Performance Bond Requirement Changes: Effective Wednesday, July 22, 2009

To receive advanced notification of Performance Bond (margin) changes, through our free automated mailing list, go to: http://www.cmegroup.com/newsletter/web2lead/web2sf-old.html and subscribe to the Performance Bond Rates Advisory Notices listserver.

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 changes are effective at the close of business on Wednesday, July 22^nd, 2009.

TIER CHANGES FOR CRUDE OIL FUTURES CONTRACT (CL), FINANCIAL CRUDE OIL CONTRACT (WS), CRUDE OIL CALENDAR SWAP (CS), NYMEX miNY CRUDE OIL CONTRACT (QM), and NYMEX Crude Oil Minute-Marker Future (6C)

Note: The revisions are in bold.