The WACC of ONE Gas Inc (OGS) is 5.8%.
| Range | Selected | |
| Cost of equity | 6.20% - 8.20% | 7.20% |
| Tax rate | 16.90% - 17.40% | 17.15% |
| Cost of debt | 4.00% - 5.60% | 4.80% |
| WACC | 5.0% - 6.6% | 5.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.52 | 0.59 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.20% | 8.20% |
| Tax rate | 16.90% | 17.40% |
| Debt/Equity ratio | 0.78 | 0.78 |
| Cost of debt | 4.00% | 5.60% |
| After-tax WACC | 5.0% | 6.6% |
| Selected WACC | 5.8% | |