Navalyze · Oil tanker · Ship

HULDA MAERSK

IMO: 9399363
Type: Oil tanker
Average cargo carried: 9,644 t
Port of registry: Svendborg
Technical efficiency: EEXI 5.68 g CO₂/t·nm

ISM company (DoC holder) in 2025: SYNERGY DENMARK A/S · part of Synergy Marine

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 9,644 t of cargo on average.

Fuel per mile

95.3 kg/nm

Oil tanker median 128.5 kg/nm (−26%)

CO₂ per transport work (cargo)

30.88

g CO₂/t·nm · Oil tanker median 7.95 (+288%)

Average speed

11.5 kn

Oil tanker median 10.7 kn (+7%)

Fuel per day at sea

26.2 t/day

Fuel consumed

1,351 t

CO₂ emitted

4,225 t

4,291 t CO₂eq incl. CH₄ and N₂O

Distance sailed

14,186 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,236 h

52 days, 14% 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 95.3 kg/nm · median 128.5 (−26%)

76.1Ranks 376 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 30.88 g CO₂/t·nm · median 7.95 (+288%)

4.51Ranks 1,528 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 ports19%
From the EU47%
Into the EU22%
At berth in the EU12%

41% of this ship's CO₂ falls under the EU ETS (1,734 t).

Fuel burned laden

31%

69% in ballast or unladen

CO₂ at berth

12.1%

Alongside in EU ports

Methane (CH₄)

0.1 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

HULDA MAERSK
Oil tanker median

80.0100.0120.0140.0

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

Average speed, kn

HULDA MAERSK
Oil tanker median

10.511.011.512.012.5

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

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

HULDA MAERSK
Oil tanker median

0.050.0100150200

’202020’212021’222022’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−0.1 kn	−10%	−11%	−57%	+21%	Same speed, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.2 kn	+3%	+1%	−6%	–	Same speed, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.7 kn	−6%	+0%	+68%	–	0.7 kn faster, fuel per mile down 6%; better than speed alone explains (hull, engine or trade).
2021→2022	−1.1 kn	+13%	+3%	−34%	−50%	1.1 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.3 kn	−26%	−28%	+295%	+48%	0.3 kn slower, fuel per mile down 26%; better than speed alone explains (hull, engine or trade).
2019→2020	+1.1 kn	−4%	+6%	−19%	–	1.1 kn faster, fuel per mile down 4%; 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	SYNERGY DENMARK A/S	1,351	4,225	14,186	1,236	11.5	95.3	30.88	31%
2024	SYNERGY DENMARK A/S	3,491	10,988	32,810	2,829	11.6	106.4	25.56	39%
2023	not published	3,625	11,353	34,977	2,964	11.8	103.6	–	51%
2022	not published	2,289	7,179	20,839	1,874	11.1	109.8	11.14	77%
2021	not published	3,057	9,621	31,450	2,580	12.2	97.2	22.23	–
2020	not published	1,039	3,277	7,966	635	12.5	130.5	15.00	–
2019	not published	1,337	4,181	9,823	864	11.4	136.1	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	SYNERGY DENMARK A/S	30.88	7.95	+288%	1,528 of 1,665	ABS	A+C
2024	SYNERGY DENMARK A/S	25.56	8.06	+217%	1,607 of 1,787	ABS	A+C
2023	not published	–	–	–	–	ABS	A
2022	not published	11.14	74.09	−85%	2 of 78	ABS	B+C
2021	not published	22.23	159.48	−86%	15 of 72	ABS	B+C
2020	not published	15.00	120.71	−88%	9 of 81	ABS	B+C
2019	not published	–	–	–	–	ABS	B+C

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.