By Brazil Stock Guide – Petrobras (B3: PETR4; NYSE: PBR) said it has identified high-quality oil in the post-salt layer of the Campos Basin, following the conclusion of drilling at an exploratory well in the Sudoeste de Tartaruga Verde block. The discovery adds momentum to the company’s 2025 exploration program and underscores the basin’s continued role alongside the pre-salt as a core production hub.
The 4-BRSA-1403D-RJS well, located 108 kilometers off the coast of Campos dos Goytacazes in Rio de Janeiro state and drilled in 734 meters of water, has already been completed. Oil was confirmed through log data, gas shows and fluid sampling. The samples will now undergo laboratory analysis to characterize the reservoir and determine the next steps for assessing the area’s commercial potential.
The Sudoeste de Tartaruga Verde block was awarded in 2018 during Brazil’s 5th Production Sharing Round and is managed by state-run PPSA. Petrobras is the operator with 100% participation.
The discovery comes as Petrobras intensifies its exploration and revitalization efforts in mature areas of the Campos Basin, seeking incremental volumes that complement its long-cycle pre-salt projects. Results from the laboratory analyses will guide the company’s appraisal program and indicate whether the block can advance to future development stages.
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