EXHIBIT 99.4 Last Updated 7/27/2005 PINNACLE WEST CAPITAL CORPORATION CONSOLIDATED STATISTICS BY QUARTER 2004 INCREASE (DECREASE) Line 1ST QTR 2ND QTR 3RD QTR 4TH QTR YEAR-TO-DATE VS PRIOR YTD -------- -------- -------- -------- ------------ ------------ EARNINGS CONTRIBUTION BY SUBSIDIARY ($ MILLIONS) 1 Arizona Public Service $ 34 $ 55 $ 95 $ 15 $ 200 $ 19 2 Pinnacle West Energy (22) (14) 1 (23) (58) (50) 3 APS Energy Services 2 1 1 (1) 3 (13) 4 SunCor 2 4 4 31 41 (5) 5 El Dorado - 34 - - 33 34 6 Parent Company 15 (6) 3 16 28 36 -------- -------- -------- -------- -------- -------- 7 Income From Continuing Operations 31 74 104 38 247 21 8 Income (Loss) From Discontinued Operations - Net of Tax - (1) 1 (4) (4) (18) 9 Cumulative Effect of Change in Accounting - Net of Tax - - - - - - -------- -------- -------- -------- -------- -------- 10 Net Income $ 31 $ 73 $ 105 $ 34 $ 243 $ 3 ======== ======== ======== ======== ======== ======== EARNINGS PER SHARE BY SUBSIDIARY - DILUTED 11 Arizona Public Service $ 0.38 $ 0.60 $ 1.04 $ 0.16 $ 2.18 $ 0.20 12 Pinnacle West Energy (0.24) (0.15) 0.01 (0.25) (0.63) (0.55) 13 APS Energy Services 0.02 0.01 0.01 (0.01) 0.03 (0.15) 14 SunCor 0.02 0.04 0.05 0.34 0.45 (0.05) 15 El Dorado - 0.37 - - 0.36 0.37 16 Parent Company 0.16 (0.06) 0.03 0.17 0.30 0.40 -------- -------- -------- -------- -------- -------- 17 Income From Continuing Operations 0.34 0.81 1.14 0.41 2.69 0.22 18 Income (Loss) From Discontinued Operations - Net of Tax - (0.02) 0.01 (0.04) (0.03) (0.19) 19 Cumulative Effect of Change in Accounting - Net of Tax - - - - - - -------- -------- -------- -------- -------- -------- 20 Net Income $ 0.34 $ 0.79 $ 1.15 $ 0.37 $ 2.66 $ 0.03 ======== ======== ======== ======== ======== ======== 21 BOOK VALUE PER SHARE $ 31.19 $ 31.68 $ 32.55 $ 32.24 $ 32.24 $ 1.27 COMMON SHARES OUTSTANDING - DILUTED (THOUSANDS) 22 Average 91,376 91,400 91,491 91,779 91,532 127 23 End of Period 91,310 91,309 91,443 91,793 91,793 505 See Glossary of Terms. Page 14 of 31 Last Updated 7/27/2005 PINNACLE WEST CAPITAL CORPORATION CONSOLIDATED STATISTICS BY QUARTER 2004 INCREASE (DECREASE) Line 1ST QTR 2ND QTR 3RD QTR 4TH QTR YEAR-TO-DATE VS PRIOR YTD ------- ------- ------- ------- ------------ ------------- ELECTRIC OPERATING REVENUES (DOLLARS IN MILLIONS) REGULATED ELECTRICITY SEGMENT RETAIL 24 Residential $ 189 $ 245 $ 360 $ 190 $ 984 $ 27 25 Business 211 257 289 222 979 26 ------- ------- ------- ------- ------- ------- 26 Total retail 400 502 649 412 1,963 53 WHOLESALE REVENUE ON DELIVERED ELECTRICITY 27 Traditional contracts 3 4 6 3 16 1 28 Off-system sales - - - - - - 29 Transmission for others 8 8 8 8 32 5 30 Other miscellaneous services 4 6 8 6 24 (2) ------- ------- ------- ------- ------- ------- 31 Total regulated electricity 415 520 671 429 2,035 57 MARKETING AND TRADING SEGMENT 32 Electricity and other commodity sales 89 110 91 111 401 9 ------- ------- ------- ------- ------- ------- 33 Total operating electric revenues $ 504 $ 630 $ 762 $ 540 $ 2,436 $ 66 ======= ======= ======= ======= ======= ======= ELECTRIC SALES (GWH) REGULATED ELECTRICITY SEGMENT RETAIL SALES 34 Residential 2,410 2,722 4,028 2,368 11,528 381 35 Business 3,051 3,602 3,937 3,236 13,826 410 ------- ------- ------- ------- ------- ------- 36 Total retail 5,461 6,324 7,965 5,604 25,354 791 WHOLESALE ELECTRICITY DELIVERED 37 Traditional contracts 138 195 210 167 710 210 38 Off-system sales - - - - - - 39 Retail load hedge management 169 731 943 889 2,732 1,639 ------- ------- ------- ------- ------- ------- 40 Total regulated electricity 5,768 7,250 9,118 6,660 28,796 2,640 MARKETING AND TRADING SEGMENT 41 Wholesale sales of electricity 5,696 7,143 8,995 8,348 30,182 1,380 ------- ------- ------- ------- ------- ------- 42 Total electric sales 11,464 14,393 18,113 15,008 58,978 4,020 ======= ======= ======= ======= ======= ======= See Glossary of Terms. Page 15 of 31 Last Updated 7/27/2005 PINNACLE WEST CAPITAL CORPORATION CONSOLIDATED STATISTICS BY QUARTER 2004 INCREASE (DECREASE) Line 1ST QTR 2ND QTR 3RD QTR 4TH QTR YEAR-TO-DATE VS PRIOR YTD ------- ------- ------- ------- ------------ ------------ MARKETING AND TRADING SEGMENT PRETAX GROSS MARGIN ANALYSIS (DOLLARS IN MILLIONS) REALIZED AND MARK-TO-MARKET COMPONENTS 43 Electricity and other commodity sales, realized (a) $ 12 $ 22 $ 13 $ 16 $ 63 $ (2) 44 Mark-to-market reversals on realized sales (b) 1 (4) (3) - (6) - 45 Change in mark-to-market value of forward sales 8 4 5 6 23 35 ---- ---- ---- ---- ---- ---- 46 Total gross margin $ 21 $ 22 $ 15 $ 22 $ 80 $ 33 ==== ==== ==== ==== ==== ==== BY PINNACLE WEST ENTITY 47 Parent company marketing and trading division $ 12 $ 11 $ 9 $ 12 $ 44 $ 49 48 APS (5) - 2 (2) (5) (13) 49 Pinnacle West Energy 10 7 - 10 27 19 50 APS Energy Services 4 4 4 2 14 (22) ---- ---- ---- ---- ---- ---- 51 Total gross margin $ 21 $ 22 $ 15 $ 22 $ 80 $ 33 ==== ==== ==== ==== ==== ==== - ---------- (a) The net effect on pretax gross margin from realization of prior-period mark-to-market included in line 43 and in line 44 is zero. Realization of prior-period mark-to-market relates to cash flow recognition, not earnings recognition. The opposites of amounts included in line 43 are included in line 44. For example, line 44 shows that a prior-period mark-to-market gain of $6 million was transferred to "realized" for the total year 2004. A $6 million realized gain is included in the $63 million on line 43 for the total year 2004. (b) Quarterly amounts do not total to the annual amounts because of intra-year mark-to-market eliminations. See Glossary of Terms. Page 16 of 31 Last Updated 7/27/2005 PINNACLE WEST CAPITAL CORPORATION CONSOLIDATED STATISTICS BY QUARTER 2004 INCREASE (DECREASE) Line 1ST QTR 2ND QTR 3RD QTR 4TH QTR YEAR-TO-DATE VS PRIOR YTD ------- ------- ------- ------- ------------ ------------ AVERAGE ELECTRIC CUSTOMERS RETAIL CUSTOMERS 52 Residential 855,754 852,594 856,353 871,575 859,069 30,703 53 Business 105,502 106,517 107,583 108,860 107,115 4,019 ------- ------- ------- ------- ------- ------- 54 Total 961,256 959,111 963,936 980,435 966,184 34,722 55 Wholesale customers 81 82 85 77 81 15 ------- ------- ------- ------- ------- ------- 56 Total customers 961,337 959,193 964,021 980,512 966,265 34,737 ======= ======= ======= ======= ======= ======= 57 Customer Growth (% over prior year) 3.4% 3.8% 3.9% 3.9% 3.7% 0.4% RETAIL SALES (GWH) - WEATHER NORMALIZED 58 Residential 2,371 2,762 4,231 2,340 11,704 825 59 Business 2,998 3,616 4,005 3,252 13,870 467 ------- ------- ------- ------- ------- ------- 60 Total 5,369 6,378 8,236 5,592 25,574 1,292 ======= ======= ======= ======= ======= ======= RETAIL USAGE (KWH/AVERAGE CUSTOMER) 61 Residential 2,816 3,193 4,704 2,717 13,418 (39) 62 Business 28,919 33,816 36,595 29,726 129,392 (1,137) RETAIL USAGE - WEATHER NORMALIZED (KWH/AVERAGE CUSTOMER) 63 Residential 2,770 3,240 4,941 2,686 13,624 491 64 Business 28,422 33,944 37,227 29,871 129,495 (511) ELECTRICITY DEMAND (MW) 65 System peak demand 3,979 5,632 6,402 4,432 6,402 70 See Glossary of Terms. Page 17 of 31 Last Updated 7/27/2005 PINNACLE WEST CAPITAL CORPORATION CONSOLIDATED STATISTICS BY QUARTER 2004 INCREASE (DECREASE) Line 1ST QTR 2ND QTR 3RD QTR 4TH QTR YEAR-TO-DATE VS PRIOR YTD ------- ------- ------- ------- ------------ ------------ ENERGY SOURCES (GWH) GENERATION PRODUCTION 66 Nuclear 2,148 1,860 2,364 1,812 8,184 (131) 67 Coal 2,887 3,035 3,417 3,327 12,666 1,300 68 Gas, oil and other 367 1,339 2,547 1,074 5,327 (764) ------ ------ ------ ------ ------ ------ 69 Total 5,402 6,234 8,328 6,213 26,177 405 ------ ------ ------ ------ ------ ------ PURCHASED POWER 70 Firm load 701 1,532 1,068 1,024 4,325 1,214 71 Marketing and trading 5,506 7,167 9,301 8,218 30,192 2,443 ------ ------ ------ ------ ------ ------ 72 Total 6,207 8,699 10,369 9,242 34,517 3,657 ------ ------ ------ ------ ------ ------ 73 Total energy sources 11,609 14,933 18,697 15,455 60,694 4,062 ====== ====== ====== ====== ====== ====== POWER PLANT PERFORMANCE CAPACITY FACTORS 74 Nuclear 88% 77% 96% 74% 84% (3)% 75 Coal 77% 81% 90% 88% 84% 8% 76 Gas, oil and other 5% 20% 38% 12% 18% (10)% 77 System average 44% 50% 64% 48% 51% (4)% GENERATION CAPACITY OUT OF SERVICE AND REPLACED FOR NATIVE LOAD (AVERAGE MW/DAY) 78 Nuclear 135 233 13 261 161 29 79 Coal 149 153 63 61 107 (163) 80 Gas 49 47 39 34 42 (163) ------ ------ ------ ------ ------ ------ 81 Total 333 433 115 356 310 (296) 82 Generation Fuel Cost ($/MWh) $11.17 $18.59 $20.73 $20.90 $18.31 $ 0.95 See Glossary of Terms. Page 18 of 31 Last Updated 7/27/2005 PINNACLE WEST CAPITAL CORPORATION CONSOLIDATED STATISTICS BY QUARTER 2004 INCREASE (DECREASE) Line 1ST QTR 2ND QTR 3RD QTR 4TH QTR YEAR-TO-DATE VS PRIOR YTD ------- ------- ------- ------ ------------ ------------- ENERGY MARKET INDICATORS (a) ELECTRICITY AVERAGE DAILY SPOT PRICES ($/MWH) ON-PEAK 83 Palo Verde $43.73 $50.36 $51.86 $51.23 $49.30 $ 0.70 84 SP15 $48.37 $54.73 $57.09 $60.62 $55.20 $ 3.82 OFF-PEAK 85 Palo Verde $33.66 $33.74 $33.37 $38.21 $34.75 $ 2.72 86 SP15 $36.90 $37.32 $37.18 $43.07 $38.62 $ 3.96 WEATHER INDICATORS ACTUAL 87 Cooling degree-days 273 1,598 2,471 352 4,694 (205) 88 Heating degree-days 552 11 - 422 985 249 89 Average humidity 39% 19% 26% 45% 32% 1% 10-YEAR AVERAGES 90 Cooling degree-days 80 1,491 2,540 420 4,531 420 91 Heating degree-days 521 36 - 415 972 415 92 Average humidity 43% 24% 33% 40% 35% 0% ECONOMIC INDICATORS BUILDING PERMITS -- METRO PHOENIX (b) 93 Single-family 10,045 13,636 14,111 10,325 48,117 8,466 94 Multi-family 1,757 1,324 2,149 2,356 7,586 859 ------ ------ ------ ------ ------ ------ 95 Total 11,802 14,960 16,260 12,681 55,703 9,325 ====== ====== ====== ====== ====== ====== ARIZONA JOB GROWTH (c) 96 Payroll job growth (% over prior year) 2.7% 3.3% 3.6% 3.9% 3.4% 2.0% 97 Unemployment rate (%, seasonally adjusted) 5.2% 5.1% 4.9% 4.6% 5.0% (0.7)% - -------------------- Sources: (a) This price is an average of daily prices obtained and used with permission from Dow Jones & Company, Inc. (b) Arizona Real Estate Center, Arizona State University W.P. Carey College of Business (c) Arizona Department of Economic Security See Glossary of Terms. Page 19 of 31