Oil men, known as wildcatters, got the shale revolution started back in the 80's and 90's with their penchant for high risk, high reward situations. This has apparently carried over into their roles as the CEO of their highly successful companies. Harold Hamm, the founder and CEO of Continental Resources (NYSE:CLR) is just the latest example in a string that has included Aubrey McClendon at Chesapeake Energy (OTC:CHKA.Q) and Tom Ward at Sandridge Energy (NYSE: SD).

This kind of activity would likely make Warren Buffett nervous

This segment is from Tuesday's edition of "Digging for Value," in which sector analysts Joel South and Taylor Muckerman discuss energy and materials news with host Alison Southwick. The twice-weekly show can be viewed on Tuesdays and Thursdays. It can also be found on Twitter, along with our extended coverage of the energy & materials sectors @TMFEnergy.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.