News Release

NYMEX to Change Margins for Heating Oil, Related Futures Contracts

Fri Dec 28 2007

NEW YORK, N.Y., December 28, 2007 -- The New York Mercantile Exchange, Inc. announced today that it will change margins for the heating oil, New York Harbor heating oil calendar swap, heating oil financial, and NYMEX miNYTM heating oil futures contracts, beginning at the close of business on Monday. 

Margins for the first month of the heating oil, New York Harbor heating oil calendar swap, and heating oil financial futures contracts will decrease to $5,000 from $6,000 for clearing members, to $5,500 from $6,600 for members, and to $6,750 from $8,100 for customers. The margins for the second to eighth months will decrease to $4,500 from $5,500 for clearing members, to $4,950 from $6,050 for members, and to $6,075 from $7,425 for customers. Margins for all other months will remain unchanged.

The margins for the first month of the NYMEX miNY heating oil futures contract will decrease to $2,500 from $3,000 for clearing members, to $2,750 from $3,300 for members, and to $3,375 from $4,050 for customers. Margins for the second to eighth months will decrease to $2,250 from $2,750 for clearing members, to $2,475 from $3,025 for members, and to $3,038 from $3,713 for customers. Margins for all other months will remain unchanged.

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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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