Navalyze · Oil tanker · Ship

CLEAROCEAN AJAX

IMO: 9850692
Type: Oil tanker
Average cargo carried: 65,129 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 3.13 g CO₂/t·nm
Ice class: IC

ISM company (DoC holder) in 2025: OCEANGOLD TANKERS INC.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 65,129 t of cargo on average.

Fuel kg/nm

126

Oil tanker median 129 kg/nm (−2%)

CO₂ per transport work (cargo)

6.06

g CO₂/t·nm · Oil tanker median 7.95 (−24%)

Average speed

11.5 kn

Oil tanker median 10.7 kn (+7%)

Fuel per day at sea

34.9 t/day

Fuel consumed

4,757 t

CO₂ emitted

14,894 t

15,128 t CO₂eq incl. CH₄ and N₂O

Distance sailed

37,737 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,272 h

136 days, 37% 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 126 kg/nm · median 129 (−2%)

76.1Ranks 789 of 1,665, lowest first191

Average speedThis ship 11.5 kn · median 10.7 (+7%)

8.0Faster than 75% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 6.06 g CO₂/t·nm · median 7.95 (−24%)

4.51Ranks 460 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 ports4%
From the EU22%
Into the EU64%
At berth in the EU10%

57% of this ship's CO₂ falls under the EU ETS (8,499 t).

Fuel burned laden

–

Not reported

CO₂ at berth

1,449 t

9.7% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.2 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+234 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

CLEAROCEAN AJAX
Oil tanker median

100.0150.0200.0250.0300.0350.0

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

Average speed, kn

CLEAROCEAN AJAX
Oil tanker median

8.09.010.011.012.013.0

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

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

CLEAROCEAN AJAX
Oil tanker median

0.010.020.030.0

’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	−0.8 kn	+4%	−2%	+174%	+38%	0.8 kn slower, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−0.1 kn	−39%	−40%	+156%	−50%	Same speed, fuel per mile down 39%; better than speed alone explains (hull, engine or trade).
2022→2023	+2.2 kn	+15%	+39%	−76%	−9%	2.2 kn faster, fuel per mile up 15%; better than speed alone explains (hull, engine or trade).
2021→2022	+1.3 kn	+44%	+65%	+98%	+62%	1.3 kn faster, fuel per mile up 44%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	−0.1 kn	−60%	−60%	+22%	−79%	Same speed, fuel per mile down 60%; 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	OCEANGOLD TANKERS INC.	4,757	14,894	37,737	3,272	11.5	126	6.06	–
2024	OCEANGOLD TANKERS INC.	1,662	5,194	13,774	1,119	12.3	121	4.38	–
2023	not published	1,071	3,368	5,373	435	12.4	199	8.80	–
2022	not published	3,844	12,028	22,196	2,172	10.2	173	9.67	–
2021	not published	1,342	4,200	11,183	1,250	8.9	120	5.97	–
2020	not published	2,753	8,706	9,167	1,022	9.0	300	28.7	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	OCEANGOLD TANKERS INC.	6.06	7.95	−24%	460 of 1,665	DNV	B
2024	OCEANGOLD TANKERS INC.	4.38	8.06	−46%	172 of 1,787	DNV	B
2023	not published	8.80	8.44	+4%	956 of 1,797	DNV	B
2022	not published	9.67	8.51	+14%	1,151 of 1,961	DNV	B
2021	not published	5.97	8.86	−33%	401 of 1,789	DNV	B
2020	not published	28.7	9.03	+217%	1,715 of 1,870	DNV	B

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.