AP NEWS

November 2018 Operational Data

December 6, 2018

RIO DE JANEIRO--(BUSINESS WIRE)--Dec 6, 2018--Petro Rio S.A. (“Company” or “PetroRio”) (B3: PRIO3), in compliance with best practices in corporate governance and transparency, informs its preliminary and non-audited Operational Data.

1- In January, Polvo Field performed scheduled maintenance procedures which resulted in a temporary shutdown which lasted 10 days.

2- Refers to PetroRio’s 10% W.I. in Manati Field.

3- On November 19, one well producing 800 bbl/d was temporarily shutdown, resuming operation on December 6.

About PetroRio

PetroRio is one of the largest independent companies in the oil and gas production in Brazil. The Company´s corporate culture seeks to increase production through the acquisition of new production assets, the re-exploration of assets, increased operational efficiency and reduction of production costs and corporate expenses. PetroRio’s main objective is to create value for its shareholders with growing financial discipline and preserving its liquidity, with full respect for safety and the environment. For further information, please visit the Company’s website: www.petroriosa.com.br.

View source version on businesswire.com:https://www.businesswire.com/news/home/20181206005845/en/

CONTACT: Investor Relations

ri.petroriosa.com.br

ri@petroriosa.com.br

+55 21 3721-3810

KEYWORD: BRAZIL SOUTH AMERICA

INDUSTRY KEYWORD: ENERGY OIL/GAS OTHER ENERGY

SOURCE: Petro Rio S.A. Petro Rio S.A.

Copyright Business Wire 2018.

PUB: 12/06/2018 02:05 PM/DISC: 12/06/2018 02:05 PM

http://www.businesswire.com/news/home/20181206005845/en

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