News Release

NYMEX Announces Margins for CME Globex® Listed, Financially Settled Futures Contracts

Fri Jun 09 2006

NEW YORK, N.Y., June 9, 2006 — The New York Mercantile Exchange, Inc. today announced margin rates for the five full–sized, financially–settled energy futures contracts and the four NYMEX miNYTM futures contracts that will be begin trading on the CME Globex® electronic trading system on June 11 for the trade date of June 12.

Margins on the first through sixth contract months for the crude oil financial futures contract will be $3,500 for clearing members, $3,850 for members, and $4,725 for customers. Margins on all other months will be $2,500 for clearing members, $2,750 for members, and $3,375 for customers.

Margins on the first month of the heating oil financial futures contract will be $5,000 for clearing members, $5,500 for members, and $6,750 for customers. Margins on the second through sixth contract months will be $4,500 for clearing members, $4,950 for members, and $6,075 for customers. Margins on the seventh through 11th months will be $4,000 for clearing members, $4,400 for members, and $5,400 for customers. Margins on all other months will be $3,500 for clearing members, $3,850 for members, and $4,725 for customers.

Margins on the first month of the RBOB gasoline financial futures contract will be $6,000 for clearing members, $6,600 for members, and $8,100 for customers. Margins on the second through fifth months will be $5,500 for clearing members, $6,050 for members, and $7,425 for customers. Margins on all other months will be $4,500 for clearing members, $4,950 for members, and $6,075 for customers.

Margins on the first two contract months of the penultimate and last day natural gas financial futures contracts will be $6,500 for clearing members, $7,150 for members, and $8,775 for customers. Margins on the third through fifth contract months will be $7,500 for clearing members, $8,250 for members, and $10,125 for customers. Margins on the sixth through ninth months will be $9,000 for clearing members, $9,900 for members, and $12,150 for customers. Margins on the 10th month will be $6,000 for clearing members, $6,600 for members, and $8,100 for customers. Eleventh through 23rd month margins will be $3,500 for clearing members, $3,850 for members, and $4,725 for customers. Margins on the 24th through 48th months will be $3,000 for clearing members, $3,300 for members, and $4,050 for customers. Margins on the 49th through 60th months will be $2,500 for clearing members, $2,750 for members, and $3,375 for customers. Margins on all other months will be $2,000 for clearing members, $2,200 for members and $2,700 for customers.

Intra–commodity spread margins for the first month of the crude oil financial futures contract will be $400 for clearing members, $440 for members, and $540 for customers. Margins on the second through fifth months will be $250 for clearing members, $275 for members, and $338 for customers. Margins on the sixth through 12th months will be $150 for clearing members, $165 for members and $203 for customers. Margins on all other months will be $100 for clearing members, $110 for members, and $135 for customers.

Intra–commodity spread margins for the new heating oil financial futures contract will be, for the spot month, $250 for clearing members, $275 for members, and $338 for customers. Margins on the second through 11th months will be $150 for clearing members, $165 for members, and $203 for customers. Margins on all other months will be $100 for clearing members, $110 for members, and $135 for customers.

The intra–commodity spread margins on the RBOB gasoline financial futures contract for the first through fifth contract months will be $250 for clearing members, $275 for members, and $338 for customers. Margins on all other months will be $200 for clearing members, $220 for members, and $270 for customers.

The intra–commodity spread margins on the penultimate and last day natural gas financial futures contracts will be, for the first month, $1,000 for clearing members, $1,100 for members, and $1,350 for customers. Margins on the second through ninth months will be $750 for clearing members, $825 for members, and $1,013 for customers. Margins on the 10th through 60th months will be $500 for clearing members, $550 for members, and $675 for customers. Margins on all other months will be $250 for clearing members, $275 for members, and $338 for customers.

Margins for all months of the NYMEX miNYTM crude oil futures contract will be $1,750 for clearing members, $1,925 for members, and $2,363 for customers. The intraintra–commodity spread margins for the first month are $200 for clearing members, $220 for members, and $270 for customers. Margins for the other months are $125 clearing members, $138 for members, and $169 for customers.

Margins for the first two months of the NYMEX miNYTM natural gas futures contract are $1,625 for clearing members, $1,788 for members, and $2,194 for customers. Margins on the third month are $1,875 for clearing members, $2,063 for members, and $2,531 for customers.

The intra–commodity spread margins for all months are $250 for clearing members, $275 for members, and $338 for customers.

The margins for the first month of NYMEX miNYTM heating oil futures contract are $2,500 for clearing members, $2,750 for members, and $3,375 for customers. Margins on the other months are $2,250 for clearing members, $2,475 for members, and $3,038 for customers.

The intra–commodity spread margins on the first month are $125 for clearing members, $138 for members, and $169 for customers. Margins on the other months are $75 for clearing members, $83 for members, and $101 for customers.

Margins on the first month of the NYMEX miNYTM RBOB gasoline futures contract are $3,000 for clearing members, $3,300 for members, and $4,050 for customers. Margins on the other months are $2,750 for clearing members, $3,025 for members, and $3,713 for customers.

The intra–commodity spread margins for all months are $125 for clearing members, $138 for members, and $169 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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