For Buffett, It's Another Day, Another Buy of Phillips 66 Stock

  • Berkshire increased Phillips stake seven straight trading days
  • Oil refiner is sixth-largest holding in Buffett's portfolio

Warren Buffett.

Photographer: Scott Eells/Bloomberg
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For Warren Buffett, every day lately has been a good day to buy Phillips 66 stock.

The billionaire’s Berkshire Hathaway Inc. has added shares of the oil refiner for seven straight trading days, spending more than $450 million on almost six million shares.