Sonangol, a company engaged in petroleum and natural gas production, completed the acquisition of a 6% stake in Galp Energia, a Portugal-based holding company engaged in the oil and gas industry, from Isabel Dos Santos for $498m. Dos Santos has been fighting a legal battle against Angola’s government since President Joao Lourenco replaced her father, Jose Eduardo dos Santos, at the helm of Africa’s second-biggest oil producer in 2017.