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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.

MARAN TANKERS MANAGEMENT INC.
Ships29
CO₂ emitted518 kt+6.6%
Fuel per mile170 kg/nm
Average speed9.7 kn
CO₂ at berth7.1%
Ships burning LNG0
Main segmentOil 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.

Oil tanker

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

  • MARAN TANKERS MANAGEMENT INC.4.9 (−39%)
  • ← betterworse →
ShipsPer workvs medianFuel kg/nmSpeed knHours at seaAt berthLNG
MARAN TANKERS MANAGEMENT INC.294.9−39%1709.73,5907.1%–
Segment median 8.00%

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
MARAN TANKERS MANAGEMENT INC.ABS (29)100%0%0%0%

MARAN TANKERS MANAGEMENT INC.: 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
MARAN LYNX9534016Oil tanker27.0 g CO₂/t·nm10.4+160%11.14,611 t€126k
MARAN POSEIDON9402926Oil tanker6.9 g CO₂/t·nm4.6+50%8.623,934 t€750k
MARAN PYTHIA9402902Oil tanker8.8 g CO₂/t·nm6.3+39%8.527,971 t€813k
MARAN ATLAS9414022Oil tanker11.4 g CO₂/t·nm8.2+39%7.523,662 t€718k
MARAN THETIS9421427Oil tanker6.1 g CO₂/t·nm4.6+33%10.715,337 t€451k
MARAN ARES9796872Oil tanker5.3 g CO₂/t·nm4.6+16%11.76,763 t€214k
MARAN PLATO9399507Oil tanker7.2 g CO₂/t·nm6.3+14%8.315,408 t€431k
MARAN PENELOPE9402914Oil tanker9.2 g CO₂/t·nm8.2+12%11.612,205 t€341k
MARAN HELEN9779381Oil tanker6.7 g CO₂/t·nm6.3+6%9.718,408 t€527k
MARAN PHOEBE9868156Oil tanker6.4 g CO₂/t·nm6.3+2%9.116,675 t€493k
MARAN ORPHEUS9868168Oil tanker6.3 g CO₂/t·nm6.30%11.315,111 t€434k
MARAN ARIADNE9770517Oil tanker4.5 g CO₂/t·nm4.6−3%12.36,613 t€189k
MARAN HERMES9761346Oil tanker4.4 g CO₂/t·nm4.6−5%9.619,176 t€628k
MARAN HERCULES9761360Oil tanker4.2 g CO₂/t·nm4.6−8%9.414,534 t€410k
MARAN ARTEMIS9753002Oil tanker4.2 g CO₂/t·nm4.6−8%10.537,953 t€1.3m
MARAN HERMIONE9779379Oil tanker5.8 g CO₂/t·nm6.3−9%10.818,195 t€515k
MARAN DANAE9930791Oil tanker4.1 g CO₂/t·nm4.6−11%9.521,382 t€606k
MARAN ARETE9776547Oil tanker4.0 g CO₂/t·nm4.6−14%9.733,904 t€1.0m
MARAN HOMER9761372Oil tanker7.0 g CO₂/t·nm8.2−14%8.418,024 t€520k
MARAN SOLON9881691Oil tanker3.9 g CO₂/t·nm4.6−15%10.513,644 t€393k
MARAN HELIOS9761358Oil tanker5.3 g CO₂/t·nm6.3−16%9.014,371 t€412k
MARIA A. ANGELICOUSSIS9930789Oil tanker3.9 g CO₂/t·nm4.6−16%10.636,823 t€1.1m
MARAN ATALANTA9810393Oil tanker3.8 g CO₂/t·nm4.6−17%10.740,505 t€1.4m
MARAN LEO9602473Oil tanker3.6 g CO₂/t·nm4.6−22%9.712,145 t€324k
MARAN APHRODITE9810381Oil tanker3.3 g CO₂/t·nm4.6−28%11.213,309 t€359k
ANTONIS I. ANGELICOUSSIS9930777Oil tanker3.2 g CO₂/t·nm4.6−29%10.08,533 t€261k
MARAN ATHENA9770505Oil tanker3.2 g CO₂/t·nm4.6−30%10.715,421 t€425k
MARAN DIONE9930806Oil tanker3.0 g CO₂/t·nm4.6−34%10.812,597 t€346k

30 of 29 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.