The WACC of ONE Gas Inc (OGS) is 6.0%.
| Range | Selected | |
| Cost of equity | 6.60% - 8.70% | 7.65% |
| Tax rate | 16.90% - 17.40% | 17.15% |
| Cost of debt | 4.00% - 5.80% | 4.90% |
| WACC | 5.2% - 6.9% | 6.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.59 | 0.67 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.60% | 8.70% |
| Tax rate | 16.90% | 17.40% |
| Debt/Equity ratio | 0.79 | 0.79 |
| Cost of debt | 4.00% | 5.80% |
| After-tax WACC | 5.2% | 6.9% |
| Selected WACC | 6.0% | |