Gazprom, Moscow, (London: OGZD) plans to acquire Siberian assets from BP Plc, London, (NYSE: BP) and BP's Russian joint venture, TNK-BP, (RTS: TNBP) for between US$700 million and US$900 million. The assets include a 62.9% stake in Russia Petroleum, which holds the license for Kovykta Field in eastern Siberia, and a 50% interest in East Siberian Gas Co. that is constructing the regional gasification project. BP and Gazprom also have entered a strategic alliance to invest jointly in major long-term energy projects or swap assets around the world.