The expiration date for the February 2012 option contracts for the Crude Oil Option (LO) is
Tuesday, January 17, 2012. GENERAL OPERATIONAL PROCEDURES  All Clearing Members and
Qualified Floor Traders that carried an options position as of the close of business day prior to
the expiration day, or engaged in trading activity on Expiration Day in the expiring option
contracts will be required to have a knowledgeable, duly authorized representative present at the
their normal work station promptly at 3:15 PM EST until released by the Exchange staff as specified
below. All adjustments and/or corrections, must be accompanied by relevant supporting
documentation prior to being incorporated into expiration processing, in essence making the
expiration processing an extension of the afternoon trade resolution procedures.   CME
Group NY Division Clearing (212-299-2120), Floor Trade Processing (212-299-2465 and 212-299-2044)
personnel, as well as a representative of the Floor Committee will be available to assist with the
processing of notices of Exercise and Abandonment, transfers, trade corrections and other questions
or problems you may have.  For the full text of this advisory, please click here.