News Release

Exchange to Change Margins for Some Petroleum Products and Emmissions Futures Contracts on NYMEX ClearPort®

Thu Mar 02 2006

NEW YORK, N.Y., March 2, 2006 — The New York Mercantile Exchange, Inc., today announced margin changes for its NYMEX ClearPort® petroleum products and emissions futures contracts, as of the close of business tomorrow.

Margins for the Northwest Europe gasoline swap futures contract will increase to $41,000 from $33,750 for clearing members, to $45,100 from $37,125 for members, and to $55,350 from $45,563 for customers.

Margins for the Dubai crude oil calendar swap futures contract will increase to $3,000 from $2,500 for clearing members, to $3,300 from $2,750 for members, and to $4,050 from $3,375 for customers.

Margins for the Gulf Coast jet fuel calendar swap futures contract 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 Gulf Coast heating oil calendar swap futures contract will decrease to $5,000 from $5,500 for clearing members, to $5,500 from $6,050 for members, and to $6,750 from $7,425 for customers.

Margins for the Gulf Coast gasoline calendar swap futures contract will decrease to $5,000 from $7,000 for clearing members, to $5,500 from $7,700 for members, and to $6,750 from $9,450 for customers.

Margins for the Singapore jet kerosene swap futures contract will increase to $4,000 from $2,500 for clearing members, to $4,400 from $2,750 for members, and to $5,400 from $3,375 for customers.

Margins for the Gulf Coast No. 6 fuel oil 3.0% sulfur swap futures contract will increase to $2,800 from $2,400 for clearing members, to $3,080 from $2,640 for members, and to $3,780 from $3,240 for customers.

Margins for the New York Harbor residual fuel 1.0% sulfur swap futures contract will increase to $3,000 from $2,400 for clearing members, to $3,300 from $2,640 for members, and to $4,050 from $3,240 for customers.

Margins for the Singapore fuel oil spread swap futures contract will increase to $2,500 from $1,700 for clearing members, to $2,750 from $1,870 for members, and to $3,375 from $2,295 for customers.

Margins for the Singapore fuel oil 380 cst swap futures contract will increase to $18,000 from $17,000 for clearing members, to $19,800 from $18,700 for members, and to $24,300 from $22,950 for customers.

Margins for the European 1% fuel oil Rotterdam calendar swap futures contract will increase to $23,000 from $17,000 for clearing members, to $22,000 from $18,700 for members, and to $27,000 from $22,950 for customers.

Margins for the nitrogen oxide emissions futures contract will decrease to $1,200 from $2,000 for clearing members, to $1,320 from $2,200 for members, and to $1,620 from $2,700 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.

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