| Revenue | — | — | — | — | — |
| Revenue recognised from contracts with customers | — | — | — | — | — |
| Oil and gas sales | 355.62a | 327.87a | -53.09a | -25.51a | |
| Marketing revenues | 55.14a | 79.31a | 141.68a | 70.31a | |
| Other revenue | 9.75a | 9.43a | | | |
| Expenses | — | — | — | — | — |
| Operating expenses | -38.23a | -34.8a | | | |
| Taxes other than income tax | -20.28a | -24.33a | | | |
| Exploration expenses | -13.86a | -13.72a | | | |
| Depreciation, depletion and amortisation | -74.61a | -68.95a | | | |
| Special oil gain levy | -8.3a | -9.52a | | | |
| Impairment and provision recognised, net | -8.05a | -3.52a | | | |
| Expected credit losses | -0.03a | -0.07a | | | |
| Crude oil and product purchases | -50.04a | -73.95a | | | |
| Selling and administrative expenses | -11.14a | -10.95a | | | |
| Others | -11.28a | -9.03a | | | |
| Profit from operating activities | 184.71a | 167.77a | | | |
| Interest income | 4.58a | 4.81a | | | |
| Finance costs | -6.1a | -5.35a | | | |
| Exchange losses, net | -1.32a | -0.3a | | | |
| Investment income | 5.26a | 3.08a | | | |
| Share of profits of associates | 0.76a | 0.85a | | | |
| Share of profits of a joint venture | 1.08a | 1.08a | | | |
| Other income, net | 1.01a | 1.04a | | | |
| Profit before tax | 189.98a | 172.97a | | | |
| Income tax expense | -51.99a | -48.88a | | | |
| Profit for the year | 137.98a | 124.09a | | | |
| Attributable to | — | — | — | — | — |
| Equity shareholders of the company | 137.94a | 123.84a | | | |
| Non-controlling interests | 0.05a | 0.25a | | | |
| Total revenues | 420.51a | 416.61a | 422.23a | 246.11a | 155.37a |
| Total expenses | -235.8a | -248.84a | -228.91a | -150.13a | -118.98a |
| (Finance costs)/interest income, net | -1.51a | -0.55a | -3.05a | -4.68a | -4.72a |
| Share of profits/(losses) of associates and a joint venture | 1.84a | 1.93a | 1.91a | 0.35a | -0.63a |
| Investment income | | | | | 2.98a |
| Profit before tax | | | | | 34.91a |
| Income tax expense | | | | | -9.95a |
| Profit for the year | | | | | 24.96a |