Navalyze · Chemical tanker · Ship

PORTOLA

IMO: 9449443
Type: Chemical tanker
Average cargo carried: 4,798 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEXI 10.70 g CO₂/t·nm

ISM company (DoC holder) in 2025: Borealis Denizcilik A.S

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 4,798 t of cargo on average.

Fuel kg/nm

57.3

Chemical tanker median 79.7 kg/nm (−28%)

CO₂ per transport work (cargo)

37.8

g CO₂/t·nm · Chemical tanker median 15.0 (+151%)

Average speed

9.8 kn

Chemical tanker median 11.1 kn (−12%)

Fuel per day at sea

13.5 t/day

Fuel consumed

1,332 t

CO₂ emitted

4,218 t

4,283 t CO₂eq incl. CH₄ and N₂O

Distance sailed

23,245 nm

CO₂ ÷ CO₂ per mile

Time at sea

2,368 h

99 days, 27% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical 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 57.3 kg/nm · median 79.7 (−28%)

52.8Ranks 207 of 1,460, lowest first111

Average speedThis ship 9.8 kn · median 11.1 (−12%)

8.8Faster than 21% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 37.8 g CO₂/t·nm · median 15.0 (+151%)

7.93Ranks 1,279 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical 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 ports3%
From the EU26%
Into the EU66%
At berth in the EU5%

54% of this ship's CO₂ falls under the EU ETS (2,269 t).

Fuel burned laden

–

Not reported

CO₂ at berth

200 t

4.7% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

+65 t

+1.5% CO₂eq on top of CO₂ alone, from CH₄ and N₂O; counted in full from 2026

Over the years

Full-year reports only. The Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

PORTOLA
Chemical tanker median

50.060.070.080.090.0100.0

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

Average speed, kn

PORTOLA
Chemical tanker median

6.08.010.012.0

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

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

PORTOLA
Chemical tanker median

0.020.040.060.080.0

’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	+3.1 kn	−38%	−9%	+1,943%	−44%	3.1 kn faster, fuel per mile down 38%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.8 kn	+31%	+3%	−97%	+67%	1.8 kn slower, fuel per mile up 31%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.1 kn	−0%	−12%	−19%	+18%	1.1 kn slower, fuel per mile flat; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	−0.4 kn	−22%	−25%	+180%	−8%	0.4 kn slower, fuel per mile down 22%; better than speed alone explains (hull, engine or trade).
2020→2021	+0.8 kn	+44%	+56%	−30%	+34%	0.8 kn faster, fuel per mile up 44%; 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	Borealis Denizcilik A.S	1,332	4,218	23,245	2,368	9.8	57.3	37.8	–
2024	Borealis Denizcilik A.S	105	331	1,138	170	6.7	91.9	67.4	–
2023	not published	2,313	7,318	33,005	3,875	8.5	70.1	40.3	–
2022	not published	2,878	9,106	40,992	4,251	9.6	70.2	34.1	–
2021	not published	1,312	4,149	14,632	1,465	10.0	89.7	37.2	–
2020	not published	1,292	4,058	20,811	2,251	9.2	62.1	27.7	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Borealis Denizcilik A.S	37.8	15.0	+151%	1,279 of 1,460	DNV	B+C
2024	Borealis Denizcilik A.S	67.4	16.7	+303%	1,246 of 1,274	DNV	B+C
2023	not published	40.3	16.2	+148%	1,154 of 1,314	DNV	B+C
2022	not published	34.1	16.1	+112%	1,185 of 1,409	DNV	B+C
2021	not published	37.2	16.7	+123%	1,160 of 1,343	DNV	B+C
2020	not published	27.7	16.2	+71%	1,022 of 1,312	DNV	B+C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical 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 chemical 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.