American billionaire Warren Buffett, through his Nebraska-based company Berkshire Hathaway Inc. (NYSE: BRK-A), further increased his stake in Phillips 66 (PSX) by 537,968 shares, adding to Berkshire Hathaway's existing 76.37 million shares of the Houston-based oil refiner.
According to a Berkshire Hathaway US Securities and Exchange Commission filing, the almost 538,000 shares of Phillips 66 are valued at US$43 million-bringing Berkshire Hathaway's total stake in Phillips 66 to more than 15 percent.
Berkshire has been slowly increasing its stake in Phillips 66 in recent months, and now owns shares of Phillips 66 valued at more than US$6 billion.
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The purchase adds to Buffett's other oil interests as well, which include an over US$400-million stake in pipeline operator Kinder Morgan.
The fact that Buffett is still increasing his oil holdings is particularly noteworthy when viewed in contrast to many other oil and gas investors who are looking to shed their oil-related holdings.
And although Buffett has been wrong more often than he has been right when it comes to oil, his recent Phillips 66 purchases, including the most recent one, have been done at lows, following his usual stock-grab MO.
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Overall, shares in Phillips 66 have fallen 10 percent over the past six months.
Phillips 66 shares rose to $81.10 in early-morning trading on Thursday, and closed on to $80.13 on Friday.
Phillips 66 is a Houston-based midstream energy company operating chemicals, oil refining, and market businesses.
By James Burgess of Oilprice.com
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