| Operating revenues | — | — | — |
| Utility | 1,018.48a | 1,011.28a | 1,127.42a |
| Nonutility | 778.06a | 951.71a | 1,778.56a |
| Total operating revenues | 1,796.54a | 1,962.99a | 2,905.98a |
| Operating expenses | — | — | — |
| Natural gas purchases | — | — | — |
| Utility | -405.33a | -416.16a | -547.9a |
| Nonutility | -304.43a | -555.58a | -1,393.66a |
| Related parties | -7.15a | -7.21a | -7.4a |
| Operation and maintenance | -394.64a | -373.57a | -361.87a |
| Regulatory rider expenses | -60.33a | -50.54a | -59.44a |
| Depreciation and amortization | -166.57a | -152.94a | -129.25a |
| Total operating expenses | -1,338.44a | -1,555.99a | -2,499.5a |
| Operating income | 458.1a | 407a | 406.48a |
| Other income, net | 41.55a | 26.08a | 22.3a |
| Interest expense, net of capitalized interest | -130.28a | -123.01a | -85.83a |
| Income before income taxes and equity in earnings of affiliates | 369.38a | 310.07a | 342.94a |
| Income tax provision | -84.91a | -49.28a | -76.2a |
| Equity in earnings of affiliates | 5.3a | 3.93a | 8.18a |
| Net income | 289.78a | 264.72a | 274.92a |