Navalyze · Oil tanker · Ship

STENA SURPRISE

IMO: 9533995
Type: Oil tanker
Average cargo carried: 66,547 t
Port of registry: Gothenburg
Technical efficiency: EEXI 2.83 g CO₂/t·nm

ISM company (DoC holder) in 2025: BLUE SHIPPING AB

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 66,547 t of cargo on average.

Fuel per mile

156.2 kg/nm

Oil tanker median 128.5 kg/nm (+22%)

CO₂ per transport work (cargo)

7.37

g CO₂/t·nm · Oil tanker median 7.95 (−7%)

Average speed

10.4 kn

Oil tanker median 10.7 kn (−3%)

Fuel per day at sea

39.0 t/day

Fuel consumed

2,892 t

CO₂ emitted

9,081 t

9,223 t CO₂eq incl. CH₄ and N₂O

Distance sailed

18,515 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,778 h

74 days, 20% 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 per mileThis ship 156.2 kg/nm · median 128.5 (+22%)

76.1Ranks 1,265 of 1,665, lowest first190.8

Average speedThis ship 10.4 kn · median 10.7 (−3%)

8.0Faster than 41% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 7.37 g CO₂/t·nm · median 7.95 (−7%)

4.51Ranks 723 of 1,665, lowest first27.66

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2025

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 ports46%
From the EU17%
Into the EU27%
At berth in the EU10%

78% of this ship's CO₂ falls under the EU ETS (7,088 t).

Fuel burned laden

–

Not reported

CO₂ at berth

10.3%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift 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 per mile, kg/nm

STENA SURPRISE
Oil tanker median

120.0140.0160.0180.0200.0

’182018’192019’202020’212021’232023’242024’252025

Average speed, kn

STENA SURPRISE
Oil tanker median

6.08.010.012.014.0

’182018’192019’202020’212021’232023’242024’252025

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

STENA SURPRISE
Oil tanker median

2.04.06.08.010.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−1.5 kn	+5%	−8%	+22%	+23%	1.5 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+1.4 kn	+2%	+15%	−68%	−14%	1.4 kn faster, fuel per mile up 2%; better than speed alone explains (hull, engine or trade).
2021→2023	−0.6 kn	−22%	−26%	+84%	−11%	0.6 kn slower, fuel per mile down 22%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.0 kn	+24%	+24%	+30%	+4%	Same speed, fuel per mile up 24%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+3.7 kn	−7%	+39%	+33%	+92%	3.7 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2018→2019	−5.3 kn	+3%	−40%	+318%	–	5.3 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	BLUE SHIPPING AB	2,892	9,081	18,515	1,778	10.4	156.2	7.37	–
2024part-year	CONQUEROR LIMITED	2,258	7,053	15,235	1,280	11.9	148.2	5.99	–
2024	BLUE SHIPPING AB	2,258	7,053	15,235	1,280	11.9	148.2	5.99	–
2023	not published	6,877	21,515	47,350	4,493	10.5	145.2	6.97	–
2021	not published	4,833	15,149	25,802	2,326	11.1	187.3	7.79	–
2020	not published	2,996	9,353	19,852	1,789	11.1	150.9	7.51	–
2019	not published	2,436	7,626	14,952	2,021	7.4	162.9	3.92	–
2018	not published	564	1,760	3,578	281	12.7	157.6	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	BLUE SHIPPING AB	7.37	7.95	−7%	723 of 1,665	DNV	B+C
2024part-year	CONQUEROR LIMITED	–	–	–	–	DNV	B
2024	BLUE SHIPPING AB	5.99	8.06	−26%	475 of 1,787	DNV	B+C
2023	not published	6.97	8.44	−17%	633 of 1,797	DNV	B
2021	not published	7.79	8.86	−12%	717 of 1,789	DNV	B
2020	not published	7.51	9.03	−17%	683 of 1,870	DNV	B
2019	not published	3.92	8.83	−56%	129 of 1,919	Lloyd's Register	B
2018	not published	–	–	–	–	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.