Case: Exxon Mobil Corporation v. Corporación Cimex, S.A. (Cuba), et al., No. 24-699
Lower Court: District of Columbia
Docketed: 2024-12-31
Status: Granted
Question Presented: Whether the Helms-Burton Act abrogates foreign sovereign immunity in cases against Cuban instrumentalities, or whether parties proceeding under that Act must also satisfy an exception under the Foreign Sovereign Immunities Act.
On February 23, 2026, the Court heard oral argument in Exxon Mobil Corporation v. Corporación Cimex, S.A. (Cuba). Morgan L. Ratner argued for petitioner, and Deputy Solicitor General Curtis E. Gannon argued as amicus curiae for the United States. The government’s participation signals that the executive branch views the statutory interpretation question as having significant foreign policy consequences beyond this single dispute.
The case arises from Cuba’s confiscation of Exxon’s property. Exxon sued Cuban instrumentalities including Corporación CIMEX and Unión Cuba-Petróleo. The D.C. courts held that Helms-Burton does not independently abrogate sovereign immunity and that plaintiffs must separately satisfy an exception under the Foreign Sovereign Immunities Act (FSIA). See the full Supreme Court docket for procedural details.
The central legal question is whether Congress, in enacting Helms-Burton, implicitly displaced the FSIA’s framework for suits against foreign sovereigns. Exxon argues the statute’s text and structure reflect a congressional intent to permit suit without the additional FSIA hurdle. Respondents counter that the FSIA remains the exclusive vehicle for establishing jurisdiction over foreign states. Thirteen amicus briefs, including submissions from foreign sovereign immunity scholars and foreign relations scholars filed on January 16, 2026, reflect how contested this interpretive question is among academics. More information on the case is available at Oyez.
The Court’s resolution will affect not only Helms-Burton claimants but also the broader question of how specifically Congress must speak to override the FSIA. A ruling that Helms-Burton suffices on its own would open federal courts to a range of Cuban-property claims that have been stalled on immunity grounds. A ruling for respondents would reinforce the FSIA as the exclusive gateway, requiring plaintiffs to fit their claims within its enumerated exceptions regardless of what other statutes authorize.