Renewable energy projects could account for over one-fifth of total capital allocation for some oil companies post-2030, according to a Wood Mackenzie report.
The environment manager at the national oil company, Cristián Núñez, said all projects are now taking water efficiency into consideration.
The construction firm has been cleared to bid for new contracts with Brazil's state-run oil company after signing an anti-corruption accord..
Government agency begins public consultation.
Hydrocarbons were identified in the Potiguar and Recôncavo basins in Brazil's northeast.