After George Soros increased his ownership stake in Penn Virginia (NYSE: PVA) to 9.2%, in addition to taking an active role in the oil and natural gas producer, shares soared higher. Soros expressed interested in exploring strategic alternatives for Penn Virginia, one of which would be selling the company and its valuable Eagle Ford assets in Texas. How well could this strategy pan out for Soros? If Halcon Resources (HK) teaches us anything, unloading shale assets is difficult when Big Oil is sitting on the sidelines.

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This segment is from Thursday'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 and materials sectors @TMFEnergy.