In search of greener pastures

Recent and ongoing upward market volatility in the energy sector has attracted hedge fund managers in substantial numbers. According to the Energy Hedge Fund Center (EHFC), a Houston, Texas-based energy hedge fund and investor consulting and research firm, the number of hedge fund managers holding more than 25% of their assets in energy has increased from about 100 in 2003 to 500 as of May 2006.

But while managers have enjoyed significant short-term gains as prices for commodities such as cru