Dynegy Stockholders Given Opportunity to Vote Until November 23, 2010

Dynegy Inc. DYN today announced that its special meeting of stockholders has been recessed until 3:30 p.m. central time on November 23, 2010 in order to provide stockholders the opportunity to fully consider the terms of the November 16, 2010 amendment to the previously announced merger agreement, dated as of August 13, 2010, providing for the acquisition of the company by Denali Parent Inc., an affiliate of The Blackstone Group BX. Polls will remain open and votes will be accepted on the merger and adjournment proposals until 4:00 p.m. central time on Tuesday, November 23, 2010.