US STOCKS-Wall St rises as Apple, energy stocks drive gains
* Oil prices highest in six months
* Apple rises after Buffett reports stake in company
* Anacor Pharma jumps after receiving $5.2 bln buyout offer
* Indexes up: Dow 0.80 pct, S&P 0.78 pct, Nasdaq 1 pct (Updates to early afternoon)
By Tanya Agrawal
May 16 (Reuters) - Wall Street rose in early afternoon trading on Monday, bolstered by a jump in Apple shares and gains in energy stocks.
The iPhone maker's shares were up 3.4 percent after Warren Buffett's Berkshire Hathaway reported a stake worth about $1 billion in the company. The stock gave the biggest boost to the three indexes.
Oil jumped more than 3 percent to its highest in six months due to disruptions in Nigerian output and after long-time bear Goldman Sachs said the market had ended almost two years of oversupply and flipped to a deficit.
U.S. stocks fell on Friday as gloomy quarterly reports from retailers overshadowed upbeat April retail sales data, leaving the Dow and the S&P 500 lower for the third straight week. Continuación...