NYMEX Holdings, Inc. To Present At Sandler O'Neill Conference

NYMEX Holdings, Inc. (NYSE:NMX), the parent company of the New York Mercantile Exchange, Inc., announced today that NYMEX President and Chief Executive Officer James E. Newsome and NYMEX Chief Financial Officer Kenneth Shifrin will present at the Sandler O'Neill eBrokerage and Global Exchange Conference in New York City on Thursday, June 7, 2007 at 9:30 a.m. ET.

A live webcast of the presentation will be available on the NYMEX Investor Relations web site: http://investor.nymex.com . A replay will be available after the presentation at the same address. Please allow 15 minutes prior to the webcast to visit the site and download and install any necessary audio software.

About NYMEX Holdings, Inc.

NYMEX Holdings, Inc. (NYSE:NMX) is the parent company of the New York Mercantile Exchange, Inc. (NYMEX), the world’s largest physical commodity futures and options exchange. NYMEX offers futures and options trading in energy, metals and soft commodities contracts and clearing services for more than 280 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 a 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.