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Navalyze · Market view · Segment

Oil tanker ships, 2022

2,038 oil tanker ships reported to THETIS-MRV for 2022, emitting 17.0 Mt of CO₂. Efficiency is measured as g CO₂/t·nm.

The segment at a glance

Median ship
8.5
g CO₂/t·nm
Fuel per mile
131 kg
Median ship
Average speed
10.9 kn
Median ship, distance over hours at sea
Hours at sea
1,740
Median ship, EU-scope voyages (20% of the year)
CO₂ at berth
10.5%
Share emitted alongside in EU ports
Ships burning LNG
2
of 1,961 benchmarked

Operators

The 2022 public files do not name the companies managing each ship, so operator rankings start in 2024.

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: ~14 kt24.4 g CO₂/t·nm
  • Q2: ~30 kt10.8 g CO₂/t·nm
  • Q3: ~49 kt8.86 g CO₂/t·nm
  • Q4: ~69 kt6.58 g CO₂/t·nm
  • Q5: ~104 kt4.94 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
  • DNV32.7% / 32.4%
  • ABS20.8% / 21.3%
  • Lloyd's Register15.3% / 13.5%
  • RINA10.3% / 9.5%
  • EMICERT5.2% / 4.7%
  • Verifavia3.5% / 3.2%
  • ClassNK3.4% / 4.3%
  • Bureau Veritas2.4% / 3.0%
  • Korean Register2.4% / 2.1%
  • Indian Register of Shipping1.6% / 2.4%
  • 6 others2.3% / 3.5%

How fuel is measured

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

A · Bunker delivery notes
44%
Fuel bought, corrected by tank soundings
B · Bunker tank monitoring
43%
Tank readings on board
C · Flow meters
33%
Meters on the fuel lines to engines and boilers
D · Direct measurement
0%
CO₂ measured in the exhaust

Most common combinations

  • A40%
  • B25%
  • B + C16%
  • C15%
  • A + C2%
  • A + B2%
  • A + B + C1%

Share of 1,938 emission reports that name a method; a report can name several.

Notes

  • Medians and rankings use 1,961 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.