The WACC of Cairn Energy PLC (CNE.L) is 6.4%.
| Range | Selected | |
| Cost of equity | 6.10% - 8.30% | 7.20% |
| Tax rate | 0.40% - 9.00% | 4.70% |
| Cost of debt | 5.00% - 5.00% | 5.00% |
| WACC | 5.7% - 7.0% | 6.4% |
| Category | Low | High |
| Long-term bond rate | 4.0% | 4.5% |
| Equity market risk premium | 6.0% | 7.0% |
| Adjusted beta | 0.35 | 0.47 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.10% | 8.30% |
| Tax rate | 0.40% | 9.00% |
| Debt/Equity ratio | 0.52 | 0.52 |
| Cost of debt | 5.00% | 5.00% |
| After-tax WACC | 5.7% | 7.0% |
| Selected WACC | 6.4% | |