Navalyze · Oil tanker · Ship

BARBAROSA

IMO: 9415399
Type: Oil tanker
Average cargo carried: 105,836 t
Flag (estimated): Libya
Port of registry: Sirte
Technical efficiency: EIV 3.40 g CO₂/t·nm

ISM company (DoC holder) in 2025: General National Maritime Transport Company

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 107,676 t of cargo on average.

Fuel kg/nm

194

Oil tanker median 134 kg/nm (+45%)

CO₂ per transport work (cargo)

5.64

g CO₂/t·nm · Oil tanker median 9.03 (−38%)

Average speed

12.6 kn

Oil tanker median 11.0 kn (+15%)

Fuel per day at sea

58.4 t/day

Fuel consumed

967 t

CO₂ emitted

3,033 t

Distance sailed

4,994 nm

CO₂ ÷ CO₂ per mile

Time at sea

398 h

17 days, 5% 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 187 kg/nm · median 129 (+45%)

76.1Ranks 1,479 of 1,665, lowest first191

Average speedThis ship 10.6 kn · median 10.7 (−1%)

8.0Faster than 46% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 5.55 g CO₂/t·nm · median 7.95 (−30%)

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

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2020

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 EU13%
Into the EU66%
At berth in the EU21%

Fuel burned laden

–

Not reported

CO₂ at berth

638 t

21.1% 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

BARBAROSA
Oil tanker median

100.0150.0200.0250.0300.0

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

Average speed, kn

BARBAROSA
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

BARBAROSA
Oil tanker median

2.04.06.08.010.0

’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	−0.6 kn	+1%	−5%	+392%	+34%	0.6 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.5 kn	−9%	−5%	−73%	−41%	0.5 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2022→2023	−1.1 kn	−3%	−12%	−23%	+161%	1.1 kn slower, fuel per mile down 3%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.7 kn	−24%	−28%	+275%	−61%	0.7 kn slower, fuel per mile down 24%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.1 kn	+44%	+42%	+5%	+24%	Same speed, fuel per mile up 44%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+3.4 kn	−4%	+30%	−76%	−29%	3.4 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.6 kn	−5%	−18%	−16%	+58%	1.6 kn slower, fuel per mile down 5%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	General National Maritime Transport Company	3,821	12,007	20,442	1,927	10.6	187	5.55	–
2024	General National Maritime Transport Company	772	2,420	4,158	370	11.2	186	4.13	93%
2023	not published	3,089	9,630	15,128	1,409	10.7	204	7.05	–
2022	not published	4,151	12,988	19,728	1,670	11.8	210	2.70	–
2021	not published	1,463	4,609	5,261	422	12.5	278	7.01	–
2020	not published	967	3,033	4,994	398	12.6	194	5.64	–
2019	not published	4,295	13,432	21,175	2,291	9.2	203	7.98	–
2018	not published	5,403	16,883	25,323	2,354	10.8	213	5.04	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	General National Maritime Transport Company	5.55	7.95	−30%	355 of 1,665	Lloyd's Register	A+B
2024	General National Maritime Transport Company	4.13	8.06	−49%	127 of 1,787	Lloyd's Register	A+B
2023	not published	7.05	8.44	−16%	654 of 1,797	Lloyd's Register	B
2022	not published	2.70	8.51	−68%	22 of 1,961	Lloyd's Register	B
2021	not published	7.01	8.86	−21%	592 of 1,789	Lloyd's Register	B
2020	not published	5.64	9.03	−38%	307 of 1,870	Lloyd's Register	B
2019	not published	7.98	8.83	−10%	804 of 1,919	Lloyd's Register	B
2018	not published	5.04	8.86	−43%	283 of 1,779	Lloyd's Register	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.