Thursday, 31 May 2018 ()
By Marta Nogueira and Brad Brooks RIO DE JANEIRO/SAO PAULO (Reuters) - A 72-hour strike by Brazilian oil workers halted refineries and rigs on Wednesday, union leaders said, a new blow to President Michel Temer on the heels of a trucker protest that has strangled Latin America's largest economy for over a week. The strike by workers demanding changes at state-led oil firm Petroleo Brasileiro SA is the latest challenge for the company known as Petrobras, whose shares have tumbled nearly 30 percent in two weeks over fears that political interference would unwind recent investor-focused policies.