(Adds that Sonangol sold Dalia cargo)
LONDON, Sept 6 (Reuters) - Nigerian Bonny Light and Qua Iboe
crude were being offered at lower premiums on Friday, while
Angolan cargoes continued to find buyers.
NIGERIA
* Bonny Light and Qua Iboe were offered at dated Brent plus
$2.75, a trader said, lower than a premium of $3.00 heard of on
Thursday.
* High volumes for October loading at the North Sea's new
Johann Sverdrup field had caused some traders to question high
asking prices for Nigerian grades.
ANGOLA
* Around 12-13 cargoes of Angolan oil remained available for
export in October, down from an estimate of 13 on Thursday.
* There was no immediate evidence of lower offers. A cargo
of Mostarda was still being indicated at dated Brent plus $1.30
and a Mondo shipment at dated Brent plus $2.45, a trader said.
TENDERS
* Indonesia's Pertamina issued a buy tender for light crude
cargoes, including West Africa, for Nov. 1-19 delivery. It
closed on Friday and remains valid until Sept. 10.
* Indonesia's Pertamina issued a second buy tender for
condensate cargoes for Dec. 1-5 delivery cargoes. It closed on
Friday and remains valid until Sept. 10.
* Both Uruguay's ANCAP and Astron Energy in South Africa
issued tenders for crude exporting in October, though details
were not immediately available.