The WACC of Marathon Oil Corp (MRO) is 9.1%.
| Range | Selected | |
| Cost of equity | 8.60% - 12.70% | 10.65% |
| Tax rate | 5.20% - 10.90% | 8.05% |
| Cost of debt | 4.80% - 4.80% | 4.80% |
| WACC | 7.6% - 10.6% | 9.1% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.03 | 1.4 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.60% | 12.70% |
| Tax rate | 5.20% | 10.90% |
| Debt/Equity ratio | 0.34 | 0.34 |
| Cost of debt | 4.80% | 4.80% |
| After-tax WACC | 7.6% | 10.6% |
| Selected WACC | 9.1% | |