40 under 40

Our 2013 edition of the list features young hotshots who are rocking businesses as diverse as air travel, natural gas, and genetic coding, as well as—if you can believe it— government.

25. Ben Hulburt

40u40 ben hulburt eclipse
  • Age: 39
  • Title: CEO
  • Company: Eclipse Resources

In 2001, with an investment of $1 million, Army vet Hulburt co-founded Rex Energy, an independent energy outfit he grew into a $300 million company by buying up oil and gas fields before taking it public in 2007. With his brother, he then founded Eclipse, based in State College, Pa., a developer of natural-gas properties in the Appalachian Basin. The firm has 90 employees and an estimated $1 billion valuation—an IPO looks imminent. Downtime: Hulburt has a man cave in his home adorned with memorabilia honoring his two favorite football teams: the Buffalo Bills and the Penn State Nittany Lions.

  @FortuneMagazine - Last updated September 30 2013 03:41 PM ET
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