Angola’s President Jose Eduardo dos Santos has appointed his daughter Isabel dos Santos as head of the state oil company Sonangol.
Isabel dos Santos, named by Forbes magazine as Africa’s richest woman, worth an estimated $3.3bn (£2.3bn), has been appointed to take on a job after her father sacked the entire board in April.
With the appointment of his daughter, critics have accused President dos Santos, who has ruled since 1979, of increasingly being authoritarian.
Ms Dos Santos has large stakes in many of Angola’s strategic industries, including diamonds, banking, media and telecommunications, with large parts of her business empire based in Portugal.
She is said to own 7% of the Portuguese oil and gas company Galp Energia.
A statement from her office said that she wanted to “ensure transparency” in the management of Songangol, and to improve the Angolan oil sector’s ability to compete globally.
Representatives for Ms Dos Santos deny that her wealth is largely due to her father’s position as president and has been acquired through state money and public funds.
Mr Dos Santos has ruled the oil-rich nation for 36 years