News Release

NYMEX Henry Hub Natural Gas Swap Futures Contract Reaches Open Interest Milestone

Wed Aug 16 2006

NEW YORK, N.Y., August 16, 2006 — The New York Mercantile Exchange, Inc. today announced that open interest in the Henry Hub natural gas swap futures contract surpassed the 3 million contract mark for the first time on August 14. Open interest reached 3, 005,193 contracts.

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