(Reuters) – Warren Buffett’s Berkshire Hathaway Inc disclosed a $4.48 billion stake in oil refiner Phillips 66 , rebuilding a bet it had made in the energy industry before oil prices fell.
(Reuters) – Warren Buffett’s Berkshire Hathaway Inc disclosed a $4.48 billion stake in oil refiner Phillips 66 , rebuilding a bet it had made in the energy industry before oil prices fell.