This excerpt taken from the DYN 8-K filed Aug 13, 2009.
Successors and Assigns. The Shareholders shall not assign this Agreement without the written consent of Dynegy. Dynegy may assign this Agreement only to any successor to substantially all of its business as a result of a merger, consolidation or sale by Dynegy. Subject to the foregoing, this Agreement shall be binding upon and inure to the benefit of and be enforceable by the successors and assigns of the parties hereto.