Brazil's Oi posts Q4 net loss of 4.421 bln reais
March 27, 2015 at 06:25 AM EDT
BRASILIA, March 27 (Reuters) - Brazilian telecom Grupo Oi SA on Friday reported a fourth-quarter net consolidated loss of 4.421 billion reais ($1.389 billion), compared from a profit of 1.183 billion reais a year earlier, according to a securities filing.
