News Release

Exchange Announces Procedures for the Transition of the NYMEX miNYTM Futures Contracts to NYMEX ClearPort®

Fri Oct 21 2005

New York, N.Y., October 21, 2005 -- The New York Mercantile Exchange, Inc., will transition its NYMEX miNYTM crude oil and natural gas futures contracts to NYMEX ClearPort® from the Chicago Mercantile Exchange Globex® electronic trading system on Sunday, November 20 for the trade date of November 21.

The December NYMEX miNYTM crude oil futures contract will expire on Globex® at 2:30 PM New York time on November 17. The January contract will be listed for trading on Globex® at 3:15 PM New York time on November 3, for the trade date of November 4. It will cease trading on Globex® at 2:30 PM New York time on November 18. The January NYMEX miNYTM crude oil futures contract will then transition to NYMEX ClearPort® from Globex® and commence trading at 7 PM New York time on Sunday, November 20 for the trade date of November 21.

The January NYMEX miNYTM natural gas futures contract will be listed for trading on Globex® at 3:15 PM New York time on November 9 for the trade date of November 10. The December and January NYMEX miNYTM natural gas futures contracts will cease trading on Globex® on at 2:30 PM New York time on November 18 but will commence trading on NYMEX ClearPort® at 7:00 PM New York time on Sunday, November 20 for the trade date of November 21.

Exchange President James E. Newsome said, "The migration of the NYMEX miNYTM futures contracts to the NYMEX ClearPort® trading and clearing system allows the Exchange to offer its customers the ability to manage their risk from a single electronic platform."

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