By Lise Alves, Senior Contributing Reporter

SÃO PAULO, BRAZIL – This will be a decisive week for top executives at Brazil’s oil giant Petrobras, say analysts, as additional reports reveal that directors and even the company’s president, Maria das Graças Foster, have known for years that some of the company’s key directors were receiving bribes.

On Friday financial daily Valor Econômico reported that a former Petrobras manager, geologist Venina Velosa da Fonseca, had written e-mails as back as 2008 accusing the company’s Subscribe to our Premium Membership Plan. Already Subscribed? Login Here