LONDON, June 17 (Reuters) -Indonesia's Pertamina again sought crude via a tender, while Angola sold out its July supplies and Nigerian sales picked up but at relatively lower prices.

* Indonesia's Pertamina re-issued a tender for August-arriving crude after ending its previous ones without an award, traders said.

* Angolan supplies for export in July had just about sold out, as export plans for August were expected imminently.

* Nigerian sales picked up slightly, but remained under pressure mostly from U.S. WTI flows to Europe.

* Reduced offer prices were helping speed up purchases, traders said.

* Light sweet Nigerian crude grades Bonny Light and Qua Iboe continued to be offered at or just below dated Brent plus $1.

Reporting by Noah Browning; Editing by Vijay Kishore

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