TNK-BP, the Russian joint venture owned 50/50 by BP and a group of Russian tycoons, has appointed two new directors to the management board of its main operating company, continuing its moves to stabilise its governance following the dispute that shook the company last year.

The venture has still not appointed a chief executive to replace Bob Dudley, who was forced out of Russia last summer, but is interviewing candidates and hopes to have a replacement by the middle of the year.