Navalyze

Navalyze · Market view · Segment

Oil tanker ships, 2025

2,102 oil tanker ships reported to THETIS-MRV for 2025, emitting 17.2 Mt of CO₂. Efficiency is measured as g CO₂/t·nm.

The segment at a glance

Median ship
8.0
g CO₂/t·nm
Fuel per mile
129 kg
Median ship
Average speed
10.7 kn
Median ship, distance over hours at sea
Hours at sea
2,058
Median ship, EU-scope voyages (23% of the year)
CO₂ at berth
9.1%
Share emitted alongside in EU ports
Ships burning LNG
20
of 1,665 benchmarked

Operators

Who runs oil tanker ships in EU trades, and how their fleets compare. Technical shows efficiency, speed and time at sea; commercial shows the allowance bill.

#Group
1Maran4 companies, 2 in oil tanker42−16%6.71788.73,8008.0%–
2Scorpio75 companies, 65 in oil tanker65−7%7.412010.92,5798.9%–
3TMS Group (Economou)4 companies, 1 in oil tanker56−16%6.715010.82,67410.2%–
4Synergy Marine15 companies, 6 in oil tanker66+21%9.610411.22,6219.8%–
5Tsakos2 companies50−5%7.514510.33,8809.8%1
6Thenamaris3 companies, 1 in oil tanker45+1%8.01458.83,3239.9%–
7Frontline40 companies40−30%5.513810.62,9537.3%–
8Columbia Shipmanagement3 companies29−9%7.314610.02,5689.5%–
9Minerva3 companies, 1 in oil tanker43+16%9.31397.52,3477.7%–
10Zodiac2 companies, 1 in oil tanker24−16%6.715710.32,4779.5%–
11Eastern Pacific Shipping2 companies, 1 in oil tanker21−12%7.014010.43,1717.7%2
12DELTA TANKERS LTD29−28%5.715410.72,3748.2%–
13DYNACOM TANKERS MANAGEMENT LTD69−18%6.51588.51,7258.0%–
14KYKLADES MARITIME CORPORATION23−18%6.516110.82,4368.7%–
15Teekay Marine (Singapore) Pte. Ltd.34−19%6.41479.82,8287.6%–
16GENEL DENIZCILIK NAKLIYATI A.S25−15%6.816610.21,9918.5%2
17KNOT Management AS14+182%22.42497.13,2218.7%–
18Avin3 companies, 1 in oil tanker14+57%12.51689.43,89116.1%–
19MISC2 companies, 1 in oil tanker22−18%6.515210.42,0047.6%–
20Pantheon Tankers Management Ltd19−10%7.21439.82,6328.4%–
21FLEET MANAGEMENT LIMITED34+19%9.512710.11,4498.3%–
22Nereus Shipping SA13−26%5.912712.03,9587.4%–
23V.Ships11 companies, 5 in oil tanker24−15%6.814711.42,6567.7%–
24BW Group7 companies, 1 in oil tanker280%8.010310.61,6779.7%1
25Associated Maritime Company (Hong Kong) Limited16−54%3.719610.81,5484.5%–

Operators with at least 3 ships in this segment. Figures cover their ships in this segment only, so a group active in several segments (MSC runs container and cruise ships) has its full total on the market page. Groups combine ISM companies matched on name and known ownership; tell us at info@navalyze.com if one is in the wrong group. Click a column to rank by it.

Efficiency by ship size

Bigger ships move a tonne of cargo for less fuel, so ships are compared within size bands. Each row is drawn against the segment median.

0.25×0.5×segment median2×4×
  • Q1: ~11 kt27.1 g CO₂/t·nm
  • Q2: ~31 kt10.4 g CO₂/t·nm
  • Q3: ~51 kt8.21 g CO₂/t·nm
  • Q4: ~69 kt6.29 g CO₂/t·nm
  • Q5: ~105 kt4.59 g CO₂/t·nm

Q1 to Q5 split the fleet into fifths by average cargo carried, derived from the published ratios.

Who verifies the reports

Accredited verifiers check each ship's MRV report. Their share of the segment's ships and CO₂.

Share of CO₂Share of ships

How fuel is measured

Each ship's monitoring plan names one or more of the four MRV methods.

A · Bunker delivery notes
56%
Fuel bought, corrected by tank soundings
B · Bunker tank monitoring
45%
Tank readings on board
C · Flow meters
36%
Meters on the fuel lines to engines and boilers
D · Direct measurement
0%
CO₂ measured in the exhaust

Most common combinations

  • A44%
  • B + C20%
  • B19%
  • C6%
  • A + C6%
  • A + B + C5%
  • A + B2%

Share of 2,108 emission reports that name a method; a report can name several.

Notes

  • Medians and rankings use 1,665 full-year reports with fuel; part-year and zero-fuel reports count towards totals only.
  • THETIS reports time at sea on EU-scope voyages only, not time in port. CO₂ at berth is the closest measure of port activity it publishes.
  • Speed and distance are derived from the published ratios; THETIS has no distance column.