Claims for Unpaid Bunker Dues
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Foundations of Bunker Supply Claims in Admiralty Law
Bunker fuel is technically any type of fuel oil used aboard ships. It derives its name from the containers on ships and in ports where it is stored—called bunkers. Unpaid dues of bunker suppliers are secured by a maritime claim and/or a right to arrest the vessel in rem to which the bunkers were supplied, or her sister ship. Bunker fuel oil is employed primarily in powering ships and is also known by alternative names such as heavy oil, #6 oil, resid, Bunker C, blended fuel oil, furnace oil, and various other locally used designations. A prevalent feature of bunker supply contracts is that suppliers frequently permit all or part of the purchase price to become due sometime after delivery of the bunkers. One reason a bunker supplier may be willing to extend such credit is that the amount owed may be secured by a maritime claim and/or a right to arrest the vessel in rem that received the bunkers or her sister ship.
Owners, Charterers, and the Risk of Default
Owners trading vessels in the spot market typically purchase bunkers on their own account. In such circumstances, fulfillment of the payment obligations under the bunker supply contract remains within the owner's control. However, if the vessel is chartered out on a time or bareboat charter, bunkers will normally be purchased by the charterer. In these cases, owners have no control over the purchaser's fulfillment (or lack thereof) of payment obligations under the bunker supply contract. Should the purchaser default, this may lead to actions against the vessel by the bunker supplier. In many jurisdictions, while the bunker supplier's claim will not be secured by a maritime lien, it may qualify as a maritime claim, which may entitle the bunker supplier to arrest the vessel to which the bunkers were supplied—and in some cases, sister vessels as well.
International Conventions and Indian Practice
A considerable number of countries have ratified the 1952 Arrest Convention, which defines claims related to bunker supplies as maritime claims. Although the Brussels Convention has not been adopted by Indian legislation, the principles incorporated in the International Convention relating to the Arrest of Seagoing Ships (Brussels, 10 May 1952) are part of the common law of India and applicable for the enforcement of maritime claims against foreign ships, as held in M.V. Elisabeth v. Harwan Investment & Trading Pvt Ltd., Goa. The Supreme Court of India in the matter of M.V. Sea Success I further held that the principles underlying the 1999 Geneva Arrest Convention are applicable for ship arrest in India. Countries that have ratified the 1952 Arrest Convention, such as the Scandinavian nations, accept an arrest by a bunker supplier only if the debtor for the unpaid claim is also the owner of the vessel. In time- and bareboat-charter situations, this will not normally be the case, and the bunker supplier would not be entitled to arrest the vessel. By contrast, certain countries—such as Holland, India, and at least some court districts in France—apply a less strict interpretation of the Arrest Convention and permit arrest even in cases where the debtor is not the owner of the vessel.
The Master's Authority and Vessel Seaworthiness
Owners should remain aware that if charterers begin defaulting under the charterparty, they are also likely to default on payments to suppliers of bunkers and other services, exposing the vessel to enforcement actions. The Appeal Court of the Bombay High Court in Chemoil Adani Pvt Ltd v. M.V. Hansa Sonderburg & Ors confirmed the order of arrest of the vessel 'Hansa Sonderburg' where the bunker supply was requisitioned by the time charterer, and supply of bunker oil was made by the bunker supplier to the vessel although there was no privity of contract with the vessel owner and bunker supplier. The bunkers requisition was signed by the time charterer, delivered on the vessel, and the vessel acknowledged receipt of the supply. Section 4(1)(l) of the Admiralty Act (2017) deals with maritime claims concerning goods, materials, perishable or non-perishable provisions, bunker fuel, equipment (including containers), supplied or services rendered to the vessel for its operation, management, preservation, or maintenance, including any fee payable or leviable. Bunker supplies are unquestionably necessaries for a ship or necessaries for its voyage.
Arrest Procedure and Jurisdictional Requirements
The arrest procedure in India is not difficult to instigate and pursue. Applications for arrest of a ship can be made to the Admiralty judge of the High Court having Admiralty jurisdiction where the vessel is to be arrested. It is necessary that the ship be in Indian waters for filing of an Admiralty Suit, but it is not required that the vessel take berth—the vessel can be anywhere in Indian territorial waters. Notably, bunker oil supplied to a ship for sale to other ships could not be conceived as goods supplied for her operation; the phrase 'operation of the ship' should not be equated with the business activities of the shipowner, and the section as enacted could not cover goods loaded onto a ship only to be unloaded or disposed of soon thereafter by sale.
Critical Precedents and Interlocutory Considerations
The Division Bench of the Bombay High Court allowed the appeal filed by bunker supplier Chemoil Adani Pvt Ltd for unpaid bunker dues, upholding the order of arrest of the vessel M.V. Hansa Sonderburg. The order passed by the single judge vacating the arrest was reversed on appeal on April 27, 2010, confirming the arrest as a prima facie case was made out. The appeal court determined that the bunker supplier cannot be shut out at the prima facie stage and that the single judge vacating the arrest proceeded to analyze the case and render conclusive findings at the interim stage, which was not permissible at an interlocutory stage. In the underlying suit, bunkers were supplied at the request of the master of the vessel, and the supply was made in terms of the agreement between the bunker supplier and the time charterer. The bunker delivery note was duly acknowledged by the master, and a landing certificate and detailed invoice followed. After default, an ex parte arrest order was passed, and although the owner obtained vacatur from the single judge on grounds of no privity, the appellate court reversed the release.
Triable Issues and Maritime Lien Arguments
The bunker supplier argued that whether the terms and conditions of the contract between the supplier and time charterer bind the ship and shipowner, the legal repercussions of stipulations in the bunker delivery note, and the consequence of acknowledgment of supplies are matters not to be decided at an interlocutory stage. The supplier need not prove at that stage that supply was on the credit of the vessel; documentary evidence demonstrated that bunkers were supplied against the master’s requisition for the benefit of the vessel. Whether the master’s signature was necessary and whether the chief engineer had authority to sign are matters not to be conclusively decided at that stage. In the M.V. Eco matter, Justice Chayya ordered that the bunker supplier had made a prima facie case that it held a maritime lien over the defendant vessel. Even applying the tests under Order 38 and Order 39 of the Code of Civil Procedure, the plaintiff had a prima facie case, and the balance of convenience favored the plaintiff. The court found a reasonably arguable case on the merits and emphasized that it was not the defendant's case that bunkers were not supplied, not accepted, or not utilized. A private arrangement between owner and charterer cannot deprive a bunker supplier from taking action in rem for goods received and consumed by the vessel for its operation, which constitute a maritime claim duly acknowledged by the master or chief engineer.
Global Developments: The Sam Hawk Approach and Foreign Maritime Liens
A significant change in approach by the Western Australia Federal Court has opened possibilities for claimants—including unpaid bunker suppliers having a maritime lien under foreign law—to arrest ships in Australia. Previously unclear whether foreign maritime liens were enforceable through ship arrest when the underlying claim would not give rise to a maritime lien under Australian substantive law, the groundbreaking decision in Sam Hawk [2015] FCA 1005 allowed the vessel to be arrested for unpaid bunkers. In that case, the vessel was time-chartered, and the charterer contracted for bunkers. The supply contract was subject to Canadian law and provided that the supplier was entitled to a lien wherever it found the vessel, with US law determining the existence of a maritime lien. The vessel owners were not involved and advised they accepted no liability. The Federal Court rejected the Halycon Isle approach (which held that existence of a maritime lien was procedural and subject to domestic law of the place of arrest), finding that a lien will operate independently of the fortuitous choice of venue. Following the reasoning in John Pfeiffer Pty Ltd v Rogerson (2000) 203 CLR 503, the court found that matters affecting the existence, extent, or enforceability of rights or duties are substantive, not procedural issues. It remains to be seen whether other common law jurisdictions will adopt the Sam Hawk approach.
Strategic Implications for Bunker Suppliers and Shipowners
Why this matters: The bunker supplier’s legal position is unclear under admiralty law when supplies are made at the behest of a time charterer, while the legal position is different when supplies are requisitioned by the master of the vessel or by the vessel owner. Certain countries, including Holland, India, and some French court districts, apply a less strict interpretation of the Arrest Convention and allow arrest even where the debtor is not the owner. English law does not recognize the concept of a maritime lien for necessaries; therefore, an unpaid bunker supplier would not enjoy a maritime lien under English law. However, under US maritime law, such a bunker supplier does have a maritime lien. Shipowners must be aware that if charterers begin defaulting under the charterparty, they are also likely to default on payments to suppliers of bunkers and other services, exposing the vessel to enforcement actions. Bunker suppliers have experienced the impact of defaulting charterers, but the tide has turned in some jurisdictions.
The Master's Role as Owner's Representative and Seaworthiness Guardian
Unpaid bunker dues requisitioned by the master of a ship that is time chartered constitute a maritime claim, and the vessel can be arrested because the master is first and foremost the shipowner’s representative, possessing more or less the same authorities as the shipowner himself, though he is obliged to contact the owner if possible before making a major decision. The master bears responsibility to make the vessel ready for sailing before commencement of a voyage, including bringing sufficient supplies of food and water onboard, and ensuring seaworthiness when the voyage commences and continues during the voyage. The duty to supervise seaworthiness also means the master is obligated to refuse orders of the charterer or shipowner if their assessment of seaworthiness is incompatible with his own. If the charterer or owner does not respect this, it is possible to prosecute each as an instigator or accessory. The master also supervises loading and discharging (often carried out by the first officer) and must ensure the voyage is performed swiftly without time loss. While the charterer can greatly influence circumstances, the master remains primarily responsible for voyage performance. The master need not obey charterer orders if it is unsafe, would perpetrate a fraud, commit a tort, break a contract with a third party, or is manifestly inconsistent with the charterparty. The master has the legal right—and sometimes obligation—to refuse orders that jeopardize seaworthiness.
Regulatory Framework: ISM Code and Designated Person
Section 4 of the ISM Code on “Designated Person(s)” reads: “To ensure the safe operation of each ship and to provide a link between the company and those on board, every company, as appropriate, should designate a person or persons ashore having direct access to the highest level of management. The responsibility and authority of the designated person or persons should include monitoring the safety and pollution prevention aspects of the operation of each ship and to ensure that adequate resources and shore based support are applied, as required.” Bunker oil is ‘necessary’ goods and supplies for a ship. If it is conclusively shown that necessaries supplied or services rendered to any ship are prima facie 'necessaries' and fall within section 4(1)(l) of the Admiralty Act (2017), an admiralty action will lie. The concept of “necessaries” includes goods and materials supplied or services rendered to a ship for her operation and maintenance. The operation of the ship necessarily includes operation necessary for voyage and seaworthiness, which necessarily includes bunkers for the vessel to be seaworthy from commencement and continuing seaworthiness during the voyage.
Expanded Analysis of Bunker Supply Contracts and Credit Dynamics
A common feature of bunker supply contracts is that bunker suppliers frequently allow all or part of the purchase price to fall due some time after delivery of the bunkers. One reason a bunker supplier may be willing to grant such credit is that the amount owing may be secured by a maritime claim and/or a right to arrest the vessel in rem to which the bunkers were supplied or her sister ship. Owners trading vessels in the spot market purchase bunkers on their own account, keeping fulfillment of payment obligations within their control. However, when the vessel is chartered out on time or bareboat charter, bunkers are normally purchased by the charterer. In such cases, owners have no control over the purchaser's fulfillment of payment obligations, and if the purchaser defaults, this may lead to actions against the vessel by the bunker supplier. While in many jurisdictions the bunker supplier's claim will not be secured by a maritime lien, it may qualify as a maritime claim, which may entitle the bunker supplier to arrest the vessel to which the bunkers were supplied.
Legal Framework Under the Admiralty Act 2017 and Judicial Interpretation
The Admiralty (Jurisdiction and Settlement of Maritime Claims) Act, 2017, explicitly recognizes claims for goods, materials, provisions, bunker fuel, and equipment supplied or services rendered to the vessel for its operation, management, preservation, or maintenance as maritime claims. This provision affirms that unpaid bunker dues can be pursued through maritime claims in Indian courts, allowing for the arrest of vessels in rem, including sister ships. The procedure for arresting a vessel in India is outlined in the Admiralty Rules of the High Courts. An application for arrest can be made before the Admiralty Judge of the High Court with admiralty jurisdiction, provided that the vessel is within Indian territorial waters. It is not necessary for the vessel to berth; it can be anywhere within Indian waters for the filing of an Admiralty Suit. Under the Admiralty Act, 2017, the supply of bunker oil is classified as “necessaries” for a ship's voyage and operation. This interpretation allows bunker suppliers to arrest vessels for unpaid dues, even in situations where the supply was arranged by a charterer rather than the owner.
Practical Guidance for Bunker Suppliers and Shipowners
Indian admiralty law provides strong protection for bunker suppliers by recognizing unpaid bunker dues as maritime claims. The procedures for arresting vessels in India are streamlined and efficient, ensuring that suppliers can enforce their claims effectively. Judicial precedents have reinforced the rights of bunker suppliers, even in cases where supply was arranged by charterers. Shipowners must be vigilant when chartering their vessels, as charterers' defaults on payments for bunkers and other services can expose the vessel to enforcement actions. Even if the charterer arranged the bunker supply, the vessel may still be arrested for unpaid dues. Owners should ensure clear agreements are in place with charterers to avoid such liabilities. The question of whether a master's signature on a bunker delivery note binds the vessel is a matter that cannot be conclusively decided at an interlocutory stage. The supply of necessaries, including bunkers, constitutes a maritime claim, and acknowledgment of delivery by the master or chief engineer is sufficient to proceed with arrest. Bunker suppliers must maintain proper documentation, including bunker delivery notes acknowledged by the master or chief engineer, to support their claims in court.
Comparative Jurisdictional Analysis and Future Directions
The enforcement of maritime claims, including those related to bunker supplies, varies significantly across jurisdictions. In Australia, the Sam Hawk decision marked a significant shift, recognizing the enforceability of foreign maritime liens and allowing arrest for unpaid bunkers under foreign law. English law, in contrast, does not recognize maritime liens for necessaries, leaving unpaid bunker suppliers without that remedy, though they may have contractual remedies. The United States maintains a robust maritime lien regime for necessaries, including bunker supplies. In India, the courts have adopted a pragmatic and commercially sensitive approach, favoring the protection of suppliers who provide essential goods and services to vessels while balancing the rights of shipowners who may be distant from the charterer's default. As global shipping continues to evolve, with increasingly complex chartering arrangements and cross-border supply chains, the law surrounding unpaid bunker dues will continue to develop. Bunker suppliers are advised to secure express contractual undertakings, obtain guarantees where possible, and act promptly to arrest vessels when payments fall due. Shipowners, in turn, should monitor charterers' payment performance closely, include robust indemnity clauses in charterparties, and maintain open communication with bunker suppliers to avoid unexpected arrests. The Sixteenth Edition (2026) of this work reflects the latest developments in Indian admiralty law, ensuring that practitioners, suppliers, and owners have access to the most current and comprehensive guidance on claims for unpaid bunker dues.