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NYMEX Holdings, Inc. Announces Timing Of First Quarter 2007 Earnings Release, Conference Call

Date 11/04/2007

Holdings, Inc., the parent company of the New York Mercantile Exchange, Inc. (NYSE: NMX) announced today that it intends to release its first quarter 2007 results on Tuesday, May 1, 2007. 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.

Tuesday, May 1, 2007
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) 299-7928 if calling from within the United States or (617) 614-3926 if calling from outside the United States, at least 10 minutes before the call begins. The passcode for the call is 98223409.

An archived version of the conference call will also be available at http://investor.nymex.com within approximately 90 minutes of the conclusion of the call.

About NYMEX Holdings, Inc. NYMEX Holdings, Inc. (NYSE:NMX) is the parent company of the New York Mercantile Exchange, Inc., the world's largest physical commodities–based futures and options exchange in the world, offering futures and options trading in energy and metals contracts and clearing services for more than 250 off–exchange energy contracts. Through a hybrid model of open outcry floor trading and electronic trading on CME Globex® and NYMEX ClearPort®, NYMEX offers crude oil, petroleum products, natural gas, coal, electricity, gold, silver, copper, aluminum, platinum group metals, and soft commodities contracts for trading and clearing virtually 24 hours each day. Further information about NYMEX Holdings, Inc. and the New York Mercantile Exchange, Inc. is available on the NYMEX website at http://www.nymex.com.