The WACC of Marathon Oil Corp (MRO) is 8.0%.
| Range | Selected | |
| Cost of equity | 7.80% - 10.70% | 9.25% |
| Tax rate | 5.20% - 10.90% | 8.05% |
| Cost of debt | 4.80% - 4.90% | 4.85% |
| WACC | 6.9% - 9.0% | 8.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.86 | 1.05 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.80% | 10.70% |
| Tax rate | 5.20% | 10.90% |
| Debt/Equity ratio | 0.36 | 0.36 |
| Cost of debt | 4.80% | 4.90% |
| After-tax WACC | 6.9% | 9.0% |
| Selected WACC | 8.0% | |