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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.
- DONNELLY TANKER MANAGEMENT LTDyour view
Side by side
All 2025 reports of each operator, across every ship type. Change is against 2024 where the operator reported then.
| DONNELLY TANKER MANAGEMENT LTD | |
|---|---|
| Ships | 6 |
| CO₂ emitted | 21 kt−33.7% |
| Fuel kg/nm | 117 |
| Average speed | 10.4 kn |
| CO₂ at berth | 8.3% |
| Ships burning LNG | 0 |
| Ships using alternative fuel | 0 |
| Main segment | Oil 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
- DONNELLY TANKER MANAGEMENT LTD14.0 (+76% vs median)
- ← bettersegment medianworse →
| Shipsin oil tanker | CO₂ per transport work (cargo)g/t·nm, median ship | vs oil tanker medianlower is better | Fuel kg/nmfleet avg. | Average speedknots at sea | Hours at seaper ship per year | CO₂ at berthshare | LNG / alt. fuelships | |
|---|---|---|---|---|---|---|---|---|
| DONNELLY TANKER MANAGEMENT LTD | 3 | 14.0 | +76% | 135 | 9.8 | 1,112 | 8.4% | – |
| Segment median | 8.0 | 0% |
Chemical tanker
CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 15.0
- DONNELLY TANKER MANAGEMENT LTD9.0 (−40% vs median)
- ← bettersegment medianworse →
| Shipsin chemical tanker | CO₂ per transport work (cargo)g/t·nm, median ship | vs chemical tanker medianlower is better | Fuel kg/nmfleet avg. | Average speedknots at sea | Hours at seaper ship per year | CO₂ at berthshare | LNG / alt. fuelships | |
|---|---|---|---|---|---|---|---|---|
| DONNELLY TANKER MANAGEMENT LTD | 3 | 9.0 | −40% | 92 | 11.3 | 710 | 8.1% | – |
| Segment median | 15.0 | 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 | |
|---|---|---|---|---|---|
| DONNELLY TANKER MANAGEMENT LTD | DNV (6) | 100% | 0% | 0% | 0% |
DONNELLY TANKER MANAGEMENT LTD: ships furthest from their peers
Each ship's CO₂ per transport work against the median ship of its segment, as on the ship's own page. +100% means the ship emits twice as much CO₂ for the same transport work as the median ship. The cost of the gap compares each ship with ships of its size, as everywhere on the site. Ro-pax ships show passenger figures, with freight underneath.
| Ship | IMO | Segment | CO₂ per transport work | Segment median | vs median | Average speed | CO₂ | Allowances | Cost of gap |
|---|---|---|---|---|---|---|---|---|---|
| HAFNIA ASIA | 9467809 | Oil tanker | 14.9 g CO₂/t·nm | 8.0 | +87% | 9.0 | 6,257 t | €239k | €72k |
| JANINE K | 9544607 | Oil tanker | 14.0 g CO₂/t·nm | 8.0 | +76% | 9.6 | 2,239 t | €62k | €16k |
| HAFNIA AFRICA | 9467811 | Oil tanker | 11.0 g CO₂/t·nm | 8.0 | +39% | 11.0 | 5,464 t | €173k | €44k |
| EVGENIA S | 9388015 | Chemical tanker | 15.6 g CO₂/t·nm | 15.0 | +3% | 11.2 | 2,916 t | €97k | €2k |
| HAFNIA LEO | 9476824 | Chemical tanker | 9.0 g CO₂/t·nm | 15.0 | −40% | 10.4 | 1,390 t | €46k | €4k |
| HAFNIA GUANGZHOU | 9856622 | Chemical tanker | 5.1 g CO₂/t·nm | 15.0 | −66% | 12.1 | 2,742 t | €80k | €0 |
30 of 6 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 trading under the same name, and differently named companies only where a public source shows common ownership (linked in the member list). 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.