Amendment to the Position Limit, Position Accountability and Reportable Level Table in Chapter 5 of the NYMEX Rulebook for the Mont Belvieu Ethylene In-Well (PCW) Futures Contract

Please be advised that, effective trade date June 15, 2011, the New York Mercantile Exchange, Inc. (NYMEX) is implementing an amendment to the NYMEX Chapter 5, Position Limit, Position Accountability and Reportable Level Table to decrease the expiration month position limit for the Mont Belvieu Spot Ethylene In-Well (PCW) Futures contract from its current 1,500 contract units to 1,000 contract units.     

Contract related questions can be directed to Chris Reinhardt, Associate Director, Market Surveillance, at 212.299-2882, or Ryne Toscano, Supervisor, Market Surveillance, at 212.299.2879.

(Bold/underlining indicates additions; strikethrough indicates deletions.)