Warren Buffett is the incredibly successful CEO of Berkshire Hathaway (BRK.A -0.53%) (BRK.B -0.55%). The stocks his company owns tend to receive plenty of extra attention from investors who want to mimic his investment approach (and match the level of returns Berkshire manages).There's a dichotomy today in the energy sector, in which Buffett owns two very different energy stocks. Which of these energy stocks is the better option for your portfolio?What does Warren Buffett do?Warren Buffett is the CEO of a c ...