Every quarter, investors and firms with more than $100 million have to file the Form 13F, which details equities they recently bought or sold. Warren Buffett's Berkshire Hathaway filed its report, showing that the Oracle moved away from tech bellwether Intel and picked up a few stellar energy companies in National Oilwell Varco and recently-spun-off Philips 66. Watch the video below for more information on these great energy companies, as well as some reasons why Buffettfinds them attractive. 

Berkshire Hathaway is the perfect example of a stock that you can purchase and not think about until you retire comfortably. We all would like to build long-term wealth and retire well. For this reason, we have a free report, "3 Stocks That Will Help You Retire Rich," in which we reveal stocks that could help you build capital, as well as some winning wealth-building strategies. Click here to keep reading.