delivered the opinion of the Court.
This case raises the question whether admiralty jurisdiction extends to claims arising from agency contracts. In
Minturn
v.
Maynard,
I—
This case arose over an unpaid bill for fuels acquired for the vessel, Green Harbour ex William Hooper (Hooper). The Hooper is owned by respondent Central Gulf Lines, Inc. (Central Gulf) and was chartered by the Waterman Steamship Corporation (Waterman) for use in maritime commerce. Petitioner Exxon Corporation (Exxon) was Waterman’s exсlusive worldwide supplier of gas and bunker fuel oil for some 40 years.
In 1983, Waterman and Exxon negotiated a marine fuel requirements contract. Under the terms of the contract, upon request, Exxon would supply Waterman’s vessels with marine fuels when the vessels called at ports where Exxon could supply thе fuels directly. Alternatively, in ports where Exxon had to rely on local suppliers, Exxon would arrange for the local supplier to provide Waterman vessels with fuel. In such cases, Exxon would pay the local supplier for the fuel and then invoice Waterman. Thus, while Exxon’s contractual obligatiоn was to provide Waterman’s vessels with fuel when Waterman placed an order, it met that obligation sometimes in the capacity of “seller” and other times in the capacity of “agent.”
In the transaction at issue here, Exxon acted as Waterman’s agent, procuring bunker fuel for the Hooper from Arаbian Marine Operating Co. (Arabian Marine) of Jeddah, Saudi Arabia. In October 1983, Arabian Marine delivered over 4,000 tons of fuel to the Hooper in Jeddah and invoiced Exxon for the cost of the fuel. Exxon paid for the fuel and invoiced Waterman, in turn, for $763,644. Shortly thereafter, Waterman sought reorganization under Chaptеr 11 of the Bankruptcy Code; Waterman never paid the full amount *606 of the fuel bill. During the reorganization proceedings, Central Gulf agreed to assume personal liability for the unpaid bill if a court were to hold the Hooper liable in rem for that cost.
Subsequently, Exxon commenced this litigation in federal district court against Central Gulf
in personam
and against the
Hooper in rem.
Exxon claimed to have a maritime lien on the
Hooper
under the Federal Maritime Lien Act, 46 U. S. C. §971 (1982 ed.).
1
The District Court noted that “[a] prerequisite to the existence of a maritime lien based on a breach of contract is that the subject matter of the contract must fall within the admiralty jurisdiction.”
*607
The District Court denied Exxon’s motion for reconsideration. The court first rejected Exxon’s claim that in procuring fuel for Waterman it was acting as a.sellеr rather than an agent. Additionally, the District Court declined Exxon’s invitation to limit the
Minturn
rule to either general agency or preliminary service contracts.
3
Finally, the District Court determined that even if it were to limit
Minturn,
Exxon’s contract with Waterman was both a general agency contract and a preliminary sеrvices contract and thus was excluded from admiralty jurisdiction under either exception. See
The Court of Appeals for the Second Circuit summarily affirmed the judgment of the District Court “substantially for the reasons given” in the District Court’s two opinions. App. to Pet. for Cert. A2, judgt. order reported at
II
Section 1333(1) of Title 28 U. S. C. grants federal district courts jurisdiction over “[a]ny civil case of admiralty or maritime jurisdiction.” In determining the boundaries of admiralty jurisdiction, we look to the purpose of the grant. See
Insurance Co.
v.
Dunham,
The decision in Minturn has confounded many, and we think the character of that three-paragraph opinion is best appreciated when viewed in its entirety:
“The respondents were sued in admiralty, by process in personam. The libel charges that they are owners of the steamboat Gold Hunter; that they had appointed the libellant their general agent or broker; and exhibits a bill, showing a balance of accounts due libellant for money paid, laid out, and expended for the use of re *609 spondents, in paying for supplies, repairs, and advertising of the steamboat, and numerous other charges, together with commissions on the disbursements, &c.
“The court below very properly dismissed the libel, for want of jurisdiction. There is nothing in the nature of a maritime contract in the case. The libеl shows nothing but a demand for a balance of accounts between agent and principal, for which an action of assumpsit, in a common law court, is the proper remedy. That the money advanced and paid for respondents was, in whole or in part, to pay bills due by a steamboat for rеpairs or supplies, will not make the transaction maritime, or give the libellant a remedy in admiralty. Nor does the local law of California, which authorizes an attachment of vessels for supplies or repairs, extend to the balance of accounts between agent and principal, who have never dealt on the credit, pledge, or security of the vessel.
“The case is too plain for argument.”17 How. 477 .
While disagreeing over what sorts of agency contracts fall within Minium’s ambit, lower courts have uniformly agreed that Minturn states a per se rule barring at least some classes of agency contracts from admiralty. See n. 4, supra. 5
Minturn
appears to have rested on two rationales: (1) that the agent’s claim was nothing more than a “demand for a balance of accounts” which could be remedied at common law through an action of
assumpsit;
and (2) that the agent had no contractual or legal right to advance monies “on the credit, pledge, or security of the vessel.” The first ratiоnale appears to be an application of the then-accepted rule that “the
*610
admiralty has no jurisdiction at all in matters of account between part owners,”
The Steamboat Orleans
v.
Phoebus, 11
Pet. 175, 182 (1837), or in actions in
assumpsit
for the wrongful withholding of money, see
Archawski
v.
Hanioti,
Both of these rationales have since been discredited. In
Archawski, supra,
the Court held that an action cognizable as
assumpsit
would no longer be automatically excluded from admiralty. Rather, “admiralty has jurisdiction, even where thе libel reads like
indebitatus assumpsit
at common law, provided that the unjust enrichment arose as a result of the breach of a maritime contract.”
Thus, to the extent that
Mintum’s
theoretical underpinnings can be discerned, those foundations are no longer the law of this Court.
Minturifs
approach to determining admiralty jurisdiction, moreover, is inconsistent with the principle that the “nature and subject-matter” of the contract at issue should be the crucial consideration in assessing admiralty jurisdiction.
Insurance Co.
v.
Dunham, supra,
at 26. While the
Mint-urn
Court viewed it as irrelevant “[t]hat the money advanced and paid for respondents was, in whole or in part, to pay bills due by a steamboat for repairs or supplies,” the trend in modern admiralty case law, by contrast, is to focus the jurisdictional inquiry upon whether the nature of the transaction was maritime. See
e. g., Kossick
v.
United Fruit Co.,
Finally, the proposition for which
Minturn
stands —a
per se
bar of agency contracts from admiralty— ill serves the purpose of the grant of admiralty jurisdiction. As noted, the admiralty jurisdiction is designed to protect maritime commerce. See
supra,
at 608. There is nothing in the nature of an agency relationship that necessarily excludes such relationships from the realm of maritime commerce. Rubrics
*612
such as “general agent” and “special agent” reveal nothing about whether the services actually performed pursuant to a cоntract are maritime in nature. It is inappropriate, therefore, to focus on the status of a claimant to determine whether admiralty jurisdiction exists. Cf.
Sisson,
We conclude that Minturn is incompatible with current principles of admiralty jurisdiction over contracts and therefore should be overruled. We emphasize that our ruling is a narrow one. We remove only the precedent of Minturn from the body of rules that have developed over what types of сontracts are maritime. Rather than apply a rule excluding all or certain agency contracts from the realm of admiralty, lower courts should look to the subject matter of the agency contract and determine whether the services performed under the contract are maritime in nature. See generally Kossick, supra, at 735-738 (analogizing the substance of the contract at issue to established types of “maritime” obligations and finding the contract within admiralty jurisdiction).
Ill
There remains the question whether admiralty jurisdiction extends to Exxon’s claim regarding the delivery of fuel in Jeddah. We conclude that it does. Like the District Court, we believe it is clear that when Exxon directly supplies marine fuels to Waterman’s ships, the arrangement is maritime in nature. See
The judgment of the Cоurt of Appeals is reversed, and the case is remanded for further proceedings consistent with this opinion.
It is so ordered.
Notes
The relevant provision of the Federal Maritime Lien Act has been amended and recodified at 46 U. S. C. § 31342.
In the same action, Exxon also claimed a maritime lien on the
Hooper
for a separate unpaid fuel bill for approximately 42 tons of gas oil Exxon had supplied directly to the
Hooper
in New York. The District Court held that because Exxon was the “supplier” rather than an agent with respect to the New York delivery, the claim for $13,242 fell within the court’s admiralty jurisdiction. The court granted summary judgment in Exxon’s
*607
favor on this claim.
The preliminary contract rule, which excludes “preliminary services” from admiralty, was enunciated in the Second Circuit as early as 1881. See
The Thames,
Compare
E. S. Binnings, Inc.
v.
MTV Saudi Riyadh,
As early as 1870, however, this Court narrowed the reach of
Minturn
and cast doubt on its validity. See
The Kalorama,
These decisions were part of a larger trend started in the 19th century of eschewing the restrictive prohibitions on admiralty jurisdiction that prevailed in England. See
e. g.. Waring
v.
Clarke.
As noted, the District Court regarded the services performed by Exxon in the Jeddah transaction as “preliminary” and characterized the rule excluding agency contracts from admiralty as “a subset” of the preliminary contract doctrine. See supra, at 607, and n. 3. This Court has never ruled on .the validity of the preliminary contract doctrine, nor do we reach that question here. However, we emphasize that Mintu rn has been overruled and that courts should focus on the nature of the services performed by the agent in determining whether an agency contract is a maritime contract.
