ExxonMobil And Petrobras Secure Blocks In The Amazon River Mouth Basin During The 5th Cycle Of The Permanent Offer Auction. Investments Exceed R$ 400 Million In The New Exploratory Frontier.
The Amazon River Mouth Basin stood out as one of the most contested regions in the auction of the 5th Cycle of the Permanent Offering of Concessions, held on Tuesday (17), in Rio de Janeiro. ExxonMobil, in a consortium with Petrobras, secured five strategic blocks in the SFZA-AP3 sector, marking a significant advance in the new exploratory frontier of the Equatorial Margin.
Auction Attracts Industry Giants To The Amazon River Mouth
During the public session of the auction, the consortium formed by ExxonMobil (operator with 50% participation) and Petrobras (50%) won the blocks FZA-M-477, FZA-M-547, FZA-M-549, FZA-M-619, and FZA-M-621, marking the debut of the American oil company with successes in the bidding.
Still in the same sector, Chevron, in partnership with the Chinese CNPC, also secured space by acquiring the blocks FZA-M-405, FZA-M-473, and FZA-M-475.
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These acquisitions generated a total signature bonus of R$ 305.2 million for the SFZA-AP3 sector, averaging R$ 38.15 million per block.
The planned investment in exploration activities reaches R$ 439.81 million, corresponding to 1,553 work units (UTs), with an average of 194 UTs per block.
Sector SFZA-AP4 Also Moves The Auction
In the SFZA-AP4 sector, two additional blocks from the Amazon River Mouth Basin — FZA-M-1040 and FZA-M-1042 — were also secured through the consortium between Petrobras (operator) and ExxonMobil, both with 50% participation.
Each block was acquired for a bonus of R$ 5.2 million, with an estimated investment of R$ 109.8 million in exploration.
The total area secured by the consortia in the Amazon River Mouth Basin amounts to 6,111.51 km², reinforcing the strategic value of the region for the future of Brazil’s energy production.
Permanent Offer Drives Flexibility And Competitiveness
The auction of the 5th Cycle of the Permanent Offer included blocks in five sedimentary basins: Amazon River Mouth, Parecis, Potiguar, Santos, and Pelotas.
In total, 16 sectors were offered — two onshore and 14 offshore. The Permanent Offer modality allows blocks to be continuously available, enabling companies to present proposals according to their strategy and ideal investment moment.
In this edition, 12 companies participated with offer guarantees, and 31 were qualified to bid.
The flexibility of the model has been crucial in attracting investments and enhancing the competitiveness of the oil and gas sector in Brazil.

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