News Release

NYMEX to Change Margins for Heating Oil, Related Futures Contracts

Fri May 09 2008

NEW YORK, N.Y., May 9, 2008-- 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 May 12. 

 Margins for the first month of the heating oil, New York Harbor heating oil calendar swap, and heating oil financial futures contracts will increase to $8,000 from $7,500 for clearing members, to $8,800 from $8,250 for members, and to $10,800 from $10,125 for customers. The margins for the second month will increase to $7,500 from $7,700 for clearing members, to $8,250 from $7,700 for members, and to $10,125 from $9,450 for customers. Margins for third through 11th months will increase to $6,750 from $6,250 for clearing members, to $7,425 from $6,875 for members, and to $9,113 from $8,438 for customers. The margins for all other months will increase to $6,250 from $5,750 for clearing members, to $6,875 from $6,325 for members, and to $8,438 from $7,763 for customers. 

The margins for the first month of the NYMEX miNY heating oil futures contract will increase to $4,000 from $3,750 for clearing members, to $4,400 from $4,125 for members, and to $5,400 from $5,063 for customers. Margins for the second month will increase to $3,750 from $3,500 for clearing members, to $4,125 from $3,850 for members, and to $5,063 from $4,725 for customers. The margins for third through 11th months will increase to $3,375 from $3,125 for clearing members, to $3,713 from $3,438 for members, and to $4,556 from $4,219 for customers.  Margins for all other months will increase to $3,125 from $2,875 for clearing members, to $3,438 from $3,163 for members, and to $4,219 from $3,881 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: Brenda Guzman, 212-299-2436 or Keil Decker, 212-299-2209

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