The board of Russia's third-largest oil producer, TNK-BP
A source familiar with the situation told Reuters the additional payout for the first half of 2011 was approved at a board meeting on Friday. On top of $4.2 billion already paid this year, it will bring total payments to $5.5 billion, the source said.
Another source said former BP Chief Executive Tony Hayward had resigned from the TNK-BP board due to other commitments.
Since being forced out of BP in the wake of the Gulf of Mexico oil spill, Hayward has taken on a variety of roles executive and non-executive roles, including founding a $4 billion Kurdistan focused exploration vehicle.
(Reporting by Vladimir Soldatkin and Tom Bergin in London; editing by Tim Pearce and Diane Craft)