Petrobras detects oil off Amapa coast as Lula visits Amazon basin drilling vessel

Offshore discovery and presidential visit

Petrobras confirmed the detection of hydrocarbons in the Foz do Amazonas basin on 17 August 2026. The discovery occurred at the Morpho exploratory well in block FZA-M-59, situated roughly 175 to 180 kilometers off the coastline of Amapa state at a water depth of 2,886 meters. President Luiz Inacio Lula da Silva flew to the offshore drilling vessel before appearing at an official press conference in the coastal municipality of Oiapoque. Appearing alongside Petrobras Chief Executive Magda Chambriard and Senate President Davi Alcolumbre, Lula wore an orange petroleum worker uniform and displayed a glass vial containing crude extracted from the offshore well. The president stated that northern offshore resources would provide revenue to support economic growth and fund clean technology programs.

When I say 'passport,' I'm not denying my commitment to the fight for a day when we no longer need fossil fuels, because Brazil will continue to be the king of biofuel innovation and will remain a major player in renewable energy.

Exploration timeline and technical evaluation

Offshore drilling at block FZA-M-59 commenced in October 2025 following a five-year environmental licensing process. Hydrocarbons were detected through electrical logging profiles and rock samples extracted during deepwater drilling roughly 350 kilometers from the Amazon river basin. Petrobras Chief Executive Magda Chambriard stated that technical teams require an additional 15 to 20 days of drilling to finish the well and calculate the precise volume of the deposit. Further laboratory analysis will assess the quality of the crude and determine whether the deposit allows commercial extraction. The find is situated within the Equatorial Margin, a coastal geological region extending from Amapa to Rio Grande do Norte across five offshore basins: Foz do Amazonas, Para-Maranhao, Barreirinhas, Ceara, and Potiguar. Preliminary geological estimates indicate the entire Equatorial Margin could hold up to 10 billion barrels of oil, with an estimated valuation of 3.8 trillion reais ($720 billion).

Strategic production targets and investment plans

The exploration campaign forms part of the Petrobras 2026–2030 business plan, which commits $2.5 billion (13 billion reais) to exploratory drilling across northern coastal basins. Petrobras plans to drill 15 wells across the Equatorial Margin, including three additional wells in the Morpho sector and five wells in adjacent concessions. Brazil currently ranks as the seventh-largest oil producer in the world, with government planners targeting fifth position globally. Domestic production remains heavily dependent on pre-salt deposits discovered in 2006 off the coast of Sao Paulo, which generate 80% of national crude output. State planners and Petrobras officials aim to develop northern offshore reserves to offset future declines in pre-salt basins, drawing inspiration from offshore developments in neighbouring Guyana.

Environmental disputes and regulatory friction

Exploration in the Foz do Amazonas basin has generated friction between the Ministry of Mines and Energy and the Ministry of the Environment and Climate Change. Environmental networks and Indigenous organisations filed lawsuits against the Brazilian government and Petrobras to halt maritime exploration, citing risks to mangrove systems and marine biodiversity. Suely Araujo, coordinator of the Observatorio do Clima NGO network, stated that regulatory agencies failed to consult traditional communities and made calculation errors regarding oil spill containment. Petrobras stated that the company has never recorded a spill during offshore exploration and presented emergency subsea equipment designed to seal damaged wells. With Amapa holding 87% protected reserves and 90% intact forest cover, environmental agencies continue to review operational safety protocols as drilling advances.