Exhibit 99.1 Attachment 2 THIRD QUARTER PER SHARE RESULTS WESTERN RESOURCES, INC. Earnings(1) Adj. Earnings(2) Cash Flow(3) Quarter Ended September 30, 1999 1998 1999 1998 1999 1998 Utility(4) $1.28 $1.08 $1.36 $1.16 $1.90 $1.69 ONEOK 0.12 0.10 0.12 0.10 0.12 0.10 Protection One (0.27) (0.04) (0.18) 0.04 0.41 0.44 Other (Net of Interest on Unallocated Debt) (0.11) (0.11) (0.11) (0.11) (0.10) (0.11) Earnings Before Non-Operating COLI and Non-Recurring Events $1.02 $1.03 $1.19 $1.19 $2.33 $2.12 Western Resources - Non-Operating COLI (0.02) 0.01 (0.02) 0.01 (0.02) 0.01 Non-Recurring Events - (0.02) (0.02) (0.02) (0.02) (0.02) (0.02) Protection One - Increased Amortization Expense (0.32) 0.00 (0.32) 0.00 0.17 0.00 Non-Recurring Events 0.06 0.06 0.06 0.06 0.09 0.06 Total Earnings per Share $0.72 $1.08 $0.89 $1.24 $2.55 $2.17 (1) Line of business reporting does not reflect intercompany eliminations. (2) Earnings + goodwill amortization. (3) Earnings + depreciation and amortization. (4) Interest expense is allocated on $1.9 billion of debt.