It added that a 5-year agreement assumes a prepayment of at least $1.5 billion (0.8 billion pounds) which was arranged by leading global financial institutions. Rosneft did not disclose the name of the banks.

Supplies may start in July 2014, Rosneft added. BP is a shareholder in Rosneft.

(Reporting by Olesya Astakhova; Writing by Katya Golubkova; Editing by Himani Sarkar)

Stocks treated in this article : Rosneft' NK OAO, BP plc