Navalyze · Oil tanker · Ship

JANINE K

IMO: 9544607
Type: Oil tanker
Average cargo carried: 21,972 t
Port of registry: Valletta
Technical efficiency: EEXI 5.06 g CO₂/t·nm
Former names: FS SINCERITY

ISM company (DoC holder) in 2025: DONNELLY TANKER MANAGEMENT LTD

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 21,972 t of cargo on average.

Fuel kg/nm

97.8

Oil tanker median 128.5 kg/nm (−24%)

CO₂ per transport work (cargo)

13.99

g CO₂/t·nm · Oil tanker median 7.95 (+76%)

Average speed

9.6 kn

Oil tanker median 10.7 kn (−10%)

Fuel per day at sea

22.6 t/day

Fuel consumed

712 t

CO₂ emitted

2,239 t

2,274 t CO₂eq incl. CH₄ and N₂O

Distance sailed

7,284 nm

CO₂ ÷ CO₂ per mile

Time at sea

755 h

31 days, 9% 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 97.8 kg/nm · median 128.5 (−24%)

76.1Ranks 398 of 1,665, lowest first190.8

Average speedThis ship 9.6 kn · median 10.7 (−10%)

8.0Faster than 25% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 13.99 g CO₂/t·nm · median 7.95 (+76%)

4.51Ranks 1,262 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 ports0%
From the EU62%
Into the EU33%
At berth in the EU5%

52% of this ship's CO₂ falls under the EU ETS (1,174 t).

Fuel burned laden

–

Not reported

CO₂ at berth

110 t

4.9% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.0 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+35 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

JANINE K
Oil tanker median

60.080.0100.0120.0140.0

’182018’212021’222022’232023’242024’252025

Average speed, kn

JANINE K
Oil tanker median

9.510.010.511.011.5

’182018’212021’222022’232023’242024’252025

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

JANINE K
Oil tanker median

5.010.015.020.0

’182018’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.9 kn	+18%	+8%	−41%	−19%	0.9 kn slower, fuel per mile up 18%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−1.0 kn	+9%	−0%	+154%	+187%	1.0 kn slower, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.1 kn	−11%	−1%	−79%	−54%	1.1 kn faster, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2021→2022	−0.9 kn	−2%	−11%	+24%	+75%	0.9 kn slower, fuel per mile down 2%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2021	−0.1 kn	+11%	+10%	+184%	−39%	Same speed, fuel per mile up 11%; 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	DONNELLY TANKER MANAGEMENT LTD	712	2,239	7,284	755	9.6	97.8	13.99	–
2024	DONNELLY TANKER MANAGEMENT LTD	1,023	3,222	12,299	1,167	10.5	83.2	17.27	–
2023	not published	369	1,152	4,850	420	11.5	76.2	6.01	–
2022	not published	2,003	6,319	23,354	2,253	10.4	85.8	13.17	55%
2021	not published	1,646	5,206	18,790	1,660	11.3	87.6	7.51	–
2018	not published	525	1,634	6,627	582	11.4	79.2	12.36	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	DONNELLY TANKER MANAGEMENT LTD	13.99	7.95	+76%	1,262 of 1,665	DNV	A
2024	DONNELLY TANKER MANAGEMENT LTD	17.27	8.06	+114%	1,480 of 1,787	DNV	A
2023	not published	6.01	8.44	−29%	431 of 1,797	DNV	A
2022	not published	13.17	8.51	+55%	1,455 of 1,961	Verifavia	A
2021	not published	7.51	8.86	−15%	674 of 1,789	Verifavia	A
2018	not published	12.36	8.86	+40%	1,254 of 1,779	Verifavia	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.