Quite often, the leaders of our energy companies make quite a bit of money. However, just because the leader of your company has been wildly successful, doesn't mean that particular company is worth investing in. Today we'll take a look at four energy industry billionaires and the companies they run to see which, if any, present compelling investment opportunities. The wildcatter After news of Aubrey McClendon's latest round of egregious misdeeds at Chesapeake Energy ( NYS: CHK ) broke in April, shares plummeted. McClendon has a long history of disreputable tricks on and off the company's balance sheet, and Reuters had a field day (or two or three) shedding some light on his activities. Despite activist investor Carl Icahn picking up a large stake, the stock is still down close to 20% year to date. Chesapeake owns some of the best assets in the energy business -- trading for about $19.00 at a P/E of 6.32, it is the equivalent of buying something on sale with a coupon.