brasilia brazil federal audit court wednesday order freeze former president dilma rousseff assets well jos rgio gabrielli ex-head state-run oil company petrobras 580 million loss 2006 purchase texas refinery order also cover former finance minister antonio palocci three members board directors petroleo brasileiro sa petrobras formally know approve controversial purchase court know tcu say detect irregularities purchase refinery pasadena texas move consider make business sense rousseff say statement evidence crime commit petrobras board members approve deal petrobras pay 360 million half pasadena refine 2006 eight time previous owner astra oil unit belgian-controlled astra transcor energy pay 112,000-barrel-a-day refinery year early 2012 petrobras sink 1.18 billion include cost buy astra remain half legal dispute firm rousseff impeach last year break budget rule chief staff president luiz inacio lula da silva time refinery purchase chair petrobras board directors succeed lula 2011. federal prosecutors investigate overprice petrobras contract country large ever corruption scandal center oil company say 2015 uncover evidence 15 million bribe pay part initial purchase 50 percent refinery say petrobras overpay facility allege terrible condition rousseff say purchase decide base incorrect financial legal information provide director since convict corruption add tcu previous rule exempt board members responsibility losses incur tcu say freeze would last one year cover assets could guarantee return public coffers losses run petrobras buy refinery clear 580 million could recover rousseff assets declare 2014 re-election include three apartments two land lot house southern city porto alegre plus cash save total 1.75 million reais 551,754 brazil court freeze ex-leader rousseff 's assets 2006 refinery deal