Angolan President Joao Lourenco dismissed Isabel dos Santos as chair of the state oil company Sonangol on Wednesday, in a dramatic move against the family of the former president.
Differentials for Nigerian Qua Iboe were under pressure after a cargo injected at the end of November for ExxonMobil was offered at dated Brent plus $1.00 a barrel.
Offers for December loading cargoes have been higher at around dated Brent plus $1.30 but any deals were thought to be done lower.
Chevron has sold its cargo of Usan while Total and Shell were still offering at around dated Brent plus 40 cents a barrel.
A handful of December-loading cargoes were left from the Angolan loading plan.
TENDERS
Nigeria's Famfa Oil has issued a sell tender for six months worth of Agbami crude loading in 2018, traders said.
A Turkish Tupras tender to buy a cargo of west African crude was awarded to Glencore, traders said, for a cargo of Nigerian crude.
India's IOC issued a fresh tender to buy West African crude, for loading from Jan. 10-20, including a range of Nigerian and Angolan grades along with those from Cameroon, Ghana, Gabon and Equatorial Guinea.
A spot tender from Indonesia's Pertamina was awarded to BP for a cargo of Agbami loading Dec. 4-5, traders said.