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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.

Side by side

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

Uni-Tankers A/S
Ships4
CO₂ emitted19 kt+79.2%
Fuel per mile55 kg/nm
Average speed9.6 kn
CO₂ at berth8.8%
Ships burning LNG0
Main segmentChemical tanker

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.

Chemical tanker

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

  • Uni-Tankers A/S35.8 (+138%)
  • ← betterworse →
ShipsPer workvs medianFuel kg/nmSpeed knHours at seaAt berthLNG
Uni-Tankers A/S435.8+138%559.62,7958.8%–
Segment median 15.00%

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 notesB · tank monitoringC · flow metersD · direct
Uni-Tankers A/SABS (4)0%100%0%0%

Uni-Tankers A/S: 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.

ShipIMOSegmentCO₂ per transport workSize-band medianvs medianSpeed knCO₂Allowances
MONA SWAN9371804Chemical tanker45.1 g CO₂/t·nm39.2+15%10.53,822 t€133k
TASING SWAN9403891Chemical tanker37.2 g CO₂/t·nm39.2−5%9.77,133 t€358k
ERRIA SWAN9347748Chemical tanker34.4 g CO₂/t·nm39.2−12%9.8156 t€2k
JUTLANDIA SWAN9736638Chemical tanker25.8 g CO₂/t·nm39.2−34%9.27,731 t€253k

30 of 4 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.