The WACC of MDU Resources Group Inc (MDU) is 6.1%.
| Range | Selected | |
| Cost of equity | 6.40% - 8.60% | 7.50% |
| Tax rate | 17.00% - 18.30% | 17.65% |
| Cost of debt | 4.00% - 4.90% | 4.45% |
| WACC | 5.2% - 6.9% | 6.1% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.54 | 0.67 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.40% | 8.60% |
| Tax rate | 17.00% | 18.30% |
| Debt/Equity ratio | 0.6 | 0.6 |
| Cost of debt | 4.00% | 4.90% |
| After-tax WACC | 5.2% | 6.9% |
| Selected WACC | 6.1% | |