Navalyze · Oil tanker · Ship

KARAVAS

IMO: 9420631
Type: Oil tanker
Average cargo carried: 52,489 t
Flag (estimated): Panama
Port of registry: Panama
Technical efficiency: EEXI 3.38 g CO₂/t·nm

ISM company (DoC holder) in 2025: World Tankers Management Pte

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 52,489 t of cargo on average.

Fuel kg/nm

138

Oil tanker median 129 kg/nm (+7%)

CO₂ per transport work (cargo)

8.33

g CO₂/t·nm · Oil tanker median 7.95 (+5%)

Average speed

10.5 kn

Oil tanker median 10.7 kn (−2%)

Fuel per day at sea

34.9 t/day

Fuel consumed

6,544 t

CO₂ emitted

20,717 t

21,039 t CO₂eq incl. CH₄ and N₂O

Distance sailed

47,384 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,499 h

187 days, 51% 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 138 kg/nm · median 129 (+7%)

76.1Ranks 1,009 of 1,665, lowest first191

Average speedThis ship 10.5 kn · median 10.7 (−2%)

8.0Faster than 44% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 8.33 g CO₂/t·nm · median 7.95 (+5%)

4.51Ranks 899 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 ports9%
From the EU36%
Into the EU45%
At berth in the EU10%

60% of this ship's CO₂ falls under the EU ETS (12,352 t).

Fuel burned laden

–

Not reported

CO₂ at berth

2,078 t

10.0% 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

+322 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

KARAVAS
Oil tanker median

120.0140.0160.0180.0

’182018’192019’202020’212021’222022’232023’252025

Average speed, kn

KARAVAS
Oil tanker median

5.010.015.020.0

’182018’192019’202020’212021’222022’232023’252025

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

KARAVAS
Oil tanker median

5.010.015.020.025.0

’182018’192019’202020’212021’222022’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2025	−0.2 kn	−5%	−6%	+7%	+9%	Same speed, fuel per mile down 5%; in line with the speed change.
2022→2023	+0.7 kn	+1%	+8%	+72%	+13%	0.7 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2021→2022	−1.3 kn	+14%	+0%	+22%	+23%	1.3 kn slower, fuel per mile up 14%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+5.3 kn	−24%	+43%	−6%	−29%	5.3 kn faster, fuel per mile down 24%; better than speed alone explains (hull, engine or trade).
2019→2020	−2.1 kn	+27%	−6%	−32%	+9%	2.1 kn slower, fuel per mile up 27%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−8.7 kn	+3%	−50%	+126%	−65%	8.7 kn slower, fuel per mile up 3%; 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	World Tankers Management Pte	6,544	20,717	47,384	4,499	10.5	138	8.33	–
2023	not published	6,454	20,253	44,452	4,171	10.7	145	7.62	–
2022	not published	3,718	11,720	25,807	2,587	10.0	144	6.75	–
2021	not published	2,692	8,477	21,212	1,876	11.3	127	5.51	–
2020	not published	3,769	11,906	22,549	3,758	6.0	167	7.74	–
2019	not published	4,385	13,705	33,247	4,113	8.1	132	7.12	–
2018	not published	1,876	5,864	14,693	874	16.8	128	20.1	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	World Tankers Management Pte	8.33	7.95	+5%	899 of 1,665	DNV	B
2023	not published	7.62	8.44	−10%	767 of 1,797	DNV	B
2022	not published	6.75	8.51	−21%	622 of 1,961	DNV	B
2021	not published	5.51	8.86	−38%	320 of 1,789	DNV	B
2020	not published	7.74	9.03	−14%	724 of 1,870	DNV	A
2019	not published	7.12	8.83	−19%	637 of 1,919	DNV	A
2018	not published	20.1	8.86	+127%	1,535 of 1,779	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.