Kazakhstan is set to mix output from the $116billion Kashagan project with Siberian oil for export via the Russian Atyrau-Samara pipeline.
The country has applied to Russian Transneft to transport oil from its Kashagan field to Samara, where the two types of oil – both of which have similar features – would be mixed.
The product would then be ready for export from the Novorossiysk Commercial Sea Port via the Black Sea.
North Caspian Operating Company (NCOC) is also planning to transport the Kashagan oil via the Caspian pipeline, later delivered to Taman and Baku ports via railway.
The field is expected to produce up to 370,000 barrels a day when in full operation.
Earlier this week NCOC announced it moved one step closer to the first oil production in the field, due next year, by introducing gas into its offshore facility.