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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
OPERATING REVENUES | $ 974,123 | $ 944,587 | $ 1,666,837 | $ 1,622,315
OPERATING EXPENSES |  |  |  |
Fuel and purchased power | 257,087 | 254,611 | 454,197 | 467,006
Operations and maintenance | 268,397 | 220,985 | 534,079 | 447,056
Depreciation and amortization | 145,436 | 125,739 | 290,261 | 253,366
Taxes other than income taxes | 53,607 | 44,289 | 107,207 | 88,125
Other expenses | 7,434 | 1,706 | 7,597 | 2,094
Total | 731,961 | 647,330 | 1,393,341 | 1,257,647
OPERATING INCOME | 242,162 | 297,257 | 273,496 | 364,668
OTHER INCOME (DEDUCTIONS) |  |  |  |
Allowance for equity funds used during construction | 13,073 | 10,456 | 27,152 | 19,938
Pension and other postretirement non-service credits - net | 12,006 | 6,972 | 24,865 | 13,067
Other income (Note 9) | 6,598 | 484 | 10,583 | 964
Other expense (Note 9) | (3,771) | (3,822) | (7,000) | (7,502)
Total | 27,906 | 14,090 | 55,600 | 26,467
INTEREST EXPENSE |  |  |  |
Interest charges | 60,708 | 54,969 | 119,662 | 106,833
Allowance for borrowed funds used during construction | (6,291) | (4,906) | (13,046) | (9,378)
Total | 54,417 | 50,063 | 106,616 | 97,455
INCOME BEFORE INCOME TAXES | 215,651 | 261,284 | 222,480 | 293,680
INCOME TAXES | 44,039 | 88,967 | 42,774 | 93,178
NET INCOME | 171,612 | 172,317 | 179,706 | 200,502
Less: Net income attributable to noncontrolling interests (Note 6) | 4,874 | 4,874 | 9,747 | 9,747
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | $ 166,738 | $ 167,443 | $ 169,959 | $ 190,755
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING |  |  |  |
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC (in shares) | 112,115 | 111,797 | 112,067 | 111,763
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - DILUTED (in shares) | 112,471 | 112,345 | 112,482 | 112,270
EARNINGS PER WEIGHTED-AVERAGE COMMON SHARE OUTSTANDING |  |  |  |
Net income attributable to common shareholders - basic (in dollars per share) | $ 1.49 | $ 1.50 | $ 1.52 | $ 1.71
Net income attributable to common shareholders - diluted (in dollars per share) | 1.48 | 1.49 | 1.51 | 1.70
DIVIDENDS DECLARED PER SHARE (in dollars per share) | $ 1.39 | $ 1.31 | $ 1.39 | $ 1.31
APS |  |  |  |
OPERATING REVENUES | $ 971,963 | $ 943,406 | $ 1,663,969 | $ 1,620,995
OPERATING EXPENSES |  |  |  |
Fuel and purchased power | 270,138 | 259,892 | 472,148 | 476,995
Operations and maintenance | 251,999 | 215,775 | 506,600 | 434,783
Depreciation and amortization | 144,533 | 125,317 | 288,645 | 252,524
Taxes other than income taxes | 53,269 | 44,016 | 106,511 | 87,580
Other expenses | 434 | 1,706 | 597 | 2,142
Total | 720,373 | 646,706 | 1,374,501 | 1,254,024
OPERATING INCOME | 251,590 | 296,700 | 289,468 | 366,971
OTHER INCOME (DEDUCTIONS) |  |  |  |
Allowance for equity funds used during construction | 13,073 | 10,456 | 27,152 | 19,938
Pension and other postretirement non-service credits - net | 12,389 | 6,911 | 25,586 | 12,953
Other income (Note 9) | 6,235 | 352 | 10,007 | 694
Other expense (Note 9) | (3,372) | (3,301) | (6,318) | (6,429)
Total | 28,325 | 14,418 | 56,427 | 27,156
INTEREST EXPENSE |  |  |  |
Interest charges | 57,731 | 53,517 | 113,889 | 104,313
Allowance for borrowed funds used during construction | (6,291) | (4,906) | (13,046) | (9,378)
Total | 51,440 | 48,611 | 100,843 | 94,935
INCOME BEFORE INCOME TAXES | 228,475 | 262,507 | 245,052 | 299,192
INCOME TAXES | 45,776 | 88,525 | 47,882 | 97,175
NET INCOME | 182,699 | 173,982 | 197,170 | 202,017
Less: Net income attributable to noncontrolling interests (Note 6) | 4,874 | 4,874 | 9,747 | 9,747
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | $ 177,825 | $ 169,108 | $ 187,423 | $ 192,270

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