UPDATED: Equity Office Properties Trust (EOP) approved a merger between EOP and Blackstone Real Estate Partners, an affiliate of The Blackstone Group.   The merger is expected to become effective Friday, February 9, 2007. On the business day immediately following the effective date of the merger all Equity Office Properties Trust future contracts will require the delivery of receipt of: $5,550.00 in cash. Expiry of all EOP1C future contacts will be accelerated. This corporate action will be coordinated with the Options Clearing Corporation.