Brazil's state-run oil company Petrobras (NYSE:PBR) has signed a 16.5 billion real ($2.8 billion) deal to build and charter 12 new support vessels to supply its offshore platforms, Reuters reported on Thursday. The investment is part of the modernization drive laid out in the company's strategic plan for the 2025-2029 period. Petrobras (PBR) unveiled its 5-year plan that includes $111B in total investments through 2029, good for a 9% increase compared to the previous 2024-28 plan. Petrobras said in the plan that the company's…