Navalyze · Oil tanker · Ship

PORTINARI

IMO: 9547714
Type: Oil tanker
Average cargo carried: 19,701 t
Flag (estimated): Brazil
Port of registry: Rio De Janeiro
Technical efficiency: EEDI 3.58 g CO₂/t·nm

ISM company (DoC holder) in 2025: PETROBRAS TRANSPORTE S.A - TRANSPETRO

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 54,197 t of cargo on average.

Fuel kg/nm

145

Oil tanker median 129 kg/nm (+12%)

CO₂ per transport work (cargo)

8.34

g CO₂/t·nm · Oil tanker median 8.86 (−6%)

Average speed

12.7 kn

Oil tanker median 10.7 kn (+19%)

Fuel per day at sea

44.1 t/day

Fuel consumed

1,387 t

CO₂ emitted

4,338 t

Distance sailed

9,597 nm

CO₂ ÷ CO₂ per mile

Time at sea

756 h

32 days, 9% 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 127 kg/nm · median 129 (−2%)

76.1Ranks 794 of 1,665, lowest first191

Average speedThis ship 13.1 kn · median 10.7 (+22%)

8.0Faster than 99% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 20.3 g CO₂/t·nm · median 7.95 (+155%)

4.51Ranks 1,400 of 1,665, lowest first27.7

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2021

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 EU40%
Into the EU59%
At berth in the EU1%

Fuel burned laden

816 t

59% of all fuel; 41% in ballast or unladen

CO₂ at berth

58 t

1.3% 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

PORTINARI
Oil tanker median

125.0130.0135.0140.0145.0

’212021’252025

Average speed, kn

PORTINARI
Oil tanker median

10.011.012.013.014.0

’212021’252025

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

PORTINARI
Oil tanker median

5.010.015.020.025.0

’212021’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2021→2025	+0.4 kn	−12%	−10%	−40%	+143%	0.4 kn faster, fuel per mile down 12%; 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	PETROBRAS TRANSPORTE S.A - TRANSPETRO	725	2,292	5,731	436	13.1	127	20.3	–
2021	not published	1,387	4,338	9,597	756	12.7	145	8.34	59%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	PETROBRAS TRANSPORTE S.A - TRANSPETRO	20.3	7.95	+155%	1,400 of 1,665	ABS	B
2021	not published	8.34	8.86	−6%	819 of 1,789	ABS	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.