Occidental Petroleum has several notable catalysts that could drive its stock price higher.
Bill Gross thinks MLPs are an attractive investment right now.
The ingredients could be in place for one stock to replace Bank of America as Buffett's second largest holding.
Although Berkshire Hathaway's $373 billion portfolio contains 45 stocks and two index funds, not all of the Oracle of Omaha's holdings are equal.
Occidental Petroleum stock has made investors small fortunes in recent years.
The oil and gas giant has benefited from higher oil prices, and external factors could keep them high for longer.
Warren Buffett's Berkshire Hathaway is a giant conglomerate, more like an actively managed mutual fund than a traditional corporation.
These stocks could be near major inflection points.
This stock edged out Apple as the top stock bought by members of Congress last year.
The oil giant's venture capital arm is launching a third fund geared to renewable energy technology.