Full list of bidders includes 17 companies fighting for offshore blocks and four for onshore tracts
Brazil's Minister of Mines and Energy Fernando Coelho Filho, gives his thumb up after the National Petroleum Agency (ANP) oil fields auction, at a hotel in Rio de Janeiro, Brazil on September 27, 2017. Brazil holds a major oil field auction in a test of President Michel Temer's policy of loosening regulations and luring foreign investors to bring billions of dollars into the moribund economy. / AFP PHOTO / Mauro PIMENTEL
