Navalyze · Oil tanker · Ship

ORPHEAS

IMO: 9318149
Type: Oil tanker
Average cargo carried: 64,354 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 2.75 g CO₂/t·nm

ISM company (DoC holder) in 2025: LIQUIMAR TANKERS MANAGEMENT SERVICES INC.

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 64,354 t of cargo on average.

Fuel kg/nm

185

Oil tanker median 129 kg/nm (+44%)

CO₂ per transport work (cargo)

9.02

g CO₂/t·nm · Oil tanker median 7.95 (+13%)

Average speed

9.0 kn

Oil tanker median 10.7 kn (−16%)

Fuel per day at sea

40.2 t/day

Fuel consumed

9,000 t

CO₂ emitted

28,236 t

28,678 t CO₂eq incl. CH₄ and N₂O

Distance sailed

48,643 nm

CO₂ ÷ CO₂ per mile

Time at sea

5,378 h

224 days, 61% 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 185 kg/nm · median 129 (+44%)

76.1Ranks 1,470 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 9.02 g CO₂/t·nm · median 7.95 (+13%)

4.51Ranks 974 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 EU46%
Into the EU41%
At berth in the EU9%

56% of this ship's CO₂ falls under the EU ETS (15,954 t).

Fuel burned laden

6,831 t

76% of all fuel; 24% in ballast or unladen

CO₂ at berth

2,589 t

9.2% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.5 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+442 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

ORPHEAS
Oil tanker median

120.0140.0160.0180.0200.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

ORPHEAS
Oil tanker median

9.010.011.012.013.0

’182018’192019’202020’212021’222022’232023’242024’252025

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

ORPHEAS
Oil tanker median

4.06.08.010.0

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.6 kn	+13%	−3%	−27%	+19%	1.6 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−1.5 kn	+3%	−9%	+134%	+23%	1.5 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+1.7 kn	−16%	−3%	−38%	−7%	1.7 kn faster, fuel per mile down 16%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.5 kn	−4%	+0%	+121%	+25%	0.5 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2020→2021	−2.2 kn	+7%	−12%	−18%	+15%	2.2 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+0.4 kn	+14%	+18%	−46%	−26%	0.4 kn faster, fuel per mile up 14%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	+0.4 kn	+9%	+13%	+210%	+29%	0.4 kn faster, fuel per mile up 9%; 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	LIQUIMAR TANKERS MANAGEMENT SERVICES INC.	9,000	28,236	48,643	5,378	9.0	185	9.02	76%
2024	LIQUIMAR TANKERS MANAGEMENT SERVICES INC.	10,814	33,887	66,229	6,238	10.6	163	7.55	59%
2023	not published	4,469	14,105	28,285	2,340	12.1	158	6.14	63%
2022	not published	8,563	27,124	45,311	4,361	10.4	189	6.62	64%
2021	not published	4,047	12,826	20,537	2,066	9.9	197	5.28	67%
2020	not published	4,646	14,679	25,195	2,090	12.1	184	4.60	–
2019	not published	7,548	23,635	46,740	3,987	11.7	162	6.24	–
2018	not published	2,240	7,003	15,063	1,338	11.3	149	4.84	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	LIQUIMAR TANKERS MANAGEMENT SERVICES INC.	9.02	7.95	+13%	974 of 1,665	ABS	A
2024	LIQUIMAR TANKERS MANAGEMENT SERVICES INC.	7.55	8.06	−6%	790 of 1,787	ABS	A
2023	not published	6.14	8.44	−27%	462 of 1,797	ABS	A
2022	not published	6.62	8.51	−22%	600 of 1,961	ABS	A
2021	not published	5.28	8.86	−40%	277 of 1,789	ABS	A
2020	not published	4.60	9.03	−49%	166 of 1,870	ABS	A
2019	not published	6.24	8.83	−29%	476 of 1,919	ABS	A
2018	not published	4.84	8.86	−45%	251 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.