The WACC of Marathon Oil Corp (MRO) is 7.6%.
| Range | Selected | |
| Cost of equity | 7.30% - 10.00% | 8.65% |
| Tax rate | 5.20% - 10.90% | 8.05% |
| Cost of debt | 4.80% - 5.20% | 5.00% |
| WACC | 6.6% - 8.7% | 7.6% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.74 | 0.92 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.30% | 10.00% |
| Tax rate | 5.20% | 10.90% |
| Debt/Equity ratio | 0.34 | 0.34 |
| Cost of debt | 4.80% | 5.20% |
| After-tax WACC | 6.6% | 8.7% |
| Selected WACC | 7.6% | |