Navalyze · Container · Ship

HOUSTON EXPRESS

IMO: 9667150
Type: Container ship
Average cargo carried: 115,105 t
Flag (estimated): Liberia
Port of registry: Monrovia
Technical efficiency: EEXI 6.51 g CO₂/t·nm
Former names: THALASSA MANA

ISM company (DoC holder) in 2025: SFL MANA INC. · part of SFL

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 108,864 t of cargo on average.

Fuel kg/nm

318

Container median 186 kg/nm (+71%)

CO₂ per transport work (cargo)

9.21

g CO₂/t·nm · Container median 17.9 (−49%)

Average speed

18.1 kn

Container median 14.1 kn (+28%)

Fuel per day at sea

138.1 t/day

Fuel consumed

19,747 t

CO₂ emitted

62,298 t

Distance sailed

62,134 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,432 h

143 days, 39% of the year

Within the container fleet, 2025

Set against all 2,208 container 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 257 kg/nm · median 177 (+45%)

78.8Ranks 1,711 of 2,208, lowest first302

Average speedThis ship 15.6 kn · median 13.3 (+17%)

9.1Faster than 85% of container ships16.0

CO₂ per transport work (cargo)This ship 6.95 g CO₂/t·nm · median 16.3 (−57%)

7.22Ranks 183 of 2,208, lowest first46.9

Middle 80% of shipsMiddle 50%Container 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 ports23%
From the EU34%
Into the EU36%
At berth in the EU6%

Fuel burned laden

–

Not reported

CO₂ at berth

3,532 t

5.7% 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 Container median is the middle ship of all container ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

HOUSTON EXPRESS
Container median

150.0200.0250.0300.0350.0

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

Average speed, kn

HOUSTON EXPRESS
Container median

12.014.016.018.020.0

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

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

HOUSTON EXPRESS
Container median

5.010.015.020.025.0

’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	−1.1 kn	−7%	−13%	+34%	−19%	1.1 kn slower, fuel per mile down 7%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+2.5 kn	+12%	+32%	−51%	−4%	2.5 kn faster, fuel per mile up 12%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.6 kn	−7%	−3%	+152%	+9%	0.6 kn faster, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).
2021→2022	−4.5 kn	−18%	−38%	−55%	−10%	4.5 kn slower, fuel per mile down 18%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.4 kn	+1%	+4%	+10%	+7%	0.4 kn faster, fuel per mile flat.
2019→2020	+1.2 kn	+15%	+23%	−28%	+4%	1.2 kn faster, fuel per mile up 15%; in line with the speed change.
2018→2019	−0.1 kn	−7%	−7%	+18%	+4%	Same speed, fuel per mile down 7%; 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	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	SFL MANA INC.	11,858	36,982	46,229	2,961	15.6	257	6.95	–
2024part-year	FPG SHIPHOLDING LIBERIA 7 S.A.	9,504	29,644	34,626	2,075	16.7	275	8.60	–
2024	SFL MANA INC.	9,504	29,644	34,626	2,075	16.7	275	8.60	–
2023	not published	17,165	54,173	70,152	4,951	14.2	245	8.96	–
2022	not published	7,287	22,894	27,810	2,042	13.6	262	8.25	–
2021	not published	19,747	62,298	62,134	3,432	18.1	318	9.21	–
2020	not published	17,738	56,007	56,406	3,195	17.7	315	8.60	–
2019	not published	21,484	67,246	78,399	4,760	16.5	274	8.26	–
2018	not published	19,592	61,242	66,605	4,018	16.6	294	7.94	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Container median	vs Container	Rank	Verifier	Methods
2025	SFL MANA INC.	6.95	16.3	−57%	183 of 2,208	DNV	A
2024part-year	FPG SHIPHOLDING LIBERIA 7 S.A.	–	–	–	–	DNV	A+C
2024	SFL MANA INC.	8.60	17.5	−51%	334 of 1,974	DNV	A
2023	not published	8.96	19.4	−54%	313 of 1,899	DNV	A+C
2022	not published	8.25	19.1	−57%	223 of 1,825	DNV	A
2021	not published	9.21	17.9	−49%	262 of 1,781	DNV	A
2020	not published	8.60	17.6	−51%	270 of 1,797	DNV	A
2019	not published	8.26	18.9	−56%	211 of 1,788	DNV	A
2018	not published	7.94	20.2	−61%	133 of 1,705	DNV	A

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