The Russian billionaires behind TNK-BP must surely be rejoicing as it emerges Robert Dudley has finally given in and says he will step down before the year’s out. He will be replaced by a new Russian-speaking independent chief executive, according to the Times, with several new independent directors joining the board. So for now both sides may have called a truce but I doubt this is the last of the strife we hear from BP’s turbulent Russian venture.