Russian authorities have issued a summons to Robert Dudley, Chief Executive of BP PLC’s (ADR: BP) regional joint venture TNK-BP Holding, as part of a tax probe into OAO TNK’s activities between 2001 and 2003.

BP PLC (TNK-BP Holding OAO, to a state-owned oil monopoly such as Gazprom OAO – the latest attempt by the Russian government to expand its energy monopoly and drive out international oil majors.