Navalyze · Oil tanker · Ship

SEAGALAXY

IMO: 9847231
Type: Oil tanker
Average cargo carried: 61,301 t
Flag (estimated): Hong Kong (China)
Port of registry: Hong Kong
Technical efficiency: EEXI 3.07 g CO₂/t·nm

ISM company (DoC holder) in 2025: Valles Steamship (Canada) Ltd

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 61,301 t of cargo on average.

Fuel kg/nm

123

Oil tanker median 129 kg/nm (−4%)

CO₂ per transport work (cargo)

6.31

g CO₂/t·nm · Oil tanker median 7.95 (−21%)

Average speed

11.1 kn

Oil tanker median 10.7 kn (+4%)

Fuel per day at sea

32.7 t/day

Fuel consumed

5,373 t

CO₂ emitted

16,914 t

17,177 t CO₂eq incl. CH₄ and N₂O

Distance sailed

43,726 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,938 h

164 days, 45% 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 123 kg/nm · median 129 (−4%)

76.1Ranks 729 of 1,665, lowest first191

Average speedThis ship 11.1 kn · median 10.7 (+4%)

8.0Faster than 62% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 6.31 g CO₂/t·nm · median 7.95 (−21%)

4.51Ranks 503 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 ports5%
From the EU37%
Into the EU51%
At berth in the EU8%

56% of this ship's CO₂ falls under the EU ETS (9,510 t).

Fuel burned laden

3,439 t

64% of all fuel; 36% in ballast or unladen

CO₂ at berth

1,272 t

7.5% 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

+263 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

SEAGALAXY
Oil tanker median

50.075.0100.0125.0150.0175.0

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

Average speed, kn

SEAGALAXY
Oil tanker median

9.010.011.012.013.0

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

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

SEAGALAXY
Oil tanker median

2.04.06.08.010.0

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

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2025	+0.5 kn	+85%	+93%	+25%	+62%	0.5 kn faster, fuel per mile up 85%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.6 kn	−48%	−55%	+294%	−31%	1.6 kn slower, fuel per mile down 48%; better than speed alone explains (hull, engine or trade).
2021→2022	+2.2 kn	−8%	+11%	−5%	−36%	2.2 kn faster, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).
2020→2021	−1.2 kn	−6%	−16%	+28%	+19%	1.2 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−1.2 kn	−5%	−14%	−53%	+18%	1.2 kn slower, fuel per mile down 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Valles Steamship (Canada) Ltd	5,373	16,914	43,726	3,938	11.1	123	6.31	64%
2023	not published	2,319	7,333	34,865	3,284	10.6	66.5	3.89	18%
2022	not published	1,142	3,592	8,854	727	12.2	129	5.67	82%
2021	not published	1,309	4,190	9,308	927	10.0	141	8.90	68%
2020	not published	1,088	3,489	7,279	650	11.2	150	7.48	–
2019	not published	2,442	7,712	15,464	1,251	12.4	158	6.34	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Valles Steamship (Canada) Ltd	6.31	7.95	−21%	503 of 1,665	ABS	B+C
2023	not published	3.89	8.44	−54%	61 of 1,797	ABS	C
2022	not published	5.67	8.51	−33%	380 of 1,961	ABS	C
2021	not published	8.90	8.86	+0%	903 of 1,789	ABS	C
2020	not published	7.48	9.03	−17%	673 of 1,870	ABS	C
2019	not published	6.34	8.83	−28%	497 of 1,919	ABS	C

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.