Brazil's President Luiz Inacio Lula da Silva shows the first sample of oil extracted from the very deep Jubarte oilfield reservoir offshore the state of Espirito Santo, on September 2. Iran has formally invited Brazil to join OPEC, but the South American nation -- which recently discovered vast new offshore oil fields -- turned down the offer, Energy Minister Edson Lobao said.
(AFP/PR/File/Ricardo Stuckert)