On Friday, Swiss trading house Trafigura, the world's third largest, agreed to a similar deal by pre-paying Rosneft $1.5 billion for receiving 10 million tonnes over 5 years.
Rosneft clinched a $7 billion deal with Polish refiner PKN Orlen PKN.WA to deliver 8 million tonnes of crude oil to the Czech Republic via the Druzhba pipeline.