"The potential of market volatility affecting pricing is the biggest problem and the most major concern, " Mr. Cutler said.

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This suggests that, on a daily basis, traders are pricing a historically high level of volatility into option contracts.

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Selman Akyol at Stifel Nicolaus has become critical of some partnerships in natural gas storage because the flatness in natgas pricing makes it difficult for some customers to profit from the volatility of the commodity.

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