New York, N.Y., February 6, 2008 --  The New York Mercantile Exchange, Inc. today announced margins for its new MACI and Backwardation-Contango index futures contact that will launch on CME Globex^®, NYMEX ClearPort^®, and the NYMEX trading floor on February 10 for trade date February 11.

Margins for the MACI index futures (contract code XC) contract will be $1,100 for clearing member, $1,210 for members, and $1,485 for customers. 

Margins for the Backwardation-Contango index futures (contract code XK) contract will be $200 for clearing members, $220 for members, and $270 for customers. 

NYMEX will provide a 98% credit for the spread trade of each 30 MACI index futures contracts against one strip of six months of the NYMEX crude oil futures comprising the MACI index futures.

Forward Looking and Cautionary Statements

This press release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, with respect to our future performance, operating results, strategy, and other future events. Such statements generally include words such as could, can, anticipate, believe, expect, seek, pursue, and similar words and terms, in connection with any discussion of future results. Forward-looking statements involve a number of assumptions, risks, and uncertainties, any of which may cause actual results to differ materially from the anticipated, estimated, or projected results referenced in forward-looking statements. In particular, the forward-looking statements of NYMEX Holdings, Inc., and its subsidiaries are subject to the following risks and uncertainties: the success and timing of new futures contracts and products; changes in political, economic, or industry conditions; the unfavorable resolution of material legal proceedings; the impact and timing of technological changes and the adequacy of intellectual property protection; the impact of legislative and regulatory actions, including without limitation, actions by the Commodity Futures Trading Commission; and terrorist activities and international hostilities, which may affect the general economy as well as oil and other commodity markets. We assume no obligation to update or supplement our forward-looking statements.