Navalyze · Oil tanker · Ship

VS PROMISE

IMO: 9351438
Type: Oil tanker
Average cargo carried: 9,398 t
Flag (estimated): Isle of Man
Port of registry: Douglas
Technical efficiency: EEXI 4.11 g CO₂/t·nm
Former names: HELLESPONT PROMISE

ISM company (DoC holder) in 2025: Valloeby Promise Limited · part of Valloeby

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 57,267 t of cargo on average.

Fuel kg/nm

143

Oil tanker median 129 kg/nm (+11%)

CO₂ per transport work (cargo)

7.89

g CO₂/t·nm · Oil tanker median 8.86 (−11%)

Average speed

11.2 kn

Oil tanker median 10.7 kn (+5%)

Fuel per day at sea

38.5 t/day

Fuel consumed

3,341 t

CO₂ emitted

10,574 t

Distance sailed

23,403 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,082 h

87 days, 24% 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 137 kg/nm · median 129 (+6%)

76.1Ranks 991 of 1,665, lowest first191

Average speedThis ship 7.7 kn · median 10.7 (−28%)

8.0Faster than 8% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 45.5 g CO₂/t·nm · median 7.95 (+473%)

4.51Ranks 1,597 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 ports18%
From the EU21%
Into the EU51%
At berth in the EU10%

Fuel burned laden

2,726 t

82% of all fuel; 18% in ballast or unladen

CO₂ at berth

1,077 t

10.2% 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

VS PROMISE
Oil tanker median

110.0120.0130.0140.0150.0

’182018’192019’212021’242024’252025

Average speed, kn

VS PROMISE
Oil tanker median

6.08.010.012.014.0

’182018’192019’212021’242024’252025

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

VS PROMISE
Oil tanker median

0.010.020.030.040.050.0

’182018’192019’212021’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−4.0 kn	+19%	−22%	−76%	+383%	4.0 kn slower, fuel per mile up 19%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2024	+0.5 kn	−19%	−16%	+35%	+20%	0.5 kn faster, fuel per mile down 19%; better than speed alone explains (hull, engine or trade).
2019→2021	−0.6 kn	+8%	+3%	+32%	−18%	0.6 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−0.7 kn	−7%	−12%	+74%	+13%	0.7 kn slower, fuel per mile down 7%; in line with the speed change.

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	Valloeby Promise Limited	1,025	3,210	7,500	980	7.7	137	45.5	–
2024	Valloeby Promise Limited	3,629	11,328	31,523	2,694	11.7	115	9.43	–
2021	not published	3,341	10,574	23,403	2,082	11.2	143	7.89	82%
2019	not published	2,347	7,357	17,772	1,504	11.8	132	9.67	–
2018	not published	1,457	4,576	10,217	820	12.5	143	8.57	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Valloeby Promise Limited	45.5	7.95	+473%	1,597 of 1,665	DNV	A
2024	Valloeby Promise Limited	9.43	8.06	+17%	1,097 of 1,787	DNV	A
2021	not published	7.89	8.86	−11%	739 of 1,789	ABS	A
2019	not published	9.67	8.83	+10%	1,094 of 1,919	ABS	A
2018	not published	8.57	8.86	−3%	840 of 1,779	ABS	A

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.