TY - SER AU - Tomberg,Igor TI - Gazprom-Sibneft: a transaction with many dimensions KW - Rusia N2 - Glazprom recently unveiled plans to acquire Russian oil producer Sibneft, paying $13.091bn for a majority stake and further $500mm for 3.016% of shares from Gazprombank, in what is repoted to be the largest deal in the Russian oil sector to date ER -