News Release

Exchange to Change Margins on NYMEX ClearPort® Petroleum Products Futures Contracts

Wed Apr 05 2006

NEW YORK, N.Y., April 5, 2006 --; The New York Mercantile Exchange, Inc., today announced margin changes on its NYMEX ClearPort® petroleum products futures contracts, as of the close of business on April 6.

Margins for the naphtha crack spread swap futures contract will increase to $2,500 from $2,200 for clearing members, to $2,750 from $2,420 for members, and to $3,375 from $2,970 for customers.

The margins on the high-low sulfur fuel oil spread swap futures contract will decrease to $9,000 from $10,000 for clearing members, to $9,900 from $11,000 for members, and to $12,150 from $13,500 for customers.

The margins on the Gulf Coast jet fuel calendar swap futures contract will increase to $9,000 from $5,000 for clearing members, to $9,900 from $5,500 for members, and to $12,150 from $6,750 for customers.

Margins on the Gulf Coast gasoline calendar swap futures contract will increase to $6,500 from $5,000 for clearing members, to $7,150 from $5,500 for members, and to $8,775 from $6,750 for customers.

The margins on the first month of the New York Harbor heating oil crack spread calendar swap futures contract will decrease to $2,500 from $3,000 for clearing members, to $2,750 from $3,300 for members, and to $3,375 from $4,050 for customers. The second through sixth months will decrease to $2,000 from $2,800 for clearing members, to $2,200 from $3,080 for members, and to $2,700 from $3,780 for customers. The seventh through 11th months will decrease to $1,500 from $2,625 for clearing members, to $1,650 from $2,888 for members, and to $2,025 from $3,544 for customers. All other months will decrease to $1,200 from $2,450 for clearing members, to $1,320 from $2,695 for members, and to $1,620 from $3,308 for customers.

The margins on the Singapore jet kerosene swap futures contract will decrease to $3,000 from $4,000 for clearing members, to $3,300 from $4,400 for members, and to $4,050 from $5,400 for customers.

Margins on the Gulf Coast gasoline vs. Gulf Coast heating oil spread swap futures contract will decrease to $2,500 from $3,125 for clearing members, to $2,750 from $3,438 for members, and to $3,375 from $4,219 for customers.

Margins on the New York Harbor unleaded gasoline vs. New York Harbor No. 2 heating oil spread swap and the New York Harbor gasoline crack spread calendar swap futures contracts will decrease to $2,500 from $3,000 for clearing members, to $2,750 from $3,300 for members, and to $3,375 from $4,050 for customers.

The margins on the Gulf Coast No. 2 heating oil crack spread swap futures contract will decrease to $2,800 from $3,250 for clearing members, to $3,080 from $3,575 for members, and to $3,780 from $4,388 for customers.

The margins on the Gulf Coast unleaded 87 gasoline crack spread swap futures contract will decrease to $3,000 from $3,500 for clearing members, to $3,300 from $3,850 for members, and to $4,050 from $4,725 for customers.

The margins on the Singapore fuel oil spread swap futures contract will decrease to $2,000 from $2,500 for clearing members, to $2,200 from $2,750 for members, and to $2,700 from $3,375 for customers.

Margins on the Singapore fuel oil 380 cst swap futures contract will decrease to $15,000 from $18,000 for clearing members, to $16,500 from $19,800 for members, and to $20,250 from $24,300 for customers.

The margins on the Singapore fuel oil 180 cst swap futures contract will decrease to $15,000 from $17,000 for clearing members, to $16,500 from $18,700 for members, and to $20,250 from $22,950 for customers.

Margins on the dated Brent crude oil calendar swap futures contract will increase to $4,500 from $2,500 for clearing members, to $4,950 from $2,750 for members, and to $6,075 from $3,375 for customers.

The margins on the European 1% fuel oil swap and the European 3.5% fuel oil Rotterdam swap futures contracts will decrease to $16,000 from $17,000 for clearing members, to $17,600 from $18,700 for members, and to $21,600 from $22,950 for customers.

Margins on the European 1% fuel oil Rotterdam swap futures contract will decrease to $20,000 from $23,000 for clearing members, to $22,000 from $25,300 for members, and to $27,000 from $31,050 for customers.

The margins on the European naphtha calendar swap futures contract will increase to $25,000 from $23,000 for clearing members, to $27,500 from $25,300 for members, and to $33,750 from $31,050 for customers.

Margins on the Singapore gasoil vs. Rotterdam gasoil swap futures contract will decrease to $2,000 from $5,000 for clearing members, to $2,200 from $5,500 for members, and to $2,700 from $6,750 for customers.

Margins on the New York Harbor Convs. gasoline vs. New York Harbor unleaded gasoline spread swap futures contract will decrease to $4,000 from $2,000 for clearing members, to $4,400 from $2,200 for members, and to $5,400 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.

Contact: Brenda Guzman , 212-299-2436

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