On 29 March 2018, the consortium of Chevron with 40% working interest, Repsol with 40%, and Wintershall with 20%, was granted a preliminary award for the S-M-764 block in the offshore Santos Basin through the ANP Round 15.    For the S-M-764      block the consortium offered a bonus of USD 39.86 million and 225 work      units.Â  There were no other bids for      the block.    Â 
The consortium of Chevron with 40%, Repsol 40%, Wintershall 20%, was granted preliminary awards for the block S-M-764, C-M-821 & 823 through the ANP Round 15.