Navalyze · Oil tanker · Ship

GREEN AURA

IMO: 9808168
Type: Oil tanker
Average cargo carried: 53,575 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 3.20 g CO₂/t·nm

ISM company (DoC holder) in 2025: Aegean Shipping Management S.A.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 53,575 t of cargo on average.

Fuel kg/nm

134

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

CO₂ per transport work (cargo)

7.81

g CO₂/t·nm · Oil tanker median 7.95 (−2%)

Average speed

9.9 kn

Oil tanker median 10.7 kn (−7%)

Fuel per day at sea

31.8 t/day

Fuel consumed

7,289 t

CO₂ emitted

22,829 t

23,187 t CO₂eq incl. CH₄ and N₂O

Distance sailed

54,561 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,497 h

229 days, 63% 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 134 kg/nm · median 129 (+4%)

76.1Ranks 937 of 1,665, lowest first191

Average speedThis ship 9.9 kn · median 10.7 (−7%)

8.0Faster than 29% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 7.81 g CO₂/t·nm · median 7.95 (−2%)

4.51Ranks 808 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 ports0%
From the EU34%
Into the EU54%
At berth in the EU11%

56% of this ship's CO₂ falls under the EU ETS (12,690 t).

Fuel burned laden

–

Not reported

CO₂ at berth

2,550 t

11.2% 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

+358 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

GREEN AURA
Oil tanker median

110.0120.0130.0140.0150.0

’192019’222022’232023’242024’252025

Average speed, kn

GREEN AURA
Oil tanker median

9.010.011.012.013.014.0

’192019’222022’232023’242024’252025

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

GREEN AURA
Oil tanker median

4.06.08.010.0

’192019’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.0 kn	+5%	−5%	−0%	+16%	1.0 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.2 kn	−14%	−16%	+67%	−23%	Same speed, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.3 kn	+7%	+4%	+75%	+60%	0.3 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2022	−1.9 kn	+17%	+1%	+17%	+20%	1.9 kn slower, fuel per mile up 17%; 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	Aegean Shipping Management S.A.	7,289	22,829	54,561	5,497	9.9	134	7.81	–
2024	Aegean Shipping Management S.A.	6,935	21,701	54,658	5,000	10.9	127	6.72	–
2023	not published	4,844	15,172	32,700	2,937	11.1	148	8.70	–
2022	not published	2,583	8,093	18,668	1,637	11.4	138	5.43	–
2019	not published	1,883	5,878	15,965	1,197	13.3	118	4.53	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Aegean Shipping Management S.A.	7.81	7.95	−2%	808 of 1,665	DNV	A+C
2024	Aegean Shipping Management S.A.	6.72	8.06	−17%	617 of 1,787	Lloyd's Register	A
2023	not published	8.70	8.44	+3%	936 of 1,797	Lloyd's Register	A
2022	not published	5.43	8.51	−36%	331 of 1,961	Lloyd's Register	A
2019	not published	4.53	8.83	−49%	186 of 1,919	Lloyd's Register	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.