LONDON, March 31 (Reuters) - UK oil and gas major BP has appointed a new head of its Russian business with immediateeffect, the company said on Monday.
David Campbell, who is currently head of the group chiefexecutive's office in London, will become president of BP Russiaat a time of political turmoil after Russia's takeover of Crimeafrom Ukraine.
BP is the biggest foreign investor in Russia's oil sectorthrough its stake of under 20 percent in the Kremlin's state oilchampion Rosneft.
BP's Russian business produces over a quarter of itsworldwide oil output and holds more than a third of its oil andgas reserves.
Between 2003 and 2007, Campbell was based in Russia as asenior employee of TNK-BP, the company's Russian joint venturewhich was last year sold to Rosneft for $55 billion. (Reporting by Karolin Schaps; editing by Sarah Young)