RELEVANT EVENTMEXICO CITY, MAY 11, 2018 - VISTA OIL & GAS S.A.B. DE C.V. ("VISTA" OR THE "COMPANY") (BMV: VISTA), THE FIRST OIL AND GAS EXPLORATION AND PRODUCTION COMPANY LISTED ON THE MEXICAN STOCK EXCHANGE, TODAY ANNOUNCED THAT ON MEETING HELD ON MAY 10TH, 2018, ITS THE BOARD OF DIRECTORS ACCEPTED, WITH EFFECTS AS OF SUCH SAME DATE, THE RESIGNATION OF ANTHONY LIM AS MEMBER OF THE BOARD OF DIRECTORS OF THE COMPANY.IN SUCH MEETING, THE BOARD OF DIRECTORS APPOINTED, BY UNANIMITY OF VOTES, MR. PIERRE JEAN SIVIGNON AS PROVISIONAL DIRECTOR IN ACCORDANCE WITH ARTICLE 24 OF THE SECURITIES MARKET LAW AND ARTICLE TWENTY SEVEN OF THE COMPANY'S BYLAWS. THIS APPOINTMENT SHALL BE SUBMITTED FOR ITS RATIFICATION BY THE SHAREHOLDERS IN THE NEXT MEETING TO BE HELD.

MR. PIERRE JEAN SIVIGNON IS AN ADVISORTO THE CHAIRMAN AND CEO OF CARREFOUR GROUP IN PARIS, WHERE HE PREVIOUSLY HELD THE POSITION OF DEPUTY CEO, CFO AND MEMBER OF THE EXECUTIVE BOARD. PRIOR EXPERIENCE INCLUDES CHIEF FINANCIAL OFFICER, EXECUTIVE VICE PRESIDENT, MEMBER OF THE BOARD OF MANAGEMENT AT ROYAL PHILIPS ELECTRONICS IN AMSTERDAM. MR. SIVIGNON ALSO HELD VARIOUS HIGH LEVEL FINANCIAL POSITIONS AT FAURECIA IN PARIS AND SCHLUMBERGER LIMITED IN NEW YORK AND PARIS. MR. SIVIGNON GRADUATED FROM FRENCH BACCALAUREATE WITH HONORS IN FRANCE AND RECEIVED AN MBA FROM ESSEC (ECOLE SUPERIEURE DES SCIENCES ECONOMIQUES ET COMMERCIALES) ALSO IN FRANCE.FOR MORE INFORMATION, PLEASE CONTACT ALEJANDRO CHERACOV, WHO IS IN CHARGE OF INVESTOR RELATIONS, AND CAN BE LOCATED IN THE OFFICES OF THE COMPANY IN JAVIER BARROS SIERRA NO. 540, TORRE 2, PISO 2, COLONIA LOMAS DE SANTA FE, C.P. 01210, LVARO OBREGN, CIUDAD DE MXICO, MXICO), OR IN THE FOLLOWING PHONE NUMBER AND EMAIL ADDRESS: 52 (55) 4163 9205 - IR@VISTAOILANDGAS.COM.

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