Navalyze · Oil tanker · Ship

YASA POLARIS

IMO: 9907457
Type: Oil tanker
Average cargo carried: 58,526 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEDI 2.69 g CO₂/t·nm

ISM company (DoC holder) in 2025: YASA TANKER ISLETMECILIGI A.S.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 58,526 t of cargo on average.

Fuel kg/nm

133

Oil tanker median 129 kg/nm (+4%)

CO₂ per transport work (cargo)

7.11

g CO₂/t·nm · Oil tanker median 7.95 (−11%)

Average speed

10.8 kn

Oil tanker median 10.7 kn (+1%)

Fuel per day at sea

34.5 t/day

Fuel consumed

7,366 t

CO₂ emitted

23,044 t

23,406 t CO₂eq incl. CH₄ and N₂O

Distance sailed

55,378 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,122 h

213 days, 58% 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 133 kg/nm · median 129 (+4%)

76.1Ranks 924 of 1,665, lowest first191

Average speedThis ship 10.8 kn · median 10.7 (+1%)

8.0Faster than 53% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 7.11 g CO₂/t·nm · median 7.95 (−11%)

4.51Ranks 671 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 ports3%
From the EU49%
Into the EU41%
At berth in the EU7%

55% of this ship's CO₂ falls under the EU ETS (12,738 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,680 t

7.3% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.4 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+362 t

+1.6% 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

YASA POLARIS
Oil tanker median

125.0130.0135.0140.0145.0

’222022’232023’242024’252025

Average speed, kn

YASA POLARIS
Oil tanker median

9.510.010.511.011.5

’222022’232023’242024’252025

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

YASA POLARIS
Oil tanker median

6.57.07.58.08.59.0

’222022’232023’252025

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	−8%	−10%	+33%	–	Same speed, fuel per mile down 8%; in line with the speed change.
2023→2024	+1.2 kn	+10%	+25%	−41%	–	1.2 kn faster, fuel per mile up 10%; better than speed alone explains (hull, engine or trade).
2022→2023	−1.6 kn	−10%	−23%	+69%	−5%	1.6 kn slower, fuel per mile down 10%; 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	YASA TANKER ISLETMECILIGI A.S.	7,366	23,044	55,378	5,122	10.8	133	7.11	–
2024	YASA TANKER ISLETMECILIGI A.S.	6,014	18,835	41,694	3,745	11.1	144	–	–
2023	not published	9,187	28,791	70,317	7,128	9.9	131	6.79	–
2022	not published	6,031	18,912	41,627	3,616	11.5	145	7.15	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	YASA TANKER ISLETMECILIGI A.S.	7.11	7.95	−11%	671 of 1,665	ClassNK	C
2024	YASA TANKER ISLETMECILIGI A.S.	–	–	–	–	ClassNK	A
2023	not published	6.79	8.44	−20%	598 of 1,797	ClassNK	A
2022	not published	7.15	8.51	−16%	702 of 1,961	ClassNK	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.