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Condensed Consolidated Statements Of Income (USD $) In Millions, except Share data in Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Utility: |  |  |  |
Electric | $ 612.1 | $ 612.6 | $ 1,245.3 | $ 1,185.0
Gas | 73.4 | 50.0 | 270.7 | 217.1
Other | 17.8 | 13.8 | 35.0 | 27.5
Non-regulated | 14.7 | 13.9 | 26.6 | 26.4
Total operating revenues | 718.0 | 690.3 | 1,577.6 | 1,456.0
Utility: |  |  |  |
Electric production fuel and energy purchases | 158.0 | 168.9 | 337.1 | 328.8
Purchased electric capacity | 52.0 | 70.7 | 109.0 | 132.2
Electric transmission service | 99.6 | 79.4 | 203.3 | 160.8
Cost of gas sold | 38.9 | 18.6 | 166.9 | 123.4
Other operation and maintenance | 147.2 | 137.9 | 297.4 | 287.9
Non-regulated operation and maintenance | 3.1 | 0.7 | 5.3 | 4.9
Depreciation and amortization | 92.7 | 80.8 | 185.3 | 163.8
Taxes other than income taxes | 23.3 | 24.5 | 49.4 | 49.8
Total operating expenses | 614.8 | 581.5 | 1,353.7 | 1,251.6
Operating income | 103.2 | 108.8 | 223.9 | 204.4
Interest expense and other: |  |  |  |
Interest expense | 42.5 | 38.6 | 85.1 | 77.5
Equity income from unconsolidated investments, net | (10.9) | (10.6) | (21.6) | (20.0)
Allowance for funds used during construction | (7.0) | (4.8) | (12.6) | (8.6)
Interest income and other | (0.3) | (0.6) | (1.1) | (1.7)
Total interest expense and other | 24.3 | 22.6 | 49.8 | 47.2
Income from continuing operations before income taxes | 78.9 | 86.2 | 174.1 | 157.2
Income tax expense (benefit) | 10.5 | 16.8 | 22.6 | 44.5
Income from continuing operations, net of tax | 68.4 | 69.4 | 151.5 | 112.7
Income (loss) from discontinued operations, net of tax | (0.6) | 0.4 | (3.6) | (4.0)
Net income (loss) | 67.8 | 69.8 | 147.9 | 108.7
Preferred dividend requirements of subsidiaries | 2.5 | 3.9 | 12.7 | 7.9
Net income (loss) attributable to common shareowners | 65.3 | 65.9 | 135.2 | 100.8
Weighted average number of common shares outstanding (basic) (000s) (in shares) | 110,776 | 110,756 | 110,772 | 110,736
Weighted average number of common shares outstanding (diluted) (000s) (in shares) | 110,780 | 110,769 | 110,778 | 110,755
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted): |  |  |  |
Income from continuing operations, net of tax (in dollars per share) | $ 0.59 | $ 0.60 | $ 1.25 | $ 0.95
Income (loss) from discontinued operations, net of tax (in dollars per share) | $ 0.00 | $ 0.00 | $ (0.03) | $ (0.04)
Net income (in dollars per share) | $ 0.59 | $ 0.60 | $ 1.22 | $ 0.91
Amounts attributable to common shareowners: |  |  |  |
Income from continuing operations, net of tax | 65.9 | 65.5 | 138.8 | 104.8
Income (loss) from discontinued operations, net of tax | (0.6) | 0.4 | (3.6) | (4.0)
Net income (loss) attributable to common shareowners | 65.3 | 65.9 | 135.2 | 100.8
Dividends declared per common share (in dollars per share) | $ 0.47 | $ 0.45 | $ 0.94 | $ 0.90
IPL [Member] |  |  |  |
Utility: |  |  |  |
Electric | 329.6 | 321.0 | 679.8 | 614.1
Gas | 42.0 | 26.8 | 156.3 | 119.6
Other | 11.8 | 12.9 | 25.2 | 25.7
Total operating revenues | 383.4 | 360.7 | 861.3 | 759.4
Utility: |  |  |  |
Electric production fuel and energy purchases | 74.9 | 82.0 | 171.6 | 156.1
Purchased electric capacity | 36.2 | 36.0 | 77.6 | 77.0
Electric transmission service | 71.4 | 52.9 | 146.0 | 108.4
Cost of gas sold | 21.8 | 10.3 | 93.9 | 67.6
Other operation and maintenance | 83.2 | 83.8 | 173.7 | 170.7
Depreciation and amortization | 47.6 | 47.1 | 95.2 | 93.8
Taxes other than income taxes | 13.6 | 13.2 | 27.5 | 26.5
Total operating expenses | 348.7 | 325.3 | 785.5 | 700.1
Operating income | 34.7 | 35.4 | 75.8 | 59.3
Interest expense and other: |  |  |  |
Interest expense | 19.7 | 19.6 | 39.3 | 39.3
Allowance for funds used during construction | (4.7) | (1.7) | (8.5) | (3.2)
Interest income and other | (0.1) | 0 | (0.2) | (0.2)
Total interest expense and other | 14.9 | 17.9 | 30.6 | 35.9
Income from continuing operations before income taxes | 19.8 | 17.5 | 45.2 | 23.4
Income tax expense (benefit) | (4.9) | (2.1) | (11.0) | 5.3
Net income (loss) | 24.7 | 19.6 | 56.2 | 18.1
Preferred dividend requirements of subsidiaries | 2.5 | 3.0 | 11.1 | 6.2
Net income (loss) attributable to common shareowners | 22.2 | 16.6 | 45.1 | 11.9
Amounts attributable to common shareowners: |  |  |  |
Net income (loss) attributable to common shareowners | 22.2 | 16.6 | 45.1 | 11.9
WPL [Member] |  |  |  |
Utility: |  |  |  |
Electric | 282.5 | 291.6 | 565.5 | 570.9
Gas | 31.4 | 23.2 | 114.4 | 97.5
Other | 6.0 | 0.9 | 9.8 | 1.8
Total operating revenues | 319.9 | 315.7 | 689.7 | 670.2
Utility: |  |  |  |
Electric production fuel and energy purchases | 83.1 | 86.9 | 165.5 | 172.7
Purchased electric capacity | 15.8 | 34.7 | 31.4 | 55.2
Electric transmission service | 28.2 | 26.5 | 57.3 | 52.4
Cost of gas sold | 17.1 | 8.3 | 73.0 | 55.8
Other operation and maintenance | 64.0 | 54.1 | 123.7 | 117.2
Depreciation and amortization | 43.2 | 33.2 | 86.3 | 69.0
Taxes other than income taxes | 8.8 | 10.5 | 20.1 | 21.8
Total operating expenses | 260.2 | 254.2 | 557.3 | 544.1
Operating income | 59.7 | 61.5 | 132.4 | 126.1
Interest expense and other: |  |  |  |
Interest expense | 21.3 | 19.9 | 42.6 | 39.9
Equity income from unconsolidated investments, net | (10.8) | (10.6) | (21.6) | (20.7)
Allowance for funds used during construction | (2.3) | (3.1) | (4.1) | (5.4)
Interest income and other | 0.1 | 0.1 | 0 | 0
Total interest expense and other | 8.3 | 6.3 | 16.9 | 13.8
Income from continuing operations before income taxes | 51.4 | 55.2 | 115.5 | 112.3
Income tax expense (benefit) | 17.0 | 19.1 | 37.5 | 44.3
Net income (loss) | 34.4 | 36.1 | 78.0 | 68.0
Preferred dividend requirements of subsidiaries | 0 | 0.9 | 1.6 | 1.7
Net income (loss) attributable to common shareowners | 34.4 | 35.2 | 76.4 | 66.3
Amounts attributable to common shareowners: |  |  |  |
Net income (loss) attributable to common shareowners | $ 34.4 | $ 35.2 | $ 76.4 | $ 66.3

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