SAO PAULO, April 29 (Reuters) - Brazilian energy giant Petrobras (PETR4.SA: Quote, Profile, Research) (PBR.N: Quote, Profile, Research) said on Wednesday it had obtained a $2 billion credit line from the U.S. Export-Import Bank.

Petrobras said in a statement to investors that the loan would be used to source equipment from the United States required for its expansion plans.

The company plans to invest $174 billion from 2009-13 to expand oil output. (Reporting by Marcelo Teixeira; Writing by Peter Murphy)