More than ten new oil deposits are discovered in Krasnoyarsk region, one of them of major significance.
Leading oil producer Rosneft burns spilled oil to 'minimise ecological damage'.
Putin prepares to head to New Delhi to approve deal as Moscow looks to expand trade links with Asia.
TNK-BP, a Russian-British company, is under fire concerning 784 environmental accidents reported in 2011, compared with 20 by rival Lukoil.
A deal would be the biggest Chinese equity participation in onshore oil in Russia.
'The contract in current market parameters is absolutely unprecedented', Putin told investors at the annual Saint Petersburg International Economic Forum.
The tragedy was at an industrial waste plant near the oil rich Siberian city of Khanty-Mansiysk.
Russian officials refused to allow the vessel to enter the Northern Sea Route which Greenpeace dubbed 'a thinly veiled attempt to stifle peaceful protest'.
First shipment leaves from Yamal Peninsula across the roof of the world as tankers head through the Northern Sea Route for first time.
There won't by any other Russian idea or brand, or anything from Russia that would be as sellable as Russian Winter.