Facts of the Case
In 1960, Mr Nelson Bunker Hunt was granted an oil concession by the Libyan government. Lacking the resources for its development, he entered into a joint venture with BP. Under this agreement, BP undertook the exploration and development of the site and provided Hunt with “farm-in” contributions in cash and oil [252–253].
In exchange, Hunt granted BP a half share of the concession and agreed to repay 125% of BP’s contributions and his share of development costs. Crucially, this reimbursement was to be made exclusively from three-eighths of Hunt’s share of the oil produced until the debt was fully settled. Production began in 1967, and by 1971, BP had received about one-third of its reimbursement oil [253–254].
The Frustrating Event
The contract was terminated by two acts of the Libyan government:
- 1971: The government expropriated BP’s interest in the oil field.
- 1973: The government expropriated Hunt’s interest as well.
BP claimed these expropriations frustrated the contract and sought the award of a “just sum” under Section 1(3) of the Law Reform (Frustrated Contracts) Act 1943 [254–255].
Key Legal Principles and Judgment
The leading judicial exposition of the 1943 Act was provided by Robert Goff J at first instance. He identified that the fundamental principle underlying the Act is the prevention of the unjust enrichment of one party at the other’s expense.
Under Section 1(3), the court established a two-stage process for awarding recovery:
- Identification and Valuation of the Benefit: Robert Goff J ruled that “benefit” should be identified as the “end product” of the services (the enhancement in value of the concession) rather than the services themselves [269–270, 303].
- Assessment of the “Just Sum”: The court then awards a sum that is “just” in all circumstances, which cannot exceed the value of the identified benefit [266–267].
In this case, despite the expropriations, Hunt had obtained a benefit through the oil he received and his subsequent financial settlement with Libya. BP was awarded their costs and farm-in contributions, minus the value of the reimbursement oil they had already received. The Court of Appeal later noted that “what is just is what the trial judge thinks is just,” granting trial judges wide discretion.
Related Cases
- Cutter v Powell (1795): A pre-Act case illustrating the “all or nothing” common law approach; a seaman’s estate recovered nothing for his work because he died before completing the voyage [234–235].
- Appleby v Myers (1867): Cited in BP v Hunt to explain the “end product” rule; if a fire destroys a factory and the machinery being installed, the “valuable benefit” to the defendant is reduced to nil [271, 319–320].
- Chandler v Webster (1904): Established the harsh common law rule that the “loss lies where it falls,” preventing the recovery of prepayments; this was eventually overruled [232–233, 235].
- Fibrosa Spolka Akcyjna v Fairbairn Lawson Combe Barbour Ltd (1943): Overruled Chandler, allowing recovery of prepayments upon a total failure of consideration; this decision prompted the passing of the 1943 Act [164–165, 235–236, 240].
- Gamerco SA v ICM/Fair Warning (Agency) Ltd (1995): A leading application of Section 1(2) regarding the recovery of money and the court’s broad discretion to allow the retention of expenses [308–309, 314–315].
- National Carriers Ltd v Panalpina (Northern) Ltd (1981): A House of Lords case heard alongside BP v Hunt that debated the theoretical basis of frustration, though it reached no firm conclusion beyond rejecting total failure of consideration as the sole basis.
- Lobb v Vasey Housing Auxiliary (1963): Clarified that under the Act, the onus of proof lies on the party seeking to retain a prepayment to show that such retention is just [316–317].