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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
OPERATING REVENUES (NOTE 2) | $ 661,930 | $ 740,530
OPERATING EXPENSES |  |
Fuel and purchased power | 188,521 | 230,588
Operations and maintenance | 221,318 | 245,634
Depreciation and amortization | 154,079 | 148,707
Taxes other than income taxes | 56,768 | 55,090
Other expenses | 822 | 427
Total | 621,508 | 680,446
OPERATING INCOME | 40,422 | 60,084
OTHER INCOME (DEDUCTIONS) |  |
Allowance for equity funds used during construction | 7,697 | 11,188
Pension and other postretirement non-service credits - net | 13,911 | 5,114
Other income (Note 9) | 12,569 | 7,169
Other expense (Note 9) | (4,784) | (4,358)
Total | 29,393 | 19,113
INTEREST EXPENSE |  |
Interest charges | 59,234 | 60,653
Allowance for borrowed funds used during construction | (4,076) | (6,665)
Total | 55,158 | 53,988
INCOME BEFORE INCOME TAXES | 14,657 | 25,209
INCOME TAXES | (20,209) | 2,418
NET INCOME | 34,866 | 22,791
Less: Net income attributable to noncontrolling interests (Note 6) | 4,873 | 4,873
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | $ 29,993 | $ 17,918
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING |  |
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC (in shares) | 112,594 | 112,337
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - DILUTED (in shares) | 112,862 | 112,735
EARNINGS PER WEIGHTED-AVERAGE COMMON SHARE OUTSTANDING |  |
Net income attributable to common shareholders - basic (in dollars per share) | $ 0.27 | $ 0.16
Net income attributable to common shareholders - diluted (in dollars per share) | $ 0.27 | $ 0.16
APS |  |
OPERATING REVENUES (NOTE 2) | $ 661,930 | $ 740,530
OPERATING EXPENSES |  |
Fuel and purchased power | 188,521 | 230,588
Operations and maintenance | 218,265 | 240,375
Depreciation and amortization | 154,058 | 148,685
Taxes other than income taxes | 56,758 | 55,078
Other expenses | 822 | 427
Total | 618,424 | 675,153
OPERATING INCOME | 43,506 | 65,377
OTHER INCOME (DEDUCTIONS) |  |
Allowance for equity funds used during construction | 7,697 | 11,188
Pension and other postretirement non-service credits - net | 14,262 | 5,499
Other income (Note 9) | 11,633 | 6,416
Other expense (Note 9) | (4,668) | (3,878)
Total | 28,924 | 19,225
INTEREST EXPENSE |  |
Interest charges | 55,736 | 56,665
Allowance for borrowed funds used during construction | (4,076) | (6,665)
Total | 51,660 | 50,000
INCOME BEFORE INCOME TAXES | 20,770 | 34,602
INCOME TAXES | (19,448) | 1,453
NET INCOME | 40,218 | 33,149
Less: Net income attributable to noncontrolling interests (Note 6) | 4,873 | 4,873
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS | $ 35,345 | $ 28,276

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