AUGUST 12, 2019

Vista Oil & Gas in notes issuances worth US$100 million.

PRESS

PRESS RELEASE

Buenos Aires, August 12th, 2019. On July 31st, 2019, Vista Oil & Gas S.A.U. (the “Issuer” or “Vista”) issued Class I Notes for a nominal value of US$50 million, and on August 7th, issued Class II Notes for the same nominal value of US$50 million. Both issuances took place under the global program for short, medium and long-term notes, not convertible into shares, for a maximum circulation amount of up to US$800 million (or its equivalent in other currencies and/or value units).

The maturity date of Class I Notes will take place 24 months as from their issuance and settlement date, that is on 31 July 2021, accruing interest at an annual nominal fixed rate of 7.88%. The capital will be amortized in a single installment on the due date. On July 19th, FIX SCR S.A. (“Fix”) rated these notes A+ (arg).

The maturity date of Class II Notes will take place 36 months as from their issuance and settlement date, that is on 7 August 2022, accruing interest at an annual nominal fixed rate of 8.50%. The capital will be amortized in a single installment on the due date. On July 29th, Fix rated these notes A+ (arg).

The Notes have been listed on Bolsas y Mercados Argentinos S.A. and have been admitted to trading on Mercado Abierto Electrónico S.A.; they are eligible through Euroclear Bank S.A/N.V.

In these issuances, Allaria Ledesma & Cía S.A., Balanz Capital Valores S.A.U., Banco de Galicia y Buenos Aires S.A.U., Banco de Servicios y Transacciones S.A., Banco Itaú Argentina S.A., Banco Santander Río S.A., Banco Macro S.A., BBVA Banco Francés S.A., Itaú Valores S.A., Macro Securities S.A. and Puente Hnos. S.A. acted as placement agents (the “Placement Agents”).

Legal counsel to Vista Oil & Gas

Bruchou, Fernández Madero & Lombardi: team led by José María Bazán, assisted by Andrés Chester and Emilio Díaz Reynolds.

In-house counsel: Florencia Hardoy and Rosario Maffrand.

Legal Counsel to the Placement Agents

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