Oil Exploration in the Amazon River Delta Takes Another Step: Environmental Simulations Required by Ibama Have Been Approved, and the License Could Be Issued at Any Moment.
Petrobras has successfully completed the Pre-Operational Assessment (APO), the final stage required by Ibama before the release of the license to drill the first well in the Amazon River Delta. The test, which involved hundreds of professionals and accident simulations, was deemed satisfactory by the state-owned company and paves the way for the awaited environmental authorization.
According to information published by the newspaper O Globo, the assessment was completed this Wednesday (27) and has brought optimism within Petrobras. The company believes it is close to starting a new frontier of business with the oil exploration in the Amazon River Delta, which is considered strategic for replenishing reserves in light of the expected decline of pre-salt production in the coming decade.
What Was Tested in the Amazon River Delta?
The oil exploration in the Amazon River Delta can only begin after the APO analysis, which checked whether Petrobras is prepared to operate in case of environmental emergencies. Among the exercises carried out were:
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- Oil Spill Simulation at Sea, assessing containment and recovery.
- BOP (Blowout Preventer) Testing, essential for securing the well in case of a failure.
- Use of ROVs (Remotely Operated Vehicles) for deep inspections.
- Rescue and Treatment of Marine Wildlife, such as dolphins, birds, and turtles.
More than 400 professionals participated in the operation, which involved 13 vessels, three aircraft, and two Wildlife Rehabilitation Centers, in Belém (PA) and Oiapoque (AP). These centers operate as true hospitals for marine animals.
Why Is the Region Strategic?
The oil exploration in the Amazon River Delta is one of the priorities of Magda Chambriard’s management at Petrobras. The area is located on the coast of Amapá, within the so-called Equatorial Margin, which extends to Rio Grande do Norte and is considered a new oil frontier for the country.
Experts point out that the potential of the region could be decisive for the future of the state-owned company. The pre-salt reserves, currently responsible for most of the production, are expected to decline from the middle of the next decade. Therefore, opening up the Amazon River Delta would be a strategic alternative to keep Brazil among the world’s major oil producers.
Resistance and Environmental Concerns
Despite Petrobras’s optimism, the oil exploration in the Amazon River Delta faces resistance. In May 2023, Ibama denied the drilling license, and a technical report again recommended rejection months later, citing risks to biodiversity.
NGOs and environmental experts warn of the danger of accidents in a sensitive area, close to unique and still little-studied marine ecosystems. To respond to criticisms, Petrobras installed wildlife rehabilitation centers and reinforced safety protocols, but the final decision still depends on Ibama’s analysis.
What Happens Now?
With the APO completed, Ibama will prepare the report that may either grant or deny the license to begin drilling. In previous cases, such as in the Potiguar Basin (RN), the license was issued shortly after the test approval.
The market has high expectations. If the authorization is granted, Petrobras could drill its first well in the Amazon River Delta, paving the way for a cycle of new investments and potentially strengthening the Brazilian trade balance.
The success of the APO brings Petrobras closer to a historic milestone: the oil exploration in the Amazon River Delta. The project is seen as strategic for the national economy but also sparks intense debates about environmental risks and sustainability.
What do you think? Should the oil exploration in the Amazon River Delta be approved by Ibama? Does the economic potential outweigh the environmental risks? Share your opinion in the comments!

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