News Release

NYMEX to Change Margins for Propane Futures Contracts

Wed Apr 04 2007

NEW YORK, N.Y., April 4, 2007 &151; The New York Mercantile Exchange, Inc. today announced margin changes for its propane futures contracts, effective at the close of business tomorrow.

The margins for the propane futures contract will increase to $2,250 from $1,750 for clearing members, to $2,475 from $1,925 for members, and to $3,038 from $2,363 for customers.

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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: Brenda Guzman, 212-299-2436 or  Keil Decker, 212-99-2209

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