Navalyze · Oil tanker · Ship

PENTATHLON

IMO: 9438406
Type: Oil tanker
Average cargo carried: 66,433 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEXI 2.82 g CO₂/t·nm
Fuel (estimated): Oil blended with biofuel or another alternative fuel

ISM company (DoC holder) in 2024: Tsakos Shipping & Trading S.A. · part of Tsakos

Report year

2023 at a glance

From the 2023 THETIS-MRV report. Carries about 61,406 t of cargo on average.

Fuel kg/nm

175

Oil tanker median 129 kg/nm (+35%)

CO₂ per transport work (cargo)

8.90

g CO₂/t·nm · Oil tanker median 8.44 (+5%)

Average speed

11.5 kn

Oil tanker median 11.0 kn (+5%)

Fuel per day at sea

48.0 t/day

Fuel consumed

10,492 t

CO₂ emitted

32,843 t

Distance sailed

60,096 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,248 h

219 days, 60% of the year

Within the oil tanker fleet, 2024

Set against all 1,787 oil tanker ships with a full-year 2024 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 178 kg/nm · median 129 (+38%)

79.5Ranks 1,524 of 1,787, lowest first194

Average speedThis ship 11.2 kn · median 10.9 (+3%)

8.1Faster than 59% of oil tanker ships12.3

CO₂ per transport work (cargo)This ship 8.29 g CO₂/t·nm · median 8.06 (+3%)

4.44Ranks 938 of 1,787, lowest first25.7

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 ports0%
From the EU45%
Into the EU49%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

2,289 t

7.0% 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

PENTATHLON
Oil tanker median

120.0140.0160.0180.0200.0

’182018’192019’202020’212021’222022’232023’242024

Average speed, kn

PENTATHLON
Oil tanker median

9.010.011.012.0

’182018’192019’202020’212021’222022’232023’242024

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

PENTATHLON
Oil tanker median

7.08.09.010.0

’182018’192019’202020’212021’222022’232023’242024

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2023→2024	−0.3 kn	+2%	+0%	−7%	−7%	0.3 kn slower, fuel per mile up 2%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.8 kn	+3%	+10%	+12%	−2%	0.8 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.0 kn	−5%	−5%	+34%	−8%	Same speed, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.5 kn	+5%	+1%	+44%	+10%	0.5 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.1 kn	−11%	−10%	−29%	+7%	Same speed, fuel per mile down 11%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.8 kn	+2%	−5%	−35%	+7%	0.8 kn slower, fuel per mile up 2%; 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
2024Bio blend	Tsakos Shipping & Trading S.A.	9,941	30,689	55,724	4,970	11.2	178	8.29	55%
2023	not published	10,492	32,843	60,096	5,248	11.5	175	8.90	–
2022	not published	9,074	28,515	53,665	5,004	10.7	169	9.04	–
2021	not published	7,142	22,347	39,971	3,736	10.7	179	9.87	–
2020	not published	4,710	14,808	27,712	2,480	11.2	170	8.99	–
2019	not published	7,384	23,126	38,764	3,488	11.1	191	8.37	–
2018	not published	11,052	34,557	59,227	4,971	11.9	187	7.82	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2024Bio blend	Tsakos Shipping & Trading S.A.	8.29	8.06	+3%	938 of 1,787	Lloyd's Register	A
2023	not published	8.90	8.44	+5%	972 of 1,797	Lloyd's Register	–
2022	not published	9.04	8.51	+6%	1,067 of 1,961	Lloyd's Register	–
2021	not published	9.87	8.86	+11%	1,032 of 1,789	Lloyd's Register	–
2020	not published	8.99	9.03	−0%	929 of 1,870	Lloyd's Register	–
2019	not published	8.37	8.83	−5%	885 of 1,919	Lloyd's Register	–
2018	not published	7.82	8.86	−12%	708 of 1,779	Lloyd's Register	–

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.