News Release

NYMEX to Change Margins for Natural Gas, Related Futures Contracts

Thu Dec 27 2007

NEW YORK, NY, December 27, 2007 -- The New York Mercantile Exchange, Inc. today announced margin changes for its natural gas; Henry Hub swap, swing swap and penultimate swap; natural gas penultimate and last day financial; and NYMEX miNYTM natural gas futures contracts, effective at the close of business tomorrow. 

Margins for the first and second months of the natural gas, natural gas penultimate financial, and natural gas last day financial futures contracts will decrease to $5,500 from $6,500 for clearing members, to $6,050 from $7,150 for members, and to $7,425 from $8,775 for customers. The margins for the third month 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. Margins for the fourth to seventh months will decrease to $4,500 from $5,000 for clearing members, to $4,950 from $5,500 for members, and to $6,075 from $6,750 for customers.  Margins for the eighth to 14th months will decrease to $4,750 from $5,000 for clearing members, to $5,225 from $5,500 for members, and to $6,413 from $6,750 for customers. The margins for the 15th to 26th months will decrease to $3,750 from $4,000 for clearing members, to $4,125 from $4,400 for members, and to $5,063 from $5,400 for customers. Margins for 27th to 38th months will decrease to $3,250 from $3,500 for clearing members, to $3,575 from $3,850 for members, and to $4,388 from $4,725 for customers. The margins for all other months will remain the same.

The margins for the first and second months of the NYMEX miNY, Henry Hub swap and penultimate swap futures contracts will decrease to $1,375 from $1,625 for clearing members, to $1,513 from $1,788 for members, and to $1,856 from $2,194 for customers. The margins for the third month will decrease to $1,250 from $1,500 for clearing members, to $1,375 from $1,650 for members, and to $1,688 from $2,025 for customers. Margins for the fourth to seventh months will decrease to $1,125 from $1,250 for clearing members, to $1,238 from $1,375 for members, and to $1,519 from $1,688 for customers. The margins for the eighth to 14th months will decrease to $1,188 from $1,250 for clearing members, to $1,306 from $1,375 for members, and to $1,603 from $1,688 for customers.  The margins for the 15th to 26th months will decrease to $938 from $1,000 for clearing members, to $1,031 from $1,100 for members, and to $1,266 from $1,350 for customers. Margins for 27th to 38th months will decrease to $813 from $875 for clearing members, to $894 from $963 for members, and to $1,097 from $1,181 for customers. The margins for all other months will remain the same.

The margins for the Henry Hub swing swap futures contracts will decrease to $1,375 from $1,625 for clearing members, to $1,513 from $1,788 for members, and to $1,856 from $2,194 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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