Navalyze · Oil tanker · Ship

DECATHLON

IMO: 9462926
Type: Oil tanker
Average cargo carried: 54,781 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEXI 2.83 g CO₂/t·nm

ISM company (DoC holder) in 2025: DELMER MARINE CORP.

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 70,492 t of cargo on average.

Fuel kg/nm

172

Oil tanker median 129 kg/nm (+34%)

CO₂ per transport work (cargo)

7.66

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

Average speed

10.5 kn

Oil tanker median 10.7 kn (−2%)

Fuel per day at sea

43.4 t/day

Fuel consumed

10,635 t

CO₂ emitted

33,356 t

Distance sailed

61,773 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,878 h

245 days, 67% 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 183 kg/nm · median 129 (+42%)

76.1Ranks 1,455 of 1,665, lowest first191

Average speedThis ship 12.2 kn · median 10.7 (+14%)

8.0Faster than 93% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 10.5 g CO₂/t·nm · median 7.95 (+31%)

4.51Ranks 1,104 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 ports3%
From the EU39%
Into the EU53%
At berth in the EU5%

Fuel burned laden

–

Not reported

CO₂ at berth

1,778 t

5.3% 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

DECATHLON
Oil tanker median

120.0140.0160.0180.0200.0

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

Average speed, kn

DECATHLON
Oil tanker median

9.010.011.012.013.0

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

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

DECATHLON
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	+17%	+18%	−21%	+50%	Same speed, fuel per mile up 17%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.6 kn	+8%	+3%	+46%	−5%	0.6 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.3 kn	−0%	+2%	+197%	−3%	0.3 kn faster, fuel per mile flat.
2021→2022	+2.0 kn	−16%	+0%	−69%	−2%	2.0 kn faster, fuel per mile down 16%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.7 kn	+5%	+13%	+18%	+4%	0.7 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2019→2020	−0.7 kn	−2%	−9%	+19%	+5%	0.7 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−1.1 kn	+3%	−7%	−10%	−13%	1.1 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	DELMER MARINE CORP.	12,037	37,724	65,897	5,395	12.2	183	10.5	–
2024	DELMER MARINE CORP.	12,942	40,502	83,035	6,832	12.2	156	6.98	–
2023	not published	8,216	25,669	56,929	4,458	12.8	144	7.32	–
2022	not published	2,770	8,678	19,181	1,533	12.5	144	7.51	–
2021	not published	10,635	33,356	61,773	5,878	10.5	172	7.66	–
2020	not published	8,559	26,951	52,409	5,345	9.8	163	7.34	–
2019	not published	7,325	22,875	44,188	4,190	10.5	166	7.00	–
2018	not published	7,975	24,954	49,322	4,252	11.6	162	8.00	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	DELMER MARINE CORP.	10.5	7.95	+31%	1,104 of 1,665	Lloyd's Register	B
2024	DELMER MARINE CORP.	6.98	8.06	−13%	675 of 1,787	Lloyd's Register	B
2023	not published	7.32	8.44	−13%	710 of 1,797	Lloyd's Register	B
2022	not published	7.51	8.51	−12%	786 of 1,961	Lloyd's Register	B
2021	not published	7.66	8.86	−14%	701 of 1,789	Lloyd's Register	–
2020	not published	7.34	9.03	−19%	638 of 1,870	Lloyd's Register	–
2019	not published	7.00	8.83	−21%	608 of 1,919	Lloyd's Register	–
2018	not published	8.00	8.86	−10%	749 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.