News Release

Exchange to Extend Contract Months for Six Natural Gas Basis Swaps Futures Contracts

Thu Aug 18 2005

NEW YORK, N.Y., August 18, 2005 — The New York Mercantile Exchange, Inc., announced today that it will extend the contract months listed for six of its natural gas basis swap futures contracts to 60 months from 36 months on its NYMEX ClearPort® electronic trading and clearing platform, beginning on August 22.

The contracts include Houston Ship Channel basis swap futures (NH); Natural Gas Pipeline Co. of America Texok basis swap futures (PD); Northwest Pipeline, Rockies basis swap futures (NR); Panhandle basis swap futures (PH); SoCal basis swap futures (NS); and Waha basis swap futures (NW).

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