Navalyze · Oil tanker · Ship

STAR RIVER

IMO: 9815458
Type: Oil tanker
Average cargo carried: 22,854 t
Port of registry: Majuro
Technical efficiency: EEDI 5.35 g CO₂/t·nm

ISM company (DoC holder) in 2025: White Flag Ventures LIV LLC

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 22,854 t of cargo on average.

Fuel per mile

92.9 kg/nm

Oil tanker median 128.5 kg/nm (−28%)

CO₂ per transport work (cargo)

12.78

g CO₂/t·nm · Oil tanker median 7.95 (+61%)

Average speed

11.6 kn

Oil tanker median 10.7 kn (+8%)

Fuel per day at sea

25.9 t/day

Fuel consumed

2,133 t

CO₂ emitted

6,709 t

6,814 t CO₂eq incl. CH₄ and N₂O

Distance sailed

22,972 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,976 h

82 days, 23% 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 per mileThis ship 92.9 kg/nm · median 128.5 (−28%)

76.1Ranks 346 of 1,665, lowest first190.8

Average speedThis ship 11.6 kn · median 10.7 (+8%)

8.0Faster than 78% of oil tanker ships12.1

CO₂ per transport work (cargo)This ship 12.78 g CO₂/t·nm · median 7.95 (+61%)

4.51Ranks 1,229 of 1,665, lowest first27.66

Middle 80% of shipsMiddle 50%Oil tanker medianThis ship

Where the emissions happen, 2025

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 EU34%
Into the EU57%
At berth in the EU9%

54% of this ship's CO₂ falls under the EU ETS (3,643 t).

Fuel burned laden

–

Not reported

CO₂ at berth

8.6%

Alongside in EU ports

Methane (CH₄)

0.1 t

Mainly from LNG; small for oil

CO₂eq ÷ CO₂

1.016

Uplift 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 per mile, kg/nm

STAR RIVER
Oil tanker median

80.0100.0120.0140.0

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

Average speed, kn

STAR RIVER
Oil tanker median

7.510.012.515.017.5

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

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

STAR RIVER
Oil tanker median

0.050.0100150

’192019’202020’212021’222022’232023’252025

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	+2.3 kn	−9%	+14%	+34%	–	2.3 kn faster, fuel per mile down 9%; better than speed alone explains (hull, engine or trade).
2023→2024	−1.4 kn	−5%	−17%	−24%	–	1.4 kn slower, fuel per mile down 5%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	+0.5 kn	+5%	+12%	+300%	−87%	0.5 kn faster, fuel per mile up 5%; in line with the speed change.
2021→2022	−6.7 kn	+9%	−34%	−85%	+629%	6.7 kn slower, fuel per mile up 9%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+5.0 kn	−6%	+33%	−25%	−11%	5.0 kn faster, fuel per mile down 6%; better than speed alone explains (hull, engine or trade).
2019→2020	+3.4 kn	+12%	+59%	+37%	+7%	3.4 kn faster, fuel per mile up 12%; better than speed alone explains (hull, engine or trade).

Part-year reports are left out of these comparisons. 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	White Flag Ventures LIV LLC	2,133	6,709	22,972	1,976	11.6	92.9	12.78	–
2024part-year	SYNERGY MARITIME PRIVATE LIMITED	603	1,889	6,081	623	9.8	99.2	–	–
2024	White Flag Ventures LIV LLC	1,739	5,461	17,088	1,832	9.3	101.8	–	–
2023	not published	2,396	7,578	22,484	2,092	10.7	106.6	14.32	–
2022	not published	568	1,802	5,625	554	10.2	101.1	114.14	–
2021	not published	3,360	10,577	36,311	2,152	16.9	92.5	15.65	–
2020	not published	4,749	14,895	48,314	4,049	11.9	98.3	17.56	–
2019	not published	3,083	9,635	35,262	4,171	8.5	87.4	16.40	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	White Flag Ventures LIV LLC	12.78	7.95	+61%	1,229 of 1,665	ClassNK	A
2024part-year	SYNERGY MARITIME PRIVATE LIMITED	–	–	–	–	ClassNK	A
2024	White Flag Ventures LIV LLC	–	–	–	–	ClassNK	A
2023	not published	14.32	8.44	+70%	1,402 of 1,797	ClassNK	A
2022	not published	114.14	8.51	+1,241%	1,961 of 1,961	ClassNK	A
2021	not published	15.65	8.86	+77%	1,404 of 1,789	ClassNK	A
2020	not published	17.56	9.03	+94%	1,526 of 1,870	DNV	C
2019	not published	16.40	8.83	+86%	1,545 of 1,919	DNV	C

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.