OCTOBER 28, 2025

Bruchou & Funes De Rioja and Beccar Varela advise on the issuance of Class XXX Notes by Vista Energy Argentina

PRESS

PRESS RELEASE

Buenos Aires, October 28, 2025 — On October 15, 2025, Vista Energy Argentina S.A.U. successfully issued its Class XXX simple, non-convertible notes, denominated and payable in U.S. dollars in Argentina. The Class XXX Notes were issued for a nominal amount of US$73,256,123 under the company’s Global Program of up to US$3,000,000,000.

The Notes, maturing on April 15, 2027, accrue interest at a fixed nominal annual rate of 6%. The principal will be repaid in a single installment on the maturity date.

The Notes were admitted for listing on Bolsas y Mercados Argentinos S.A. and authorized for trading on A3 Mercados (formerly Mercado Abierto Electrónico S.A.). Additionally, they were rated “AAA(arg)” with a “stable outlook” by FIX and “AAA.ar” with a “stable outlook” by Moody’s, both on October 8, 2025.

For this issuance, Balanz Capital Valores S.A.U., Banco de Galicia y Buenos Aires S.A., Banco Santander Argentina S.A. and Macro Securities S.A.U. acted as placement agents.

Legal Advisors to Vista

Bruchou & Funes de Rioja: Team led by José María Bazán, with the participation of Ramón Augusto Poliche, Branko Serventich and Teo Panich.

Legal Advisors to the Placement Agents

Beccar Varela: Team led by Luciana Denegri, with the participation of María Victoria Pavani, Martina Puntillo, and María Carolina Pilchik.