UPDATE 6-Petrobras raises $6.75 bln in return to global bond markets
* First test of sentiment towards Brazil since Rousseff suspension
* Petrobras is the world's most indebted oil firm
* Rousseff forced borrowing to bolster political agenda (Adds Petrobras doubles maximum debt buyback)
By Guillermo Parra-Bernal
SAO PAULO, May 17 (Reuters) - State-controlled Petróleo Brasileiro SA raised $6.75 billion on Tuesday from a sale of five- and 10-year dollar-denominated bonds, in a closely watched return to global debt markets after the suspension of Brazilian President Dilma Rousseff.
The sale is the first by a Brazilian company since June and the first to test investor sentiment toward Brazil since Rousseff was ousted last week to face an impeachment trial.
Petrobras, as the firm is known, later announced that it had doubled the maximum buyback of debt maturing in 2018 to $6 billion.
Investors have said Petrobras, which was for years Rousseff's main tool to enact policies that helped drive Brazil into a recession not seen in eight decades, could gain most from the change in Brazil's leadership.
Rousseff forced Petrobras to borrow beyond capacity to bolster her Workers Party's political agenda. The company is the world's most indebted oil firm. Continuación...