Navalyze · Oil tanker · Ship

ELIAS TSAKOS

IMO: 9724075
Type: Oil tanker
Average cargo carried: 53,925 t
Flag (estimated): Greece
Port of registry: Piraeus
Technical efficiency: EEDI 3.01 g CO₂/t·nm

ISM company (DoC holder) in 2025: Tsakos Shipping & Trading S.A. · part of Tsakos

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 61,107 t of cargo on average.

Fuel kg/nm

148

Oil tanker median 129 kg/nm (+15%)

CO₂ per transport work (cargo)

7.64

g CO₂/t·nm · Oil tanker median 8.86 (−14%)

Average speed

9.4 kn

Oil tanker median 10.7 kn (−12%)

Fuel per day at sea

33.3 t/day

Fuel consumed

5,701 t

CO₂ emitted

18,044 t

Distance sailed

38,649 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,111 h

171 days, 47% 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 844 of 1,665, lowest first191

Average speedThis ship 10.8 kn · median 10.7 (+1%)

8.0Faster than 53% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 7.57 g CO₂/t·nm · median 7.95 (−5%)

4.51Ranks 756 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2021

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 ports41%
From the EU8%
Into the EU35%
At berth in the EU15%

Fuel burned laden

–

Not reported

CO₂ at berth

2,790 t

15.5% 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

ELIAS TSAKOS
Oil tanker median

100.0120.0140.0160.0180.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

ELIAS TSAKOS
Oil tanker median

8.09.010.011.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

ELIAS TSAKOS
Oil tanker median

6.07.08.09.010.011.0

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.0 kn	−0%	+0%	+7%	+6%	Same speed, fuel per mile flat.
2023→2024	+0.0 kn	+2%	+2%	+27%	−9%	Same speed, fuel per mile flat.
2022→2023	−0.7 kn	+14%	+7%	−4%	+10%	0.7 kn slower, fuel per mile up 14%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.1 kn	−24%	−8%	−0%	−6%	2.1 kn faster, fuel per mile down 24%; better than speed alone explains (hull, engine or trade).
2020→2021	+1.2 kn	−18%	−6%	+28%	−27%	1.2 kn faster, fuel per mile down 18%; better than speed alone explains (hull, engine or trade).
2019→2020	−3.2 kn	+35%	−3%	−6%	+54%	3.2 kn slower, fuel per mile up 35%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+1.0 kn	−20%	−12%	−7%	−18%	1.0 kn faster, fuel per mile down 20%; 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	Tsakos Shipping & Trading S.A.	6,517	20,642	50,566	4,669	10.8	129	7.57	69%
2024	Tsakos Shipping & Trading S.A.	6,077	19,152	47,113	4,362	10.8	129	7.17	62%
2023	not published	4,713	14,790	37,109	3,436	10.8	127	7.90	–
2022	not published	4,305	13,608	38,602	3,352	11.5	112	7.15	–
2021	not published	5,701	18,044	38,649	4,111	9.4	148	7.64	–
2020	not published	5,398	17,253	30,086	3,665	8.2	179	10.4	–
2019	not published	4,239	13,326	31,885	2,791	11.4	133	6.78	–
2018	not published	5,688	17,939	34,220	3,286	10.4	166	8.27	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Tsakos Shipping & Trading S.A.	7.57	7.95	−5%	756 of 1,665	Lloyd's Register	A
2024	Tsakos Shipping & Trading S.A.	7.17	8.06	−11%	713 of 1,787	Lloyd's Register	A
2023	not published	7.90	8.44	−6%	809 of 1,797	Lloyd's Register	–
2022	not published	7.15	8.51	−16%	702 of 1,961	Lloyd's Register	–
2021	not published	7.64	8.86	−14%	694 of 1,789	Lloyd's Register	–
2020	not published	10.4	9.03	+15%	1,105 of 1,870	Lloyd's Register	–
2019	not published	6.78	8.83	−23%	576 of 1,919	Lloyd's Register	–
2018	not published	8.27	8.86	−7%	801 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.