Shares of Berkshire Hathaway Inc. Cl B inched 0.95% higher to $458.66 Tuesday, on what proved to be an all-around favorable trading session for the stock market, with the S&P 500 Index rising 1.10% to 6,

Despite Buffett overseeing stakes in nearly four-dozen securities, the lion's share of Berkshire's invested assets have been put to work in seven top ideas.

Warren Buffett's Berkshire Hathaway has added to its holdings of Occidental Petroleum and SiriusXM, sending shares of both companies higher Friday.

This was the stock's third consecutive day of gains.

Warren Buffett's company, Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B), can't seem to get enough of Occidental Petroleum (NYSE: OXY). The conglomerate recently purchased another 8.9 million shares of the oil company for $405 million.