Navalyze · Oil tanker · Ship

ACHILLEAS

IMO: 9458494
Type: Oil tanker
Average cargo carried: 83,144 t
Flag (estimated): Greece
Port of registry: Chios
Technical efficiency: EEXI 2.83 g CO₂/t·nm

ISM company (DoC holder) in 2025: Sun Enterprises ltd

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 83,144 t of cargo on average.

Fuel kg/nm

165

Oil tanker median 129 kg/nm (+29%)

CO₂ per transport work (cargo)

6.24

g CO₂/t·nm · Oil tanker median 7.95 (−22%)

Average speed

8.7 kn

Oil tanker median 10.7 kn (−19%)

Fuel per day at sea

34.6 t/day

Fuel consumed

6,159 t

CO₂ emitted

19,340 t

19,642 t CO₂eq incl. CH₄ and N₂O

Distance sailed

37,276 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,267 h

178 days, 49% 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 165 kg/nm · median 129 (+29%)

76.1Ranks 1,345 of 1,665, lowest first191

Average speedThis ship 8.7 kn · median 10.7 (−19%)

8.0Faster than 14% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 6.24 g CO₂/t·nm · median 7.95 (−22%)

4.51Ranks 488 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 ports4%
From the EU29%
Into the EU59%
At berth in the EU9%

55% of this ship's CO₂ falls under the EU ETS (10,615 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,696 t

8.8% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.3 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+302 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

ACHILLEAS
Oil tanker median

125.0150.0175.0200.0225.0

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

Average speed, kn

ACHILLEAS
Oil tanker median

6.08.010.012.014.0

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

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

ACHILLEAS
Oil tanker median

5.06.07.08.09.010.0

’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	+1.5 kn	+2%	+24%	+36%	+1%	1.5 kn faster, fuel per mile up 2%; better than speed alone explains (hull, engine or trade).
2023→2024	−4.6 kn	−0%	−39%	−20%	+16%	4.6 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.5 kn	−24%	−27%	+737%	−29%	0.5 kn slower, fuel per mile down 24%; better than speed alone explains (hull, engine or trade).
2021→2022	+1.7 kn	+29%	+50%	−64%	+16%	1.7 kn faster, fuel per mile up 29%; better than speed alone explains (hull, engine or trade).
2020→2021	−1.0 kn	+1%	−8%	−33%	+9%	1.0 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.7 kn	−7%	−12%	+89%	−15%	0.7 kn slower, fuel per mile down 7%; in line with the speed change.

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	Sun Enterprises ltd	6,159	19,340	37,276	4,267	8.7	165	6.24	–
2024	Sun Enterprises ltd	4,415	13,890	27,358	3,783	7.2	161	6.17	–
2023	not published	5,568	17,418	34,389	2,911	11.8	162	5.34	–
2022	not published	877	2,764	4,111	335	12.3	213	7.50	48%
2021	not published	1,896	5,994	11,494	1,087	10.6	165	6.49	59%
2020	not published	2,816	8,890	17,233	1,480	11.6	163	5.96	–
2019	not published	1,598	5,008	9,115	741	12.3	175	7.04	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Sun Enterprises ltd	6.24	7.95	−22%	488 of 1,665	DNV	A
2024	Sun Enterprises ltd	6.17	8.06	−23%	506 of 1,787	DNV	A
2023	not published	5.34	8.44	−37%	289 of 1,797	DNV	A
2022	not published	7.50	8.51	−12%	784 of 1,961	ABS	A
2021	not published	6.49	8.86	−27%	501 of 1,789	ABS	A
2020	not published	5.96	9.03	−34%	353 of 1,870	ABS	A
2019	not published	7.04	8.83	−20%	620 of 1,919	ABS	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.