No. 25-1383October Term 2025Before Arguments
Indian Harbor Insurance Company, et al., Petitioners v. Town of Vinton, Louisiana, et al.
from the United States Court of Appeals for the Fifth Circuit.
Case status
- Current stage
- Before Arguments
- Latest event
- Accepted by the Court
- Decision timing
- No window until argument is scheduled.
- What it's about
from the United States Court of Appeals for the Fifth Circuit.
Question presented
Whether federal common law or state law determines whether a nonsignatory to an arbitration agreement governed by the Convention on the Recognition and Enforcement of Foreign Arbitral Awards can use equitable estoppel principles to enforce the agreement?
- Case path
United States Court of Appeals for the Fifth Circuit / Accepted by the Court
- Area
Supreme Court case awaiting argument
Timing
Expected by late June 2026, if argued this term
The Court granted review but has not yet scheduled oral argument. Once argued, the median case reaches a decision in 94 days. Nearly all cases are decided by the end of the term in which they are argued.
Briefing
What it's about
This case asks whether federal common law or state law controls when a nonsignatory (someone who did not sign the contract) tries to enforce an international arbitration agreement through equitable estoppel (a rule that can stop a party from taking an inconsistent position). The justices have not scheduled oral argument yet.
Argument
No oral argument is scheduled yet. The dispute centers on whether federal or state law governs when a nonsignatory invokes equitable estoppel to enforce an arbitration agreement covered by the Convention.
Impact
The answer could affect who can force arbitration in international business disputes, including insurers, companies, and local governments. For example, a company that did not sign a contract might still try to move a dispute out of court and into arbitration.
What is at stake in Indian Harbor Insurance Company v. Town of Vinton?
It asks whether federal or state law decides when a nonsignatory can enforce an international arbitration agreement through equitable estoppel. That choice can change whether arbitration happens.
Who could be affected by the legal rule in this case?
Insurers, businesses, and local governments in international contract disputes could be affected. A nonsigner may or may not be able to force arbitration, depending on the rule.
What happens next in Indian Harbor Insurance Company v. Town of Vinton?
No argument is scheduled yet, and no decision window is available. Watch for oral argument or another scheduling move from the Court.
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jul 17, 2026
- Method
- Methodology