October 2003 Natural Gas Customer Choice Program Customer Enrollment Levels Residential Customer Enrollment Customer Choice  Program Enrolled Residential Customers Percent Residential Enrolled Columbia Gas of Ohio 562,285 of 1,229,549 45.7%

June 2006 Natural Gas Customer Choice Program Customer Enrollment Levels  (Updated Quarterly)               Residential Customer Enrollment      

Ohio Utility Rate Survey The Ohio Utility Rate Survey provdes an overview and comparison of electric, telephone, and natural gas utility rates in cities across Ohio. November 2009   October 2009   September 2009   August 2009 July 2009 June 2009 May 2009 April 2009   March 2009