Dear CME Globex Customers,

On Sunday June 11, 2006 (for trade date Monday, June 12), CME is scheduled to launch access to the following NYMEX energy cash-settled full-sized and NYMEX miNY^TM products on the CME Globex platform:

• Crude Oil futures
• Natural Gas futures
• Heating Oil futures
• RBOB Gasoline futures

These NYMEX products will be available in the CME certification environment for customer testing this Tuesday, May 23.

The Client Impact Assessment will be available soon.

Market Data Information
In the CME certification environment, CME will disseminate electronically-traded NYMEX market data, in RLC format only, on certification channel 20, and Instrument Creation (MO) messages on channels 1 and 16, on the CME Market Data Platform; and on CME Market Data API (MD API) under the TIBCO subscription subject CMECERT_NYM.> On CME MD API, MO messages will be disseminated under the TIBCO subscription subject CMECERT.>

In the CME production environment, CME will disseminate electronically-traded NYMEX market data, in RLC format only, on production channel 20, and Instrument Creation (MO) messages on channels 1 and 16, on the CME Market Data Platform; and on CME Market Data API (MD API) under the TIBCO subscription subject CME_GB2_NYM.> On CME MD API, MO messages will be disseminated under the TIBCO subscription subject CME_GB2.>

The complete NYMEX ITC-format market data feed (including pit-traded market data) will be available only from NYMEX.

Consistent with current CME policy, CME-disseminated NYMEX market data used for trading purposes via order-routing systems will be fee-waived. To redistribute any NYMEX market data for non-trading purposes, whether sourced from CME or NYMEX, customers are required to execute the NYMEX Market Data Agreement. Contact NYMEX Market Data Services for more information and a copy of the Agreement.

CME will support a top five depth of market for electronically-traded NYMEX products. NYMEX data redistributors may combine depth of market with top-of-book data so long as the NYMEX Market Data Agreement has been executed.

If you have any questions or concerns, please contact your CME Globex Account Manager at 312.634.8700, or in Europe at +44.207.623.2550.

Thank you,

CME