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…<p><p>https://www.marinelink.com/news/dof-bags-multiple-vessel-deals-petrobras-533693</p></p>