Ex99-1 VECTREN CORPORATION CHANGE IN CONTROL AGREEMENT This AGREEMENT is by and between Vectren Corporation, an Indiana corporation (the "Company"), and Niel C. Ellerbrook (the "Executive"), dated as of March 1, 2005 (the "Commencement Date"), and...Change in Control Agreement • March 3rd, 2005 • Vectren Utility Holdings Inc • Gas & other services combined • Indiana
