Navalyze · Oil tanker · Ship

SEAWAYS SAN SABA

IMO: 9593426
Type: Oil tanker
Average cargo carried: 659,520 t
Port of registry: Majuro
Technical efficiency: EEXI 2.82 g CO₂/t·nm
Former names: SAN SABA

ISM company (DoC holder) in 2025: DSS 1 LLC

Report year

2025 at a glance

From the 2025 THETIS-MRV report. Carries about 659,520 t of cargo on average.

Fuel per mile

157.9 kg/nm

CO₂ per transport work (cargo)

0.75

g CO₂/t·nm

Average speed

10.0 kn

Fuel per day at sea

37.9 t/day

Fuel consumed

7,370 t

CO₂ emitted

23,089 t

23,451 t CO₂eq incl. CH₄ and N₂O

Distance sailed

46,678 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,672 h

195 days, 53% of the year

Within the oil tanker fleet, 2024

Set against all 1,787 oil tanker ships with a full-year 2024 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 153.4 kg/nm · median 129.0 (+19%)

79.5Ranks 1,303 of 1,787, lowest first193.6

Average speedThis ship 11.8 kn · median 10.9 (+8%)

8.1Faster than 78% of oil tanker ships12.3

CO₂ per transport work (cargo)This ship 7.00 g CO₂/t·nm · median 8.06 (−13%)

4.44Ranks 681 of 1,787, lowest first25.70

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 ports1%
From the EU42%
Into the EU50%
At berth in the EU6%

54% of this ship's CO₂ falls under the EU ETS (12,378 t).

Fuel burned laden

65%

35% in ballast or unladen

CO₂ at berth

6.4%

Alongside in EU ports

Methane (CH₄)

0.4 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

SEAWAYS SAN SABA
Oil tanker median

120.0140.0160.0180.0200.0

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

Average speed, kn

SEAWAYS SAN SABA
Oil tanker median

8.010.012.014.0

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

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

SEAWAYS SAN SABA
Oil tanker median

2.04.06.08.010.0

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

Year on year

Year	Speed	Fuel per mile	Fuel per day	Distance	CO₂ per TW	Reading
2024→2025	−1.8 kn	+3%	−13%	−23%	–	1.8 kn slower, fuel per mile up 3%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.0 kn	−1%	−1%	+94%	+21%	Same speed, fuel per mile flat.
2022→2023	−0.7 kn	+21%	+14%	+653%	+83%	0.7 kn slower, fuel per mile up 21%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+2.6 kn	−35%	−17%	−70%	−34%	2.6 kn faster, fuel per mile down 35%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.5 kn	+7%	+2%	−27%	−32%	0.5 kn slower, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	+2.2 kn	+15%	+47%	−49%	−27%	2.2 kn faster, fuel per mile up 15%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.3 kn	+6%	+1%	+33%	+90%	0.3 kn slower, fuel per mile up 6%; 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	At sea h	Speed kn	Fuel kg/nm	CO₂ g/t·nm	Laden fuel
2025	DSS 1 LLC	7,370	23,089	46,678	4,672	10.0	157.9	0.75	65%
2024	DSS 1 LLC	9,337	29,251	60,878	5,161	11.8	153.4	7.00	69%
2023	not published	4,856	15,231	31,423	2,656	11.8	154.6	5.77	71%
2022	not published	535	1,688	4,175	333	12.5	128.2	3.16	100%
2021	not published	2,776	8,776	14,127	1,426	9.9	196.5	4.80	88%
2020	not published	3,532	11,152	19,307	1,850	10.4	183.0	7.06	78%
2019	not published	6,059	18,946	38,061	4,655	8.2	159.2	9.65	44%
2018	not published	4,322	13,501	28,707	3,368	8.5	150.6	5.09	74%

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Oil tanker median	vs Oil tanker	Rank	Verifier	Methods
2025	DSS 1 LLC	–	–	–	–	ABS	B+C
2024	DSS 1 LLC	7.00	8.06	−13%	681 of 1,787	ABS	B+C
2023	not published	5.77	8.44	−32%	379 of 1,797	ABS	C
2022	not published	3.16	8.51	−63%	37 of 1,961	ABS	C
2021	not published	4.80	8.86	−46%	193 of 1,789	ABS	C
2020	not published	7.06	9.03	−22%	582 of 1,870	ABS	C
2019	not published	9.65	8.83	+9%	1,090 of 1,919	ABS	C
2018	not published	5.09	8.86	−43%	292 of 1,779	ABS	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.