Dommo Energia : Production numbers for December 2017

Dommo Energia S.A.

CNPJ/MF: 08.926.302/0001-05 Public Company - B3: DMMO3

- Production numbers for December 2017 -

Rio de Janeiro, January 15th, 2018 - Dommo Energia S.A. ("Dommo Energia" or "Company") (B3: DMMO3;

OTC: DMMOY) announces to the market that the oil production in December reached a total of 173,057 barrels, which reflect the production in the Tubarão Martelo Field.

The Company emphasizes that, in accordance with the material fact disclosed on January 10th, 2018, the volume from the 7-TBMT-8H well will return to compose the disclosure of the monthly production numbers as of February 2018.

Find below the monthly production of the Tubarão Martelo Field in the last three months:

Rio de Janeiro, January 15th, 2018

Eduardo Yuji Tsuji

Chief Financial Officer and Investor Relations Officer

Dommo Energia 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.

Contacts

Investors: Eduardo Tsuji Pedro Serio Victor Rosenzvaig Cinthya [e-mail][phone]

Media:

Cibele [e-mail][phone]