Spot activity was slim on Wednesday as Nigerian programmes were slow to be released due to a local holiday.
Only the Qua Iboe programme has so far emerged with seven cargoes for January, down from eight in December. Two end-December cargoes have been deferred to early January.
Qua Iboe was last offered at around dated Brent plus $1.70 a barrel, a trader said. About 20 of Nigerian crude cargoes were still said to be available.