Reuters | Shell, Exxon win blocks in Brazil's pre-salt oil auction Reuters Lucio Prevatti, representative from Shell, places an offer during a deepwater pre-salt oil auction in Rio de Janeiro, Brazil October 27, 2017. REUTERS/Pilar Olivares. Oil in the region is trapped under thousands of feet of salt beneath the ocean floor ... Delay in Brazil's pre-salt oil auction overturned Brazil Oil Auction Beats Expectations Market Chatter: Exxon Mobile, Shell Reportedly Win Oil Blocks in Brazil at Auction |