Buffett's stake in PSX not meaningful: Matthews

Warren Buffet's stake in refiner Phillips 66 (NYSE: PSX) may not really say anything about how investors should play the energy market, said Ram Partners general partner, Jeff Matthews, on Monday. "I'm not sure what this means except he is moving money around and he thinks that the refining side of the business is probably a better bet because there is going to be a lot of oil around for a ...