| Operating revenues: | |
| Gross operating revenues | |
| Less: Cost of sales | -142.36M |
| Revenue taxes | |
| Net operating revenues | |
| Operating expenses: | |
| Operations and maintenance | |
| General taxes | |
| Depreciation and amortization | |
| Total operating expenses | |
| Income from operations | |
| Other income and expense - net | |
| Interest expense - net | |
| Income before income taxes | |
| Income tax expense | |
| Net income | |
| Average common shares outstanding: | |
| Basic | |
| Diluted | |
| Earnings per share of common stock: | |
| Earnings per share of common stock - basic | |
| Earnings per share of common stock - diluted | |
| Dividends declared per share of common stock | |