Navalyze · Oil tanker · Ship

GRIMSTAD

IMO: 9336402
Type: Oil tanker
Average cargo carried: 43,963 t
Flag (estimated): Bahamas
Port of registry: Nassau
Technical efficiency: EEXI 3.40 g CO₂/t·nm

ISM company (DoC holder) in 2025: World Tankers Management Pte

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 43,963 t of cargo on average.

Fuel kg/nm

156

Oil tanker median 129 kg/nm (+22%)

CO₂ per transport work (cargo)

11.2

g CO₂/t·nm · Oil tanker median 7.95 (+41%)

Average speed

9.0 kn

Oil tanker median 10.7 kn (−16%)

Fuel per day at sea

33.8 t/day

Fuel consumed

5,981 t

CO₂ emitted

18,882 t

19,176 t CO₂eq incl. CH₄ and N₂O

Distance sailed

38,279 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,244 h

177 days, 48% 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 156 kg/nm · median 129 (+22%)

76.1Ranks 1,269 of 1,665, lowest first191

Average speedThis ship 9.0 kn · median 10.7 (−16%)

8.0Faster than 17% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 11.2 g CO₂/t·nm · median 7.95 (+41%)

4.51Ranks 1,169 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2025

THETIS splits each ship's emissions 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 ports0%
From the EU43%
Into the EU44%
At berth in the EU13%

55% of this ship's CO₂ falls under the EU ETS (10,356 t).

Fuel burned laden

–

Not reported

CO₂ at berth

2,451 t

13.0% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.3 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+294 t

+1.6% CO₂eq on top of CO₂ alone, 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 kg/nm

GRIMSTAD
Oil tanker median

120.0140.0160.0180.0

’182018’222022’232023’242024’252025

Average speed, kn

GRIMSTAD
Oil tanker median

9.09.510.010.511.0

’182018’222022’232023’242024’252025

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

GRIMSTAD
Oil tanker median

5.07.510.012.515.017.5

’182018’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.3 kn	+5%	+2%	+54%	+54%	0.3 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.1 kn	+3%	+5%	−35%	−24%	Same speed, fuel per mile up 3%; in line with the speed change.
2022→2023	−1.8 kn	−15%	−29%	+185%	+60%	1.8 kn slower, fuel per mile down 15%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2022	+1.3 kn	+3%	+16%	−7%	−60%	1.3 kn faster, fuel per mile up 3%; 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	World Tankers Management Pte	5,981	18,882	38,279	4,244	9.0	156	11.2	–
2024	World Tankers Management Pte	3,700	11,603	24,888	2,665	9.3	149	7.29	–
2023	not published	5,566	17,496	38,579	4,206	9.2	144	9.65	–
2022	not published	2,290	7,160	13,513	1,231	11.0	170	6.02	–
2018	not published	2,406	7,573	14,564	1,495	9.7	165	15.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	World Tankers Management Pte	11.2	7.95	+41%	1,169 of 1,665	DNV	B
2024	World Tankers Management Pte	7.29	8.06	−10%	736 of 1,787	DNV	B
2023	not published	9.65	8.44	+14%	1,071 of 1,797	DNV	B
2022	not published	6.02	8.51	−29%	463 of 1,961	DNV	B
2018	not published	15.0	8.86	+70%	1,391 of 1,779	DNV	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.