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NYMEX To Change Margins For Natural Gas And Related Futures Contracts

Date 29/08/2006

The New York Mercantile Exchange, Inc. today announced margin changes for its natural gas, Henry Hub swap, natural gas penultimate and last day, NYMEX miNYTM natural gas, and Henry Hub penultimate futures contracts, beginning at the close of business tomorrow.

Margins for the first and second months of the natural gas and natural gas penultimate and last day futures contract will remain the same. The margins for the third month will increase to $11,000 from $10,500 for clearing members, to $12,100 from $11,500 for members, and to $14,850 from $14,175 for customers. Margins for the fourth to sixth months will increase to $11,500 from $11,000 for clearing members, to $12,650 from $12,100 for members, and to $15,525 from $14,850 for customers. All other months will remain unchanged.

Margins for the first and second months of the Henry Hub swap and penultimate swap futures contract will remain the same. The margins for the third month will increase to $2,750 from $2,625 for clearing members, to $3,025 from $2,888 for members, and to $3,713 from $3,544 for customers. Margins for the fourth to sixth months will increase to $2,875 from $2,750 for clearing members, to $3,163 from $3,025 for members, and to $3,881 from $3,713 for customers. All other months will remain unchanged.

Margins for the first and second months of the NYMEX miNY natural gas futures contract will remain the same. The margins for the third month will increase to $2,750 from $2,625 for clearing members, to $3,025 from $2,888 for members, and to $3,713 from $3,544 for customers.