Norwegian offshore supply vessel owner DOF Group has secured seven new contract extensions with Petrobras for its offshore support vessels (OSVs) in Brazil, valued over $160 million.Five of DOF's Brazilian-flagged anchor handling tug supply (AHTS) vessels, all with ROVs on board, including Skandi Fluminense, Skandi Paraty, Skandi Angra, Skandi Urca and Skandi Iguaçu, have had their current contracts with Petrobras extended until the first quarter of 2027…