Official Committee of Unsecured Creditors of Columbia Gas Transmission Corp. v. Columbia Gas Transmission Corp. et al.; Official Committee of Customers of Columbia Gas Transmission Corp. v. Official Committee of Unsecured Creditors of Columbia Gas Transmission Corp.; Pennsylvania Public Utility Commission et al. v. Official Committee of Unsecured Creditors of Columbia Gas Transmission Corp.; and Cities of Charlottesville and Richmond, Virginia v. Official Committee of Unsecured Creditors of Columbia Gas Transmission Corp.