377	28,785	3,347	8.6	136	0.62	73%
2020	not published	3,758	11,862	32,250	3,048	10.6	117	0.74	43%
2019	not published	3,955	12,409	28,603	3,250	8.8	138	0.75	53%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Ibaizabal Tankers SL	5.69	7.95	−28%	383 of 1,665	Lloyd's Register	A
2024	Ibaizabal Tankers SL	7.44	8.06	−8%	767 of 1,787	Lloyd's Register	A
2023	not published	–	–	–	–	Lloyd's Register	A
2022	not published	–	–	–	–	Lloyd's Register	A
2021	not published	–	–	–	–	Lloyd's Register	A
2020	not published	0.74	9.03	−92%	6 of 1,870	Lloyd's Register	A
2019	not published	0.75	8.83	−92%	21 of 1,919	Lloyd's Register	–

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.