Mikhail Fridman’s LetterOne Group has appointed a former Swedish prime minister as a board adviser.
The Russian Tycoon made the latest high-profile addition as it expands the oil and gas business.
Carl Bildt will take on the role a week after ex-British trade minister Mervyn Davis was names as deputy chairman of LetterOne’s board of directors.
Former BP chief executive John Browne was also named as executive chairman of L1 energy.
Fridman said: “We are pleased to have assembled a team of world-class advisers to contribute to our thinking and growth as an international business.”
Earlier this year the business man acquired DEA, the oil and gas unit of Germany’s RWE, for $5.7billion.
The deal gave LetterOne assets in Norway, Libya, Egypt, Germany, Poland and Algeria.
However it was met with resistance from the British Government, which threatened to revoke its assets in the UK North Sea amid a standoff between the West and Moscow over Russia’s actions in Ukraine.