News Release

NYMEX to Change Margins for Heating Oil, Related Futures Contracts

Fri Feb 02 2007

NEW YORK, N.Y., February 2, 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, effective at the close of business on Monday, February 5.

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 $4,250 from $3,750 for clearing members; to $4,675 from $4,125 for members; and to $5,738 from $5,063 for customers. Margins for the second to eighth 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. The margins for the ninth through 12th months will increase to $3,750 from $3,250 for clearing members; to $4,125 from $3,575 for members; and to $5,063 from $4,388 for customers. Margins for all other months will increase to $3,500 from $3,000 for clearing members; to $3,850 from $3,300 for members; and to $4,725 from $4,050 for customers.

Margins for the first month of the NYMEX miNY heating oil futures contract will increase to $2,125 from $1,875 for clearing members; to $2,338 from $2,063 for members; and to $2,869 from $2,531 for customers. Margins for the second to eighth 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. The margins for the ninth through 12th months will decrease to $1,875 from $1,625 for clearing members; to $2,063 from $1,788 for members; and to $2,531 from $2,194 for customers. Margins for all other months will increase to $1,750 from $1,500 for clearing members; to $1,925 from $1,650 for members; and to $2,363 from $2,025 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

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