Russian gas producer Yatek has rolled out a massive exploration programme for three large oil and gas blocks in Wast Siberia's Yakutia region that it acquired at the end of the last year.

Yatek paid about 619 million roubles ($8.4 million) to authorities to secure 25-year exploration and development licences for the Severny, Yuzhny and Maysky blocks that together cover about 43500 square kilometres.

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