Navalyze · Oil tanker · Ship

SPARTO

IMO: 9865116
Type: Oil tanker
Average cargo carried: 92,041 t
Flag (estimated): Malta
Port of registry: Valletta
Technical efficiency: EEXI 3.16 g CO₂/t·nm

ISM company (DoC holder) in 2025: ENESEL S.A. · part of Enesel

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 92,041 t of cargo on average.

Fuel kg/nm

129

Oil tanker median 129 kg/nm (+0%)

CO₂ per transport work (cargo)

4.37

g CO₂/t·nm · Oil tanker median 7.95 (−45%)

Average speed

12.7 kn

Oil tanker median 10.7 kn (+19%)

Fuel per day at sea

39.0 t/day

Fuel consumed

1,886 t

CO₂ emitted

5,905 t

5,998 t CO₂eq incl. CH₄ and N₂O

Distance sailed

14,681 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,160 h

48 days, 13% 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 129 kg/nm · median 129 (+0%)

76.1Ranks 834 of 1,665, lowest first191

Average speedThis ship 12.7 kn · median 10.7 (+19%)

8.0Faster than 97% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 4.37 g CO₂/t·nm · median 7.95 (−45%)

4.51Ranks 145 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 ports8%
From the EU15%
Into the EU67%
At berth in the EU10%

59% of this ship's CO₂ falls under the EU ETS (3,477 t).

Fuel burned laden

–

Not reported

CO₂ at berth

582 t

9.9% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+93 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

SPARTO
Oil tanker median

80.0100.0120.0140.0160.0

’202020’212021’222022’232023’252025

Average speed, kn

SPARTO
Oil tanker median

9.010.011.012.013.0

’202020’212021’222022’232023’252025

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

SPARTO
Oil tanker median

4.06.08.010.0

’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	+1.3 kn	+3%	+15%	−55%	−31%	1.3 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2022→2023	−0.2 kn	+20%	+17%	+70%	−10%	Same speed, fuel per mile up 20%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−1.0 kn	+6%	−3%	+86%	−8%	1.0 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+3.3 kn	−38%	−15%	+33%	+20%	3.3 kn faster, fuel per mile down 38%; better than speed alone explains (hull, engine 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	ENESEL S.A.	1,886	5,905	14,681	1,160	12.7	129	4.37	–
2023	not published	4,073	12,750	32,724	2,882	11.4	125	6.35	–
2022	not published	1,999	6,244	19,262	1,661	11.6	104	7.06	–
2021	not published	1,016	3,171	10,364	820	12.6	98.1	7.67	–
2020	not published	1,234	3,900	7,801	841	9.3	158	6.38	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	ENESEL S.A.	4.37	7.95	−45%	145 of 1,665	DNV	A
2023	not published	6.35	8.44	−25%	516 of 1,797	DNV	B+C
2022	not published	7.06	8.51	−17%	690 of 1,961	DNV	A
2021	not published	7.67	8.86	−13%	705 of 1,789	DNV	A
2020	not published	6.38	9.03	−29%	432 of 1,870	DNV	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.