BG Group, PLC v. Republic of Argentina
The Court ruled that arbitrators, not judges, get to decide in the first instance whether a foreign investor complied with a treaty's requirement to try local courts before seeking international arbitration, with judges reviewing that decision only deferentially.
Because a British energy company's arbitrators had reasonably excused its failure to sue in Argentina's courts first, given Argentina's own interference with its judiciary, the Court reinstated the $185 million arbitration award the investor had won against Argentina.
“The question is whether the parties intended to give courts or arbitrators primary authority to interpret and apply a threshold provision in an arbitration contract—when the contract is silent as to the delegation of authority.”
The majority frames the central question the case turns on.
How it got here: Arbitrators awarded BG Group damages; a federal district court confirmed the award, but the D.C. Circuit vacated it, holding courts must review the local-litigation issue without deference.
The Case in Depth
What happened
BG Group, a British company, invested in an Argentine gas distribution company after Argentina promised dollar-based tariffs. When Argentina's economic crisis led it to convert tariffs to pesos, BG Group's investment lost value. BG Group sought arbitration under a UK-Argentina investment treaty without first suing in Argentina's courts for 18 months as the treaty seemed to require, arguing Argentina's own conduct had made local litigation pointless.
The question before the Court
When a treaty says a foreign investor must first sue in local courts before arbitrating, should judges or arbitrators decide whether that requirement was satisfied?
The Court's answer
Arbitrators do — courts should treat the treaty's 18-month local-litigation requirement the same way they treat similar procedural preconditions in ordinary commercial arbitration contracts, meaning arbitrators get to interpret and apply it first, and judges only review that decision deferentially rather than starting over from scratch.
Applying that deferential review here, the Court found the arbitrators had acted within their authority when they excused BG Group from suing in Argentina's courts first, because Argentina's own emergency measures had made local litigation impractical. The arbitration award in BG Group's favor was therefore reinstated.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Companies investing abroad and the governments that host them rely on treaties like this one to resolve disputes through arbitration rather than courts. This decision means that procedural preconditions to arbitration in investment treaties will usually be interpreted by the arbitrators themselves, with only light court oversight — making arbitration awards under thousands of similar treaties harder to challenge in the U.S.
What changes now
This is a final merits decision resolving the case in BG Group's favor; the $185 million arbitration award against Argentina, previously vacated by the D.C. Circuit, is reinstated. The ruling also sets a framework other courts will use for similar disputes under other investment treaties, though the Court left open how treaties that explicitly label a requirement a 'condition of consent' should be treated.
What this does not decide
The Court expressly left open how to treat treaty provisions that explicitly call a local-litigation or similar requirement a 'condition of consent' to arbitration, since this treaty contained no such label. It also did not decide whether Argentina's underlying economic-crisis measures were themselves lawful.
Concurrences and dissents
Concurrence in part — Justice Sotomayor
Justice Sotomayor agreed the local-litigation requirement is a procedural matter for arbitrators, not a condition on Argentina's consent, but she refused to join the majority's suggestion that even an explicit treaty label of 'condition of consent' would be unlikely to change that analysis. She thought that question should be left open, and would treat a treaty's express use of 'consent' language as potentially decisive in future cases.
Dissent — Justice Roberts
“It is no trifling matter for a sovereign nation to subject itself to suit by private parties; we do not presume that any country—including our own—takes that step lightly.”The dissent's core objection about the seriousness of a nation agreeing to arbitration.
Chief Justice Roberts argued the majority wrongly started from the premise that this was an ordinary contract, when it is actually a treaty between sovereigns to which no investor is a party. He viewed Article 8(2)(a) as merely a unilateral standing offer by Argentina to arbitrate, which an investor could accept only by first litigating locally; whether BG Group had accepted that offer was therefore a question of contract formation for courts to decide de novo, not a mere procedural matter for arbitrators.
How the Court got there
The legal reasoning, step by step
- The Court first asked how it would treat the treaty's local-litigation clause if the treaty were just an ordinary contract between private parties, since courts use settled presumptions to decide whether arbitrators or judges primarily interpret a given provision.
- Under those presumptions, courts decide 'gateway' disputes about whether an arbitration agreement exists or covers a dispute at all, but arbitrators decide procedural preconditions to arbitration, such as time limits, notice requirements, or waiver — because parties are presumed to want a single, forum-based decisionmaker to resolve those details.
- The Court characterized the 18-month local-litigation requirement as this second, procedural kind of provision: it governs only when arbitration may begin, not whether an obligation to arbitrate exists, since the treaty makes only the arbitrators' decision 'final and binding.'
- The Court then asked whether treating the document as a treaty between sovereign nations, rather than an ordinary contract, changed the analysis, and concluded it generally should not, because treaty interpretation likewise turns on the parties' intent and this treaty never labeled the litigation requirement a 'condition of consent' to arbitrate.
- Finding nothing in the treaty's text or structure overcoming the ordinary presumption, the Court concluded arbitrators, not courts, primarily interpret and apply the local-litigation requirement, subject only to deferential judicial review.
- Applying that deferential standard, the Court found the arbitrators' conclusions — that the requirement was not absolute and that Argentina's own interference with its courts excused compliance — fell within their lawful interpretive authority.