Evaluate presalt targets with greater certainty than before. On November 7, 2019, the Brazilian National Agency of Petroleum, Natural Gas, and Biofuels (ANP) is auctioning off excess reserves in four presalt fields of the Santos Basin. This surplus results from the 2010 Transfer of Rights Agreement between Petrobras and the Brazilian Government, in which Petrobras was granted the right to extract up to 5 billion bbl of oil equivalent. Due to the high volumes of oil and natural gas and high productivity, the ANP will auction off rights to the Atapu, Buzios, Itapu, and Sepia blocks, covering approximately 1,400 km2 collectively. Under a production-sharing contracting model, the winner will pay Petrobras compensation for investments already made in the area and will acquire part of the assets and production.