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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.

DELTA TANKERS LTDyour view

Side by side

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

	DELTA TANKERS LTD
Ships	29
CO₂ emitted	281 kt−4.8%
Fuel per mile	154 kg/nm
Average speed	10.7 kn
CO₂ at berth	8.2%
Ships burning LNG	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

DELTA TANKERS LTD5.7 (−28% vs median)
← bettersegment medianworse →

	Ships	Per work	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
DELTA TANKERS LTD	29	5.7	−28%	154	10.7	2,374	8.2%	–
Segment median		8.0	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
DELTA TANKERS LTD	Lloyd's Register (29)	97%	0%	0%	0%

DELTA TANKERS LTD: 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.

Ship	IMO	Segment	CO₂ per transport work	Size-band median	vs median	Speed kn	CO₂	Allowances
DELTA BLUE	9601235	Oil tanker	10.5 g CO₂/t·nm	6.3	+66%	9.8	18,055 t	€517k
DELTA KANARIS	9429015	Oil tanker	10.2 g CO₂/t·nm	6.3	+63%	10.6	9,318 t	€281k
DELTA MED	9412309	Oil tanker	6.2 g CO₂/t·nm	4.6	+36%	9.7	16,167 t	€480k
DELTA POSEIDON	9468671	Oil tanker	5.7 g CO₂/t·nm	4.6	+25%	10.7	7,890 t	€219k
DELTA SPIRIT	9419096	Oil tanker	7.8 g CO₂/t·nm	6.3	+25%	10.5	12,325 t	€346k
DELTA SKY	9410181	Oil tanker	5.6 g CO₂/t·nm	4.6	+21%	10.4	16,736 t	€485k
MELTEMI I	9298741	Oil tanker	5.4 g CO₂/t·nm	4.6	+17%	11.1	4,146 t	€118k
DELTA TOLMI	9429027	Oil tanker	7.3 g CO₂/t·nm	6.3	+16%	10.4	10,465 t	€303k
DELTA HARMONY	9408463	Oil tanker	5.3 g CO₂/t·nm	4.6	+16%	11.0	18,679 t	€595k
DELTA SUPREME	9585895	Oil tanker	7.2 g CO₂/t·nm	6.3	+15%	10.5	8,405 t	€252k
NAUTILUS I	9298765	Oil tanker	5.2 g CO₂/t·nm	4.6	+13%	11.1	5,704 t	€157k
DELTA STAR	9458016	Oil tanker	9.2 g CO₂/t·nm	8.2	+12%	10.4	10,882 t	€319k
DELTA IOS	9406685	Oil tanker	7.0 g CO₂/t·nm	6.3	+10%	10.8	6,378 t	€191k
DELTA EURYDICE	9700706	Oil tanker	6.7 g CO₂/t·nm	6.3	+6%	9.3	11,389 t	€326k
DELTA ATLANTICA	9419101	Oil tanker	8.7 g CO₂/t·nm	8.2	+6%	10.8	23,769 t	€660k
DELTA MARINER	9579573	Oil tanker	4.8 g CO₂/t·nm	4.6	+4%	11.0	18,926 t	€540k
DELTA HELLAS	9406673	Oil tanker	4.1 g CO₂/t·nm	4.6	−11%	11.1	17,223 t	€471k
BOUBOULINA	9298753	Oil tanker	5.6 g CO₂/t·nm	6.3	−12%	10.7	12,099 t	€344k
EXPLORER	9312133	Oil tanker	3.9 g CO₂/t·nm	4.6	−15%	11.6	14,016 t	€392k
DELTA OCEAN	9408475	Oil tanker	3.9 g CO₂/t·nm	4.6	−15%	11.1	6,875 t	€199k
DELTA MARIA	9700691	Oil tanker	3.8 g CO₂/t·nm	4.6	−17%	11.1	8,697 t	€255k
PASCHALIS DD	9765378	Oil tanker	4.9 g CO₂/t·nm	6.3	−21%	11.0	11,227 t	€340k
DELTA COMMANDER	9418157	Oil tanker	6.0 g CO₂/t·nm	8.2	−26%	10.8	11,207 t	€318k

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.