The WACC of Tullow Oil PLC (TLW.L) is 8.4%.
| Range | Selected | |
| Cost of equity | 25.10% - 46.00% | 35.55% |
| Tax rate | 19.00% - 19.00% | 19.00% |
| Cost of debt | 5.70% - 5.80% | 5.75% |
| WACC | 7.1% - 9.7% | 8.4% |
| Category | Low | High |
| Long-term bond rate | 4.0% | 4.5% |
| Equity market risk premium | 6.0% | 7.0% |
| Adjusted beta | 3.53 | 5.87 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 25.10% | 46.00% |
| Tax rate | 19.00% | 19.00% |
| Debt/Equity ratio | 7.38 | 7.38 |
| Cost of debt | 5.70% | 5.80% |
| After-tax WACC | 7.1% | 9.7% |
| Selected WACC | 8.4% | |