JUNE 23, 2021

Vista Oil & Gas issues Class IX and Class X notes.

PRESS

PRESS RELEASE

Buenos Aires, June 22nd, 2021. On June 18th, Vista Oil & Gas Argentina S.A.U. (“Vista Argentina”) issued Class IX Notes for US$38,787,069 and Class X Notes for 39,093,997 UVA (equivalent to AR$3,104,063,361.80 at the Initial UVA Value and to US$32,586,881.13 at the Initial Exchange Rate), carried out under the company’s Global Program of up to US$800 million (or its equivalent in other currencies): Class IX Notes, denominated in US Dollars, to be subscribed and payable in Argentine Pesos (dollar-linked), and Class X Notes, denominated in UVA (Unidades de Valor Adquisitivo), subscribed and payable in Argentine Pesos.

Class IX Notes will be due on June 18th, 2023, accruing interest at a fixed rate of 4% n.a., amortizing the capital in one single payment on the due date.

Class X Notes will be due on March 18th, 2025, accruing interest at a fixed rate of 4% n.a., amortizing the capital in one single payment on the due date.

Both Classes were rated “AA- (arg)” by FIX SCR S.A. on June 11th, 2021. They are listed on Bolsas y Mercados Argentinos S.A. and on Mercado Abierto Electrónico S.A.

In this issuance, Allaria Ledesma & Cia. S.A., Balanz Capital Valores S.A.U., Banco de Galicia y Buenos Aires S.A.U., Banco Santander Río S.A., Facimex Valores S.A., Macro Securities S.A., PP Inversiones S.A., Puente Hnos. S.A. and SBS Trading S.A. acted as placement agents.

Counsel to Vista Oil & Gas

Bruchou, Fernández Madero & Lombardi: team led by José María Bazán, assisted by Facundo Sainato, Ramón Augusto Poliche and Valentín Bonato.

In-house counsel: Florencia Hardoy and Rosario Maffrand.

Counsel to Placement Agents

Beccar Varela: team led by Luciana Denegri, assisted by María Victoria Pavani, María Inés Cappelletti, Joaquín Vallejos and Julián Ojeda.