Navios Maritime Acquisition has struck a one-year charter deal with Brazil's Petrobras that will tie up one of its eight VLCCs at a rate that confirms a dip in period fixtures of this length.

European broking sources said the New York-listed shipowner, part of Angeliki Frangou's Navios Maritime Group, has chartered the 309,000-dwt Nave Synergy (built 2010) to the government-controlled oil company at $27,200 per day.