Wall Street Journal | Petrobras Turns Into Worst-Performing Oil Stock Amid Strike Bloomberg Petroleo Brasileiro SA fell the most among the world's major crude producers after saying its oil and natural-gas output has been cut because of a strike by workers protesting job losses, spending reductions and asset sales at Brazil's state-controlled ... Oil Workers Union Strike Hurt Production, Brazil's Petrobras Says UPDATE 2-Brazil oil strike cuts output up to 13 pct - Petrobras Petrobras affected by oil strike |