Buffett's Berkshire sheds 2 stocks, hints at new purchase

Warren Buffett's Berkshire Hathaway Inc. on Friday announced it boosted its stake in cable TV operator Charter Communications Corp., and signaled it may have another large investment planned after agreeing to buy Precision Castparts Corp. in its largest-ever purchase.

The company appears to have shed its stakes in oilfield equipment provider National Oilwell Varco Inc. and refiner Phillips 66 in the second quarter. The industry has struggled with falling oil prices.

Reuters reports Friday's filing indicates only a small percentage of the  $3.09 billion of stock that Berkshire bought in the quarter went to companies it already owned.

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