News Release

NYMEX to Change Margins for Crude Oil, Related Futures Contracts

Mon Oct 29 2007

NEW YORK, N.Y., October 29, 2007 -- The New York Mercantile Exchange, Inc. today announced margin changes for its crude oil and related futures contracts, beginning at the close of business tomorrow.

Margins for the December 2007 crude oil, crude oil calendar swap, and crude oil financial futures contracts will increase to $4,750 from $3,500 for clearing members, to $5,225 from $3,850 for members, and to $6,413 from $4,725 for customers. Margins for all other months will increase to $4,000 from $3,500 for clearing members, to $4,400 from $3,850 for members, and to $5,400 from $4,725 for customers

Margins for the December 2007 NYMEX miNYTM crude oil futures contract will increase to $2,375 from $1,750 for clearing members, to $2,613 from $1,925 for members, and to $3,206 from $2,363 for customers. Margins for all other months will increase to $2,000 from $1,750 for clearing members, to $2,200 from $1,925 for members, and to $2,700 from $2,363 for customers.  

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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.

Contact: Anu Ahluwalia 212-299-2439 or  Keil Decker, 212-299-2209

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