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Compare operators, 2025

Pick a company or group, then the competitors to hold it against, or compare verifiers. Every figure comes from the public THETIS-MRV reports for EU and EEA voyages.

Stenayour view

Side by side

All 2025 reports of each operator, across every ship type. Change is against 2024 where the operator reported then.

	Stena
Ships	39
CO₂ emitted	1.1 Mt−8.7%
Fuel per mile	151 kg/nm
Average speed	14.8 kn
CO₂ at berth	7.5%
Ships burning LNG	0
Main segment	Ro-pax

Fuel per mile and speed depend on ship size and type; compare them within a segment below.

Segment by segment

Efficiency only compares within a ship type. Each row gives the CO₂ per transport work of an operator's typical (median) ship, and the bar sets it against the typical ship of the whole segment: to the left of the line it emits less CO₂ for the same transport work, to the right more.

Ro-pax

CO₂ per transport work (pax) in g CO₂/pax·nm · segment median 567

Stena703 (+24% vs median)
← bettersegment medianworse →

CO₂ per transport work (freight) in g CO₂/t·nm · segment median 253

Stena141 (−44% vs median)
← bettersegment medianworse →

	Ships	Per work (pax)	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
Stena	25	703 141 freight	+24% −44% freight	160	15.2	5,133	6.0%	–
Segment median		567 253 freight	0%

Ro-ro

CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 95.2

Stena145 (+53% vs median)
← bettersegment medianworse →

	Ships	Per work	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
Stena	5	145	+53%	112	14.6	2,948	4.8%	–
Segment median		95.2	0%

Chemical tanker

CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 15.0

Stena9.1 (−39% vs median)
← bettersegment medianworse →

	Ships	Per work	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
Stena	6	9.1	−39%	98	11.3	2,264	5.8%	–
Segment median		15.0	0%

Oil tanker

CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 8.0

Stena7.7 (−3% vs median)
← bettersegment medianworse →

	Ships	Per work	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
Stena	1	7.7	−3%	89	11.8	2,267	4.6%	–
Segment median		8.0	0%

Verification and monitoring

Who verifies each operator's reports, and which MRV methods its ships use to measure fuel (share of reports).

	Verifiers (ships)	A · delivery notes	B · tank monitoring	C · flow meters	D · direct
Stena	DNV (39)	7%	22%	88%	0%

Stena: ships furthest from their peers

Each ship's CO₂ per transport work against the median ship of its type and size band. +100% means the ship emits twice as much CO₂ for the same transport work as a typical ship of its size. Ro-pax ships show passenger figures, with freight underneath.

Ship	IMO	Segment	CO₂ per transport work	Size-band median	vs median	Speed kn	CO₂	Allowances
STENA NAUTICA	8317954	Ro-pax	1,415 g CO₂/pax·nm 168 g CO₂/t·nm freight	567 253	+150% −33%	13.2	19,648 t	€1.0m
STENA HIBERNIA	9121637	Ro-ro	729 g CO₂/t·nm	297	+146%	10.8	973 t	€26k
STENA VINGA	9323699	Ro-pax	1,318 g CO₂/pax·nm 545 g CO₂/t·nm freight	567 253	+133% +115%	13.3	2,296 t	€101k
STENA TRANSPORTER	9469376	Ro-pax	1,260 g CO₂/pax·nm 114 g CO₂/t·nm freight	567 253	+123% −55%	15.8	31,104 t	€838k
STENA TRANSIT	9469388	Ro-pax	1,251 g CO₂/pax·nm 113 g CO₂/t·nm freight	567 253	+121% −55%	15.7	29,817 t	€809k
STENA ADVENTURER	9235529	Ro-pax	1,082 g CO₂/pax·nm 243 g CO₂/t·nm freight	567 253	+91% −4%	15.1	57,481 t	€1.6m
SKANE	9133915	Ro-pax	977 g CO₂/pax·nm 70.5 g CO₂/t·nm freight	567 253	+72% −72%	13.0	38,189 t	€1.9m
STENA NORDICA	9215505	Ro-pax	902 g CO₂/pax·nm 586 g CO₂/t·nm freight	567 253	+59% +132%	14.8	35,725 t	€984k
STENA SPIRIT	7907661	Ro-pax	854 g CO₂/pax·nm 123 g CO₂/t·nm freight	567 253	+51% −52%	14.9	47,494 t	€2.3m
STENA FORETELLER	9214666	Ro-ro	145 g CO₂/t·nm	100	+45%	14.7	14,283 t	€405k
STENA HOLLANDICA	9419163	Ro-pax	815 g CO₂/pax·nm 156 g CO₂/t·nm freight	567 253	+44% −38%	13.9	61,727 t	€1.7m
STENA IMPRESSION	9667461	Chemical tanker	11.7 g CO₂/t·nm	8.2	+44%	11.7	11,107 t	€325k
STENA HORIZON	9332559	Ro-pax	754 g CO₂/pax·nm 120 g CO₂/t·nm freight	567 253	+33% −52%	18.1	46,484 t	€1.8m
STENA BRITANNICA	9419175	Ro-pax	719 g CO₂/pax·nm 159 g CO₂/t·nm freight	567 253	+27% −37%	15.2	64,533 t	€1.8m
STENA SHIPPER	9503639	Ro-ro	125 g CO₂/t·nm	100	+24%	15.8	28,839 t	€789k
STENA FLAVIA	9417919	Ro-pax	703 g CO₂/pax·nm 90.5 g CO₂/t·nm freight	567 253	+24% −64%	17.5	44,377 t	€2.3m
STENA ESTRID	9807293	Ro-pax	695 g CO₂/pax·nm 235 g CO₂/t·nm freight	567 253	+23% −7%	15.5	37,469 t	€1.0m
STENA DANICA	7907245	Ro-pax	656 g CO₂/pax·nm 222 g CO₂/t·nm freight	567 253	+16% −12%	13.3	32,477 t	€1.6m
STENA JUTLANDICA	9125944	Ro-pax	649 g CO₂/pax·nm 184 g CO₂/t·nm freight	567 253	+15% −27%	13.9	29,908 t	€1.4m
STENA IMMORTAL	9685475	Chemical tanker	9.3 g CO₂/t·nm	8.2	+14%	10.5	8,159 t	€284k
STENA IMAGINATION	9685463	Chemical tanker	9.0 g CO₂/t·nm	8.2	+10%	12.3	3,837 t	€104k
STENA ESTELLE	9862994	Ro-pax	620 g CO₂/pax·nm 116 g CO₂/t·nm freight	567 253	+9% −54%	15.6	45,868 t	€2.2m
MECKLENBURG-VORPOMMERN	9131797	Ro-pax	618 g CO₂/pax·nm 109 g CO₂/t·nm freight	567 253	+9% −57%	12.5	34,458 t	€1.7m
STENA FORERUNNER	9227259	Ro-ro	168 g CO₂/t·nm	161	+5%	13.1	12,172 t	€344k
STENA IMPERIAL	9667485	Chemical tanker	8.5 g CO₂/t·nm	8.2	+5%	11.3	8,219 t	€253k
STENA EBBA	9863003	Ro-pax	580 g CO₂/pax·nm 110 g CO₂/t·nm freight	567 253	+2% −56%	15.7	44,608 t	€2.2m
STENA SCANDINAVICA	9235517	Ro-pax	506 g CO₂/pax·nm 120 g CO₂/t·nm freight	567 253	−11% −53%	15.5	49,490 t	€2.6m
STENA FORECASTER	9214678	Ro-ro	84.5 g CO₂/t·nm	100	−16%	14.1	19,673 t	€544k
STENA SCANDICA	9329849	Ro-pax	442 g CO₂/pax·nm 152 g CO₂/t·nm freight	567 253	−22% −40%	16.3	26,882 t	€1.4m
STENA GERMANICA	9145176	Ro-pax	434 g CO₂/pax·nm 107 g CO₂/t·nm freight	567 253	−23% −58%	15.6	43,756 t	€2.3m

30 of 41 reports shown. A high ratio can mean an older or faster-sailing ship, short trades with much time manoeuvring, or part-loaded voyages; it marks where to look first.

Notes

Companies are ISM companies (Document of Compliance holders) as named in THETIS, usually the ship manager.
Groups combine ISM companies matched on name and known ownership. If a company is in the wrong group, tell us at info@navalyze.com.
Efficiency figures use full-year reports with fuel; totals include part-year reports.
Euro figures use the EUA price set at the top of the page.
Verifier names vary by entity and year (for example DNV AS and DNV Hellas); they are rolled up into one brand. A verifier's figures cover the ships whose 2025 report it verified.