Navalyze · Chemical tanker · Ship

AEGEAN STAR

IMO: 9828900
Type: Chemical tanker
Average cargo carried: 35,108 t
Port of registry: Majuro
Technical efficiency: EEDI 4.08 g CO₂/t·nm

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 35,108 t of cargo on average.

Fuel per mile

81.5 kg/nm

Chemical tanker median 81.9 kg/nm (−0%)

CO₂ per transport work (cargo)

7.29

g CO₂/t·nm · Chemical tanker median 16.23 (−55%)

Average speed

11.9 kn

Chemical tanker median 11.2 kn (+6%)

Fuel per day at sea

23.2 t/day

Fuel consumed

2,172 t

CO₂ emitted

6,819 t

Distance sailed

26,641 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,244 h

94 days, 26% of the year

Within the chemical tanker fleet, 2023

Set against all 1,314 chemical tanker ships with a full-year 2023 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 per mileThis ship 81.5 kg/nm · median 81.9 (−0%)

55.0Ranks 645 of 1,314, lowest first114.9

Average speedThis ship 11.9 kn · median 11.2 (+6%)

9.1Faster than 71% of chemical tanker ships12.7

CO₂ per transport work (cargo)This ship 7.29 g CO₂/t·nm · median 16.23 (−55%)

9.07Ranks 42 of 1,314, lowest first43.80

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2023

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 ports9%
From the EU30%
Into the EU49%
At berth in the EU12%

Fuel burned laden

84%

16% in ballast or unladen

CO₂ at berth

11.8%

Alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

–

Uplift from CH₄ and N₂O, counted in full from 2026

Over the years

Full-year reports only. The Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel per mile, kg/nm

AEGEAN STAR
Chemical tanker median

75.080.085.090.0

’192019’202020’232023

Average speed, kn

AEGEAN STAR
Chemical tanker median

10.011.012.013.0

’192019’202020’232023

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

AEGEAN STAR
Chemical tanker median

5.010.015.020.0

’192019’202020’232023

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2020→2023	+1.5 kn	+0%	+14%	+236%	+12%	1.5 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2019→2020	−2.0 kn	+5%	−12%	−68%	−18%	2.0 kn slower, fuel per mile up 5%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2023	not published	2,172	6,819	26,641	2,244	11.9	81.5	7.29	84%
2020	not published	645	2,029	7,927	760	10.4	81.4	6.49	–
2019	not published	1,894	5,936	24,489	1,967	12.4	77.3	7.91	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2023	not published	7.29	16.23	−55%	42 of 1,314	ABS	A
2020	not published	6.49	16.16	−60%	13 of 1,312	ABS	B
2019	not published	7.91	17.32	−54%	58 of 1,321	ABS	B

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical 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 chemical 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.