Case Details

Enwell Energy plc v. Ukraine (ICSID Case No. ARB/25/41)

Subject of Dispute:

Oil and gas enterprise
Economic Sector:

Oil, Gas & Mining
Instrument(s) Invoked:

BIT United Kingdom of Great Britain and Northern Ireland - Ukraine 1993
Applicable Rules:

ICSID Convention - Arbitration Rules

President:

Lucinda A. LOW (U.S.) - Appointed by the Parties
Arbitrators:

Stephan SCHILL (German) - Appointed by the Claimant(s)
Jorge E. VIÑUALES (Argentine, Swiss) - Appointed by the Respondent(s)

Claimant(s):

Three Crowns, Paris, France, London, U.K. and Washington, D.C., U.S.A.
Iryna Nazarova, Vienna, Austria
Respondent(s):

Ministry of Justice, Kyiv, Ukraine
Clifford Chance, Frankfurt, Germany, London, U.K., and Sydney, Australia
Status of Proceeding:

Pending
Latest Development:

March 12, 2026 -
The Tribunal is constituted in accordance with Article 37(2)(a) of the ICSID Convention. Its members are: Lucinda Low (U.S.), President, appointed by agreement of the parties; Stephan Schill (German), appointed by the Claimant; and Jorge E. Viñuales (Swiss/Argentine), appointed by the Respondent.

No References Available.

Date	Development
August 22, 2025	The Acting Secretary-General registers a request for the institution of arbitration proceedings.
October 14, 2025	Following appointment by the Claimant, Stephan Schill (German) accepts his appointment as arbitrator.
October 21, 2025	The Claimant files a request for provisional measures.
November 20, 2025	Following appointment by the Respondent, Jorge E. Viñuales (Argentine/Swiss) accepts his appointment as arbitrator.
December 19, 2025	The Respondent files observations on the Claimant’s request for provisional measures.
January 21, 2026	The Claimant files a response to the Respondent’s observations of December 19, 2026.
February 18, 2026	The Respondent files further observations on the Claimant’s response of January 21, 2026.
March 11, 2026	Following appointment by agreement of the parties, Lucinda Low (U.S.) accepts her appointment as presiding arbitrator.
March 12, 2026	The Tribunal is constituted in accordance with Article 37(2)(a) of the ICSID Convention. Its members are: Lucinda Low (U.S.), President, appointed by agreement of the parties; Stephan Schill (German), appointed by the Claimant; and Jorge E. Viñuales (Swiss/Argentine), appointed by the Respondent.