Santander and Goldman Sachs were the latest to upgrade their recommendations on the oil company to "Buy".
They announced the change late on Tuesday, citing an attractive valuation and limited impacts from recent changes to key company policies.
That followed similar calls earlier this month by Morgan Stanley and JPMorgan, which upgraded Petrobras to "Overweight" mentioning less disruptive policy changes than initially expected and lower risk perceptions, respectively.
Analysts now await an announcement on the firm's dividend policy by July, but they do not foresee a major shift.
"We believe the company's financial vigor and the government's fiscal needs make the case for limited changes," said Santander analysts, who raised their rating to "Outperform".
Persons:
Goldman Sachs, Morgan Stanley, Goldman, Luiz Inacio Lula da Silva's, Gabriel Araujo, Brad Haynes, Emma Rumney, Sharon Singleton
Organizations:
SAO PAULO, Petrobras, PETR4, Santander, JPMorgan, Thomson
Locations:
Brazil