Oleo e Gas Partcpacs e Recprc Jdcl : OGX releases its Sustainability Annual Report of 2016 (GRI)

OGX PETRÓLEO E GÁS S.A. CNPJ/MF: 08.926.302/0001-05 Public Company - B3: OGSA3 - OGX releases its Sustainability Annual Report of 2016 (GRI) - Rio de Janeiro, September 12th, 2017 - OGX Petróleo e Gás S.A. ("OGX" or "Company") (B3: OGSA3; OTC: OXPRY.PK), announces to its shareholders and to the market that the Company's Sustainability Annual Report of 2016, based on the Global Reporting Initiative (GRI) methodology, is available at the Company's Investor Relations website.

The disclosure of the Sustainability Report in the GRI standard reflects the Company's commitment to strengthen the transparency of its practices, informing its stakeholders about aspects of social, environmental and economic performance. The Company reaffirms its commitment with the society in pursuit for sustainable development and with the value generation to its business.

To access the Sustainability Annual Report of 2016, enter the Company's Investor Relations website in the following link: http://www.ogx.com.br/ri

Rio de Janeiro, September 12th, 2017 Paulo Narcélio

Chief Executive, Finance and Investor Relations Officer

OGX Petróleo e Gás S.A. LEGAL NOTICE

This document contains Company-related statements and information that reflect the current vision and/or expectations the Company and its management have regarding its business plan. These include, among others, all forward-looking statements that involve forecasts and projections, indicate or imply results, performance or future achievements, and may contain words such as "believe," "foresee," "expect," "consider," "is likely to result in" or other words or expressions of similar meaning. Such statements are subject to a series of expressive risks, uncertainty and premises. Please be advised that several important factors can cause the actual results to diverge materially from the plans, objectives, expectations, estimations, and intentions expressed in this document. In no event shall the Company or the members of its board, directors, assigns or employees be liable to any third party (including investors) for investment

decisions or acts or business carried out based on the information and statements that appear in this presentation, or for indirect damage, lost profit or related issues. The Company does not intend to provide to potential shareholders with a revision of the statements or an analysis of the differences between the statements and the actual results. Each investor must conduct and rely on its own evaluation, including of the associated risks, in making an investment decision.

OGX Contacts Investors:

Paulo Narcélio Victor Rosenzvaig Cinthya Coutinho [e-mail]

[phone]

Media:

Cibele Flores [e-mail]

[phone]