UK supermajor BP and the Russian partnership of Alfa Group and Access/Renova Industries, which each hold 50% stakes in TNK-BP, again came to blows with billionaire owners Mikhail Fridman of Alfa and Viktor Vekselberg of Renova accusing BP of "usurping power in the company".
The two Russian shareholders also said they would start court proceedings against BP in the Stockholm Arbitration Chamber.
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