NYMEX Holdings, Inc. Announces Timing Of First Quarter 2008 Earnings Release, Conference Call

NYMEX Holdings, Inc., (NYSE: NMX) the parent company of the New York Mercantile Exchange, announced today that it intends to release its first quarter 2008 results on Thursday, May 1, 2008. In conjunction with this release, NYMEX will host a conference call at 8:00 AM Eastern Time, which will be simultaneously broadcast over the internet.

                          Thursday, May 1, 2008
                           8:00 AM Eastern Time
                           7:00 AM Central Time
                          6:00 AM Mountain Time
                           5:00 AM Pacific Time

Listeners may access the conference call live over the internet under the Investor Relations section of the Company's website, http://investor.nymex.com/. Please allow 15 minutes prior to the call to visit the site and download and install any necessary audio software. Those wishing to listen to the live conference via telephone should dial (800) 299-0148 if calling from within the United States or (617) 801-9711 if calling from outside the United States, at least 10 minutes before the call begins. The passcode for the call is 91241097.

An archived version of the conference call will also be available at http://investor.nymex.com/ within approximately 90 minutes of the conclusion of the call.