Bunker Arrests in Greece (2026): Practical Guide for Suppliers, Owners & Charterers

Bunker arrest Greece is one of the fastest and most effective enforcement tools available to an unpaid fuel supplier, and in 2026 it remains the pressure point where many shipping disputes are either settled or lost. This guide is a practitioner-level decision brief for bunker suppliers, shipowners, charterers, P&I clubs and port agents who need to act, or react, when a vessel calling a Greek port becomes the security for an unpaid bunker claim. Below you will find who may arrest and on what legal basis, the documents a Greek judge expects, realistic timelines in Piraeus, the security options that will release a ship, and the defences owners and charterers can deploy.

The article takes positions: it indicates when to arrest, when to post security, and when to fight. Read the comparison table and the decision framework before you instruct counsel.

Executive summary. A direct bunker supplier with original delivery documentation is usually in a strong position to secure a fast, effective arrest. Owners and charterers can also arrest, but their footing differs. Three points drive every decision:

• Who can arrest. The direct supplier with a clean paper trail; an owner with claims tied to the vessel; a charterer only where the charterparty and any assignment support standing.
• Top evidence. Bunker Delivery Note (BDN), commercial invoice, delivery receipt, Master’s protest and log entries, certified and translated.
• Primary defences. Payment, set-off, faulty delivery, mistaken vessel identity, defective chain of title, and procedural abuse of the provisional-measures process.

Who can arrest and the legal basis for a bunker arrest in Greece

The threshold question in any bunker arrest Greece scenario is standing: who holds a claim that Greek courts will recognise as a basis for provisional seizure of the vessel. Greek practice distinguishes between a purely contractual debt and a claim that carries a maritime-privilege character against the ship herself. That distinction, maritime lien/privilege versus ordinary contractual claim, affects how a judge will scrutinise your application and how exposed you are to priority competitors.

International instruments on maritime liens and the arrest of ships, developed under the auspices of bodies such as the International Maritime Organization, inform the conceptual background, but the operative rules are the Greek Code of Civil Procedure (which governs provisional seizure, asfalistika metra) and the Greek Code of Private Maritime Law, applied in the Piraeus courts.

Bunker supplier claims: contractual claim versus maritime privilege

A bunker supplier’s claim begins as a contractual debt for fuel delivered and unpaid. The commercial question is whether that debt also supports provisional seizure of the vessel as security for the claim. In Greek practice, a supplier who delivered bunkers for the vessel’s operation and holds a signed BDN, invoice and delivery receipt can ordinarily seek conservatory arrest (provisional seizure) of the ship as security. The stronger and cleaner the documentary chain, particularly a BDN signed on board and a Master’s protest where delivery was disputed, the more readily a Piraeus judge will grant an urgent order. Where the supply was arranged through intermediaries, the basis for proceeding directly against the vessel can weaken and must be proved carefully.

Whether a bunker claim qualifies as a privileged maritime claim is a question of characterisation under Greek maritime law and should be assessed with Piraeus counsel.

Shipowner and charterer arrest rights

Owners can arrest where they hold claims tied to the vessel, and they often enjoy stronger leverage because they control title documentation. Charterers may arrest, but their standing depends on the charterparty terms and any assignment of receivables. A charterer-brought arrest is typically weaker on maritime-privilege grounds and attracts closer judicial scrutiny of standing before seizure is ordered.

Third parties: sub-suppliers, salvors and mixed claims

Mixed and layered claims are common in bunker disputes. A physical sub-supplier who delivered the fuel but contracted only with a trader, not the owner, faces a harder task establishing a direct claim against the vessel, because the contractual nexus runs to the trader. Salvors and other maritime claimants may compete for the same res, and where several claimants target one vessel, the order of priority (addressed below) becomes decisive. Sub-suppliers should document the physical supply meticulously and preserve any assignment instrument that links them to the party with recognised standing against the ship.

Step-by-step procedure to obtain a bunker arrest in Greece

The arrest of a vessel in Greece is a provisional measure (asfalistiko metro): the claimant seeks urgent judicial security pending final determination of the debt. The procedure rewards preparation. A supplier who arrives at court with a complete, translated, certified bundle and a clear statement of urgency will usually secure an order quickly; a supplier who improvises will not. The steps below reflect standard Piraeus practice, where the majority of Greek bunker arrests are heard.

Jurisdiction and the competent court (Piraeus)

Piraeus is the operational and judicial centre of Greek shipping, and its courts hear the bulk of maritime arrest applications. Jurisdiction for a provisional arrest generally follows the location of the vessel: if the ship is berthed, bunkering or at anchor within the relevant port limits, the local first-instance court (in practice frequently Piraeus) is competent to order seizure. Co-ordination with the port authority and the Hellenic Coast Guard / harbour authority is essential, because the operational act of preventing departure is executed through the port and harbour authorities once the court order issues. Confirm the vessel’s precise location and expected sailing time before filing; a supplier who files after the ship has sailed has lost the res.

Filing the application and provisional orders

Greek procedure permits urgent provisional measures. In appropriate cases, pending the hearing of the application for provisional seizure, the court may issue a temporary order (prosorini diatagi) where delay would defeat the claim, for example, where the vessel is due to sail imminently. The application sets out the claim, the legal basis for seizure, the evidence of debt, and the grounds of urgency. The judge assesses whether there is a plausible claim and a genuine risk that security will be lost absent immediate seizure. A temporary order is provisional and is followed by the hearing of the main application, at which the owner can contest the seizure.

Because the temporary-order route is powerful, judges scrutinise urgency carefully, and an application that overstates urgency invites a counter-attack. Draft the urgency plea honestly and support it with the vessel’s sailing schedule.

Practical timeline from filing to hearing and enforcement

In an urgent Piraeus bunker arrest, a temporary order can often be obtained within hours to a day where the vessel is about to sail and the documentation is complete. Enforcement, the physical detention, follows through the port and harbour authorities. A hearing of the main application to confirm or lift the measure typically follows within days to a few weeks, depending on the court’s calendar and whether the owner moves urgently for release. The practical enforcement checklist is: confirm vessel location, file with the full bundle, obtain the order, serve it on the port and harbour authorities, and notify the Master and agents.

Costs, fees and estimated timeline to release

Costs comprise court fees, legal fees and any security the claimant may be required to provide. The timeline to release is driven almost entirely by security: once the owner posts an acceptable bank guarantee, cash deposit or P&I undertaking approved by the court or accepted by the claimant, the vessel is released, frequently within a day or two of the security being agreed and lodged. Where security is contested, release can take longer.

Evidence and documents required: the court checklist

The single most decisive factor in a bunker arrest Greece application is documentary quality. Greek judges in provisional proceedings make a rapid assessment of the plausibility of the claim, and a complete, internally consistent bundle carries the day. Assemble the documents below before approaching the court, not after.

Core documentary bundle for a supplier

• Bunker Delivery Note (BDN). The signed BDN is the central exhibit evidencing the physical supply, quantity and vessel.
• Commercial invoice. Showing the agreed price, terms and the outstanding balance.
• Delivery receipt / measurement records. Supporting quantity and delivery.
• Bunker supply contract or order confirmation. Establishing the contractual terms and the contracting parties.
• Master’s protest and log entries. Particularly where quality, quantity or delivery was disputed on board.
• Fuel specification / compliance documentation. Where relevant to a fuel quality or compliance dispute.

These exhibits together establish both the debt and its connection to the specific vessel, the two matters a judge must be satisfied upon before ordering seizure.

Authentication and translation requirements

Documents submitted to Greek courts must generally be produced in Greek. Foreign-language exhibits, contracts, invoices, BDNs, require official translations, and originals or certified copies are expected. Where documents are executed abroad, notarisation or an apostille may be required depending on origin and the applicable conventions. Prepare translations in advance; a missing official translation is a common and avoidable cause of delay.

Proving the claimant’s identity and the chain of assignment

Where receivables have been sold or assigned, a frequent feature of bunker trading chains, the claimant must prove its title to sue. Produce the assignment instrument and any notice of assignment. Judges scrutinise standing closely where the party before the court is not the original named supplier, and a gap in the chain of title is a ready-made defence for the owner.

Timing of detention, security options and release mechanics

Once a vessel is under arrest, the commercial clock runs hard against both sides: the owner bears the cost of a detained ship and disrupted schedule, while the supplier bears the risk that the vessel’s value is eroded by competing claims or deterioration. The mechanics of detention and release therefore drive settlement.

Typical detention periods and extension

Initial detention runs from the moment the order is enforced through the port and harbour authorities until the hearing confirms or lifts the measure, a period measured in days to a few weeks. Detention can continue until adequate security is posted or, failing security, until the matter is resolved. In practice most bunker arrests resolve well before judgment because the owner moves quickly to release the vessel by providing security, and the supplier accepts it in exchange for releasing the ship.

Acceptable security: cash, bank guarantees, P&I undertakings and escrow

Greek courts and parties in Piraeus commonly accept the following to secure release:

• Bank guarantee. A first-demand or court-approved bank guarantee from a reputable bank is a standard instrument.
• Cash deposit. Lodged with the court-designated authority (e.g. the Deposits and Loans Fund) or into an agreed account.
• P&I club undertaking (letter of undertaking). Where the club is acceptable to the claimant, a club LOU is frequently used and avoids tying up cash.
• Escrow arrangement. Funds held by an agreed escrow agent on defined release conditions.

Structuring conditional release undertakings

The practical negotiation turns on amount, wording and jurisdiction. The claimant will press for security covering principal, interest and costs; the owner will resist an inflated figure. Key drafting points are the quantum, the trigger for payment, the governing law and forum of the security instrument, and the definition of the underlying claim it secures. A supplier should seek wording that expressly covers interest and reasonable legal costs; an owner should ensure the instrument is discharged automatically once the underlying claim is finally resolved, to avoid residual exposure.

Defences and how owners or charterers challenge a bunker arrest in Greece

An owner facing a bunker arrest Greece order has both procedural and substantive routes to challenge the seizure, and the right strategy is usually to combine an urgent release (by posting security under protest) with a substantive attack on the claim. Speed matters: the longer the vessel is detained, the greater the commercial damage, so counsel should move for release and challenge in parallel.

Procedural defences

Procedural attacks target the seizure order itself rather than the underlying debt:

• Jurisdiction. Challenge the competence of the court or the applicability of Greek seizure jurisdiction.
• Lack of urgency / abuse of the temporary-order process. Where the claimant obtained a temporary order by overstating urgency, the owner can seek to set it aside.
• Misjoinder or defective party. Where the claimant lacks standing or has mis-identified the respondent.
• Procedural defects. In service, documentation or the form of the application.

Substantive defences

Substantive defences attack the claim itself and, if successful, remove the basis for detention:

• Payment. Evidence the invoice has been paid, in whole or in part, defeats or reduces the claim.
• Set-off. Counterclaims, for example, for off-spec fuel causing machinery damage, may be set off against the debt.
• Faulty or short delivery. Disputes over quantity or quality, supported by the Master’s protest and log, undermine the claim.
• Chain of title / assignment failure. Where an assignee cannot prove good title to the receivable.
• Mistaken vessel identity. Where the bunkers were supplied to a different ship.
• Limitation and contractual defences. Time-bar and contractual terms limiting liability.

Tactical responses: counter-security, wrongful arrest and expedited relief

An owner who believes the arrest is unjustified can ask the court to make the measure conditional on the claimant providing counter-security, and may pursue a claim for damages arising from a wrongful or abusive arrest. Greek law allows recovery in such cases, but the threshold is demanding: the owner must generally establish that the arrest was wrongful or abusive within the meaning of Greek law, and losses must be proved. Expedited relief to lift the order is the faster commercial remedy, with the damages claim pursued separately.

Model steps for emergency release, checklist for counsel

• Instruct counsel and the P&I club immediately; confirm the order and its scope.
• Prepare a draft bank guarantee or club LOU with a negotiated quantum under protest.
• File an urgent application to lift or vary the order, pleading procedural and substantive grounds.
• Serve on the claimant and notify the port and harbour authorities on release.
• Preserve evidence (payment proof, fuel samples, logs) for the substantive challenge and any wrongful arrest claim.

Priority of claims in admiralty: bunkers versus mortgages versus crew

Securing an arrest is only half the battle; recovery depends on where a bunker claim ranks against competing maritime claims if the vessel is ultimately sold. This is decisive for any supplier assessing whether an arrest will actually yield payment.

Order of priority under Greek practice

Greek maritime law sets out a hierarchy in which certain privileged maritime claims, notably crew wages and certain liens, and registered ship mortgages command strong positions. Crew claims may rank ahead of a bunker supplier’s claim in appropriate circumstances, and a registered mortgage can outrank an ordinary bunker debt. A bunker claim that qualifies as a privileged maritime claim stands higher than an unsecured contractual debt, but its position relative to mortgages and crew depends on characterisation and timing. Academic commentary from institutions such as the National and Kapodistrian University of Athens Law Faculty and the case law of the Hellenic Supreme Court (Areios Pagos) are the reference points for how Greek courts characterise and rank these claims.

Practical impact on arrest strategy

The lesson for suppliers is to assess recoverability before arresting. If a vessel is heavily mortgaged or carries substantial unpaid crew wages, a forced sale may leave little for the bunker claimant after superior claims are satisfied. In those cases, the arrest’s value lies in leverage to extract security or settlement rather than in a judicial sale. Where mortgagees are likely to object, take Piraeus counsel before filing.

Bunker arrest Greece: comparison table and decision framework

The table below compares the three main arrest routes dimension by dimension so you can match the facts of your case to the strongest enforcement path.

Decision framework for a bunker arrest Greece strategy

• Choose supplier arrest when you are the direct supplier, hold original BDNs and invoices, the debt is overdue, and the vessel is calling a Greek port, the arrest is typically fast and effective.
• Choose owner arrest when the owner faces liabilities tied to the vessel and wants leverage over multiple claimants; useful where the claim arises from the ship’s own operation.
• Choose charterer arrest when the claim arises from a charterparty breach and the footing against the vessel is weak; arrest only where there is clear contractual assignment or an urgent need to preserve assets.
• Where priority risk exists (mortgage or crew claims), prioritise obtaining security over forcing a sale, and consult Piraeus counsel before arresting.

Three tactical tips interpret the table. First, documentation beats argument: the party with the cleanest BDN-to-invoice chain is best placed at the provisional hearing. Second, treat the arrest as leverage for security, not as a path to judicial sale, whenever superior claims crowd the vessel. Third, move on the vessel’s location, the arrest window closes the moment the ship sails, so verify berth and sailing time before filing.

Practical checklists, sample wording and next steps

Operational teams need a drill, not a treatise. The checklists below translate the analysis into immediate action for the two sides of a bunker arrest Greece dispute.

Supplier: what to do in the first 24 to 72 hours

• Confirm the vessel’s location, berth and expected sailing time at a Greek port.
• Assemble the documentary bundle: BDN, invoice, delivery receipt, contract, Master’s protest, logs.
• Commission official Greek translations of all foreign-language exhibits.
• Verify your title to sue and produce any assignment instrument.
• Instruct Piraeus counsel to file an urgent application and, if the vessel is about to sail, seek a temporary order.
• On grant, serve the order on the port and harbour authorities and notify agents.

Owner’s emergency playbook

• Engage counsel and the P&I club immediately on notice of arrest.
• Negotiate quantum and prepare a bank guarantee or club LOU under protest.
• File to lift or vary the order on procedural and substantive grounds in parallel.
• Preserve payment proof, fuel samples and logs for the substantive defence and any wrongful arrest claim.

Templates and supporting resources

Supporting resources include a one-page immediate checklist, sample bank guarantee wording and a model emergency release application. For broader context, see our guidance on drafting bunker supply contracts, priority of maritime claims in Greece, challenging vessel arrests, and the Piraeus arrest checklist. For instruction, consult our Shipping & Maritime Arbitration lawyers (Greece) and find a shipping litigation specialist through the same directory.

Conclusion

A bunker arrest Greece strategy succeeds or fails on preparation, speed and the quality of the paper trail. For suppliers, the message is clear: arrest early, arrest with complete and translated documentation, and treat the seizure as leverage for security where competing mortgages or crew claims threaten recovery. For owners and charterers, the answer is equally direct: move in parallel to release the vessel under protest and to attack the claim on procedural and substantive grounds, and seek counter-security where the arrest looks unjustified.

Whether you are enforcing or resisting a bunker arrest in Greece, take Piraeus counsel before the vessel sails, the arrest window can be measured in hours, and the decision you make in that window often governs the outcome.

Sources

1. International Maritime Organization (IMO)
2. European Maritime Safety Agency (EMSA)
3. Areios Pagos (Hellenic Supreme Court)
4. National & Kapodistrian University of Athens, Law Faculty