Berkshire Hathaway Inc (BRKa.N) has bought an additional $1 billion of stock in Phillips 66 (PSX.N) this year, and now owns roughly 14.1 percent of the oil refiner.
The conglomerate run by Warren Buffett has purchased about 12.98 million Phillips 66 shares this year, including nearly 2.18 million shares in February, according to regulatory filings through Tuesday night.
Also read: Russia's FG Budushchee rises in market debut
21:06 Apple's Q4 2016 results: Better than expected with 45.5 million iPhones sold, but revenue continues to slide19
04:49 UBS sees tough markets ahead as third-quarter profit drops15
05:47 Samsung's smartphone share hit by Note7 debacle, stiff competition20
20:54 Groupon Buys LivingSocial, a Rival Once Valued at $6 Billion15