Warren Buffett's flagship gains from investments and derivatives and higher non-insurance earnings.

Buying the electric utility serving Las Vegas and its power-hungry casinos is the latest large energy deal for Buffett in the western U.S.

Credit-rating agency cites the company's reliance on its insurance operations for dividend income.

Praises U.S. Fed chairman Bernanke as a 'gutsy guy.'

Does not name successor, in keeping with practice, but says son Howard, as chairman, will oversee choice of next CEO.

Improved results in insurance and gains from investments and derivative contracts lift Warren Buffett's company. | Munger says takeover prices too high

Warren Buffett's long-time investment partner at Berkshire Hathaway says they would like to make another big acquisition but attractively priced targets are scarce.

Warren Buffett accumulates Twitter followers even faster than he makes money.

Acquiring outstanding 20% of metalwork tools company it does not already own.