Navalyze · Oil tanker · Ship

ALASKA

IMO: 9302607
Type: Oil tanker
Average cargo carried: 75,249 t
Port of registry: Majuro
Technical efficiency: EEXI 2.78 g CO₂/t·nm
Ice class: IA

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

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 75,249 t of cargo on average.

Fuel per mile

166.0 kg/nm

Oil tanker median 128.5 kg/nm (+29%)

CO₂ per transport work (cargo)

6.94

g CO₂/t·nm · Oil tanker median 7.95 (−13%)

Average speed

11.5 kn

Oil tanker median 10.7 kn (+7%)

Fuel per day at sea

45.8 t/day

Fuel consumed

13,487 t

CO₂ emitted

42,441 t

43,103 t CO₂eq incl. CH₄ and N₂O

Distance sailed

81,268 nm

CO₂ ÷ CO₂ per mile

Time at sea

7,071 h

295 days, 81% 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 per mileThis ship 166.0 kg/nm · median 128.5 (+29%)

76.1Ranks 1,350 of 1,665, lowest first190.8

Average speedThis ship 11.5 kn · median 10.7 (+7%)

8.0Faster than 74% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 6.94 g CO₂/t·nm · median 7.95 (−13%)

4.51Ranks 634 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 ports29%
From the EU31%
Into the EU34%
At berth in the EU7%

68% of this ship's CO₂ falls under the EU ETS (28,783 t).

Fuel burned laden

75%

25% in ballast or unladen

CO₂ at berth

6.8%

Alongside in EU ports

Methane (CH₄)

0.7 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift 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 per mile, kg/nm

ALASKA
Oil tanker median

120.0140.0160.0180.0200.0220.0

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

Average speed, kn

ALASKA
Oil tanker median

9.010.011.012.0

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

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

ALASKA
Oil tanker median

5.010.015.020.025.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+2.3 kn	−4%	+19%	+83%	−19%	2.3 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.4 kn	−14%	−17%	−11%	−6%	0.4 kn slower, fuel per mile down 14%; better than speed alone explains (hull, engine or trade).
2022→2023	−2.4 kn	+30%	+5%	+504%	−59%	2.4 kn slower, fuel per mile up 30%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.3 kn	−18%	+1%	−84%	+223%	2.3 kn faster, fuel per mile down 18%; better than speed alone explains (hull, engine or trade).
2020→2021	−1.4 kn	−1%	−13%	−13%	+2%	1.4 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.4 kn	−2%	+2%	+99%	−8%	0.4 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2018→2019	+1.6 kn	−5%	+12%	+39%	+31%	1.6 kn faster, fuel per mile down 5%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	Tsakos Shipping & Trading S.A.	13,487	42,441	81,268	7,071	11.5	166.0	6.94	75%
2024	Tsakos Shipping & Trading S.A.	7,710	24,268	44,470	4,809	9.2	173.4	8.60	83%
2023	not published	10,120	31,763	50,075	5,212	9.6	202.1	9.13	–
2022	not published	1,285	4,048	8,296	693	12.0	154.9	22.12	–
2021	not published	9,730	30,549	51,628	5,305	9.7	188.5	6.84	–
2020	not published	11,286	35,579	59,380	5,336	11.1	190.1	6.68	–
2019	not published	5,781	18,175	29,815	2,795	10.7	193.9	7.23	–
2018	not published	4,346	13,591	21,375	2,359	9.1	203.3	5.54	–

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.	6.94	7.95	−13%	634 of 1,665	Lloyd's Register	A
2024	Tsakos Shipping & Trading S.A.	8.60	8.06	+7%	990 of 1,787	Lloyd's Register	A
2023	not published	9.13	8.44	+8%	1,008 of 1,797	Lloyd's Register	–
2022	not published	22.12	8.51	+160%	1,730 of 1,961	Lloyd's Register	–
2021	not published	6.84	8.86	−23%	564 of 1,789	Lloyd's Register	–
2020	not published	6.68	9.03	−26%	499 of 1,870	Lloyd's Register	–
2019	not published	7.23	8.83	−18%	662 of 1,919	Lloyd's Register	–
2018	not published	5.54	8.86	−37%	366 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.