Navalyze · Oil tanker · Ship

CLEAROCEAN MUSTANG

IMO: 9893761
Type: Oil tanker
Average cargo carried: 20,587 t
Technical efficiency: EEDI 4.51 g CO₂/t·nm

ISM company (DoC holder) in 2025: FLEET MANAGEMENT LIMITED

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 20,587 t of cargo on average.

Fuel per mile

70.3 kg/nm

Oil tanker median 128.5 kg/nm (−45%)

CO₂ per transport work (cargo)

10.64

g CO₂/t·nm · Oil tanker median 7.95 (+34%)

Average speed

11.4 kn

Oil tanker median 10.7 kn (+7%)

Fuel per day at sea

19.3 t/day

Fuel consumed

507 t

CO₂ emitted

1,580 t

1,605 t CO₂eq incl. CH₄ and N₂O

Distance sailed

7,212 nm

CO₂ ÷ CO₂ per mile

Time at sea

631 h

26 days, 7% 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 70.3 kg/nm · median 128.5 (−45%)

76.1Ranks 132 of 1,665, lowest first190.8

Average speedThis ship 11.4 kn · median 10.7 (+7%)

8.0Faster than 72% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 10.64 g CO₂/t·nm · median 7.95 (+34%)

4.51Ranks 1,122 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 ports0%
From the EU44%
Into the EU49%
At berth in the EU8%

54% of this ship's CO₂ falls under the EU ETS (850 t).

Fuel burned laden

49%

51% in ballast or unladen

CO₂ at berth

7.6%

Alongside in EU ports

Methane (CH₄)

0.0 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

CLEAROCEAN MUSTANG
Oil tanker median

60.080.0100.0120.0140.0

’212021’222022’232023’242024’252025

Average speed, kn

CLEAROCEAN MUSTANG
Oil tanker median

10.011.012.013.0

’212021’222022’232023’242024’252025

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

CLEAROCEAN MUSTANG
Oil tanker median

5.010.015.020.0

’212021’222022’232023’242024’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−0.5 kn	−16%	−20%	+15%	+41%	0.5 kn slower, fuel per mile down 16%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.9 kn	−4%	−10%	−70%	−22%	0.9 kn slower, fuel per mile down 4%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.6 kn	+21%	+27%	−17%	−47%	0.6 kn faster, fuel per mile up 21%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.0 kn	+6%	+6%	−35%	+79%	Same speed, fuel per mile up 6%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	FLEET MANAGEMENT LIMITED	507	1,580	7,212	631	11.4	70.3	10.64	49%
2024	FLEET MANAGEMENT LIMITED	524	1,645	6,245	524	11.9	83.9	7.57	84%
2023	not published	1,808	5,717	20,764	1,622	12.8	87.1	9.72	–
2022	not published	1,798	5,682	24,905	2,045	12.2	72.2	18.21	–
2021	not published	2,598	8,126	38,334	3,137	12.2	67.8	10.18	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	FLEET MANAGEMENT LIMITED	10.64	7.95	+34%	1,122 of 1,665	ClassNK	A+C
2024	FLEET MANAGEMENT LIMITED	7.57	8.06	−6%	792 of 1,787	ClassNK	B+C
2023	not published	9.72	8.44	+15%	1,078 of 1,797	ClassNK	B+C
2022	not published	18.21	8.51	+114%	1,645 of 1,961	ClassNK	–
2021	not published	10.18	8.86	+15%	1,063 of 1,789	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.