Navalyze · Oil tanker · Ship

MARAN CURRENT

IMO: 9843924
Type: Oil tanker
Average cargo carried: 38,168 t
Flag (estimated): Bahamas
Port of registry: Nassau
Former names: CURRENT SPIRIT

ISM company (DoC holder) in 2025: Maran Shuttle Tankers Norway AS · part of Maran

Report year

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 40,044 t of cargo on average.

Fuel kg/nm

211

Oil tanker median 131 kg/nm (+61%)

CO₂ per transport work (cargo)

16.4

g CO₂/t·nm · Oil tanker median 8.51 (+93%)

Average speed

7.3 kn

Oil tanker median 10.9 kn (−33%)

Fuel per day at sea

37.1 t/day

Fuel consumed

7,742 t

CO₂ emitted

24,174 t

Distance sailed

36,720 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,006 h

209 days, 57% 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 227 kg/nm · median 129 (+76%)

76.1Ranks 1,602 of 1,665, lowest first191

Average speedThis ship 6.5 kn · median 10.7 (−39%)

8.0Faster than 3% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 18.1 g CO₂/t·nm · median 7.95 (+127%)

4.51Ranks 1,355 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2022

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 ports33%
From the EU31%
Into the EU28%
At berth in the EU8%

Fuel burned laden

–

Not reported

CO₂ at berth

2,021 t

8.4% 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

MARAN CURRENT
Oil tanker median

100.0150.0200.0250.0300.0

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

Average speed, kn

MARAN CURRENT
Oil tanker median

4.06.08.010.012.0

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

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

MARAN CURRENT
Oil tanker median

5.010.015.020.0

’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	−0.4 kn	+5%	+0%	−2%	+31%	0.4 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.3 kn	−0%	+4%	−19%	−14%	0.3 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2022→2023	−0.7 kn	+2%	−8%	−10%	−2%	0.7 kn slower, fuel per mile up 2%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.8 kn	+1%	+13%	−7%	+8%	0.8 kn faster, fuel per mile flat; better than speed alone explains (hull, engine or trade).
2020→2021	+1.0 kn	−18%	−3%	+322%	+14%	1.0 kn faster, fuel per mile down 18%; 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	Maran Shuttle Tankers Norway AS	5,928	18,032	26,145	4,013	6.5	227	18.1	–
2024LNG	Altera Infrastructure Norway AS	5,750	16,697	26,736	3,888	6.9	215	13.8	–
2023	not published	7,138	21,535	33,125	5,015	6.6	216	16.1	–
2022	not published	7,742	24,174	36,720	5,006	7.3	211	16.4	–
2021LNG / alt.	not published	8,291	23,843	39,603	6,089	6.5	209	15.2	–
2020	not published	2,410	7,189	9,391	1,718	5.5	257	13.4	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	Maran Shuttle Tankers Norway AS	18.1	7.95	+127%	1,355 of 1,665	DNV	B+C
2024LNG	Altera Infrastructure Norway AS	13.8	8.06	+71%	1,390 of 1,787	DNV	B+C
2023	not published	16.1	8.44	+91%	1,454 of 1,797	DNV	B+C
2022	not published	16.4	8.51	+93%	1,592 of 1,961	DNV	B+C
2021LNG / alt.	not published	15.2	8.86	+72%	1,381 of 1,789	DNV	B+C
2020	not published	13.4	9.03	+48%	1,331 of 1,870	DNV	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.