Chicago, 26 October 2009 

CME Group, the world's largest and most diverse derivatives marketplace, today announced the launch of trading and clearing services for two new NYISO Zone F, peak and off-peak, electricity swap futures contracts.

Trading will be available on the New York trading floor and clearing services will be available through CME ClearPort®, a set of flexible clearing services open to over-the-counter (OTC) market participants to substantially mitigate counterparty risk and provide neutral settlement prices across asset classes. Trading and clearing are scheduled to begin on Sunday, Nov. 8 for trade date Monday, Nov. 9. These contracts will be listed by and subject to the rules and regulations of NYMEX.

The futures contracts and commodity codes will be: 4L for NYISO Zone F 5 MW Peak Calendar-Month Day-Ahead LBMP Swap Futures and 4M for NYISO Zone F 5 MW Off-Peak Calendar-Month Day-Ahead LBMP Swap Futures.

These new futures contracts will be cash-settled. The first listed month for these contracts will be the December 2009 contract month. Monthly contracts will list current year plus the next five calendar years, consecutively. A new calendar year will be added following the termination of trading in the December contract of the current year.

NYMEX will allow Exchange of Futures for Physical (EFP) and Exchange of Futures for Risk (EFR), collectively referred to as Exchange for Related Position (EFRP) transactions to be submitted through CME ClearPort.

For more information please visit:

www.cmegroup.com/clearport