Performance Bond Requirements - New NYMEX Power and NGL Inter Commodity Spreads - Effective Friday, December 11, 2009

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As per the normal review of market volatility to ensure adequate collateral coverage, the Chicago Mercantile

Exchange Inc., Clearing House Risk Management staff approved the performance bond requirements for the

following products listed below.

The rates will be effective after the close of business on

Friday, December 11, 2009

Current rates as of:

Thursday, December 10, 2009.

 New NYMEX Power and NGL Inter Commodity Spreads

 For the full text of this advisory, please click here.