LUANDA, June 6 (Reuters) - Isabel dos Santos, the
billionaire daughter of President Jose Eduardo dos Santos,
pledged a root and branch overhaul of state oil firm Sonangol on
Monday to improve its efficiency and operating margins.
Minutes after being sworn in as chief executive, Isabel told
reporters she was looking to split Sonangol into three units
overseeing operations, logistics and concessions to
international oil companies.