In this video, Motley Fool energy analyst Joel South tells us about three interesting companies in the oil and natural gas sectors. He discusses Clean Energy (NASDAQ:CLNE) and how it is on track to profit from an ever-expanding consumer infrastructure for natural gas in the U.S; Heckmann (NYSE:HEK), whose big merger announced this week is just the play it needs to boom after last quarter's major bust; and, finally, Magnum Hunter Resources (NYSE:MHR), a junior oil company whose Q3 near-miss in earnings may belie much deeper growth potential.

Joel South has no positions in the stocks mentioned above. Taylor Muckerman has no positions in the stocks mentioned above. The Motley Fool owns shares of Clean Energy Fuels and Heckmann and has the following options: long JAN 2014 $4.00 calls on Heckmann. Motley Fool newsletter services recommend Clean Energy Fuels. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.