Navalyze · Oil tanker · Ship

STENA SUEDE

IMO: 9579042
Type: Oil tanker
Average cargo carried: 98,109 t
Flag (estimated): Sweden
Port of registry: Gothenburg
Technical efficiency: EEXI 2.77 g CO₂/t·nm

ISM company (DoC holder) in 2025: Crystal Sky Kommanditbolag

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 87,706 t of cargo on average.

Fuel kg/nm

135

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

CO₂ per transport work (cargo)

4.80

g CO₂/t·nm · Oil tanker median 8.44 (−43%)

Average speed

11.4 kn

Oil tanker median 11.0 kn (+4%)

Fuel per day at sea

36.9 t/day

Fuel consumed

5,746 t

CO₂ emitted

17,947 t

Distance sailed

42,631 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,738 h

156 days, 43% 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 139 kg/nm · median 129 (+8%)

76.1Ranks 1,016 of 1,665, lowest first191

Average speedThis ship 11.8 kn · median 10.7 (+10%)

8.0Faster than 83% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 4.42 g CO₂/t·nm · median 7.95 (−44%)

4.51Ranks 153 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil 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 ports4%
From the EU46%
Into the EU45%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

957 t

5.3% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

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

STENA SUEDE
Oil tanker median

120.0140.0160.0180.0

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

Average speed, kn

STENA SUEDE
Oil tanker median

4.06.08.010.012.014.0

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

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

STENA SUEDE
Oil tanker median

4.06.08.010.0

’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	−0.1 kn	+7%	+6%	+222%	−24%	Same speed, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.5 kn	−3%	+1%	−80%	+20%	0.5 kn faster, fuel per mile down 3%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.7 kn	+4%	−2%	+14%	−24%	0.7 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.1 kn	+5%	+6%	+249%	+2%	Same speed, fuel per mile up 5%; in line with the speed change.
2020→2021	+1.1 kn	−25%	−17%	−50%	+2%	1.1 kn faster, fuel per mile down 25%; better than speed alone explains (hull, engine or trade).
2019→2020	+5.4 kn	−8%	+81%	+375%	+43%	5.4 kn faster, fuel per mile down 8%; better than speed alone explains (hull, engine or trade).

Part-year reports are left out of these comparisons. 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	Crystal Sky Kommanditbolag	3,887	12,137	27,989	2,372	11.8	139	4.42	–
2024part-year	STENA OCEAN LTD	1,133	3,538	8,696	734	11.9	130	5.78	–
2024	Crystal Sky Kommanditbolag	1,133	3,538	8,696	734	11.9	130	5.78	–
2023	not published	5,746	17,947	42,631	3,738	11.4	135	4.80	–
2022	not published	4,852	15,157	37,506	3,102	12.1	129	6.33	–
2021	not published	1,329	4,150	10,755	898	12.0	124	6.20	–
2020	not published	3,518	11,025	21,415	1,965	10.9	164	6.10	–
2019	not published	803	2,508	4,504	814	5.5	178	4.28	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Crystal Sky Kommanditbolag	4.42	7.95	−44%	153 of 1,665	DNV	B+C
2024part-year	STENA OCEAN LTD	–	–	–	–	DNV	B
2024	Crystal Sky Kommanditbolag	5.78	8.06	−28%	431 of 1,787	DNV	B+C
2023	not published	4.80	8.44	−43%	185 of 1,797	DNV	B
2022	not published	6.33	8.51	−26%	533 of 1,961	DNV	B
2021	not published	6.20	8.86	−30%	447 of 1,789	DNV	B
2020	not published	6.10	9.03	−32%	376 of 1,870	DNV	B
2019	not published	4.28	8.83	−52%	167 of 1,919	Lloyd's Register	B

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.