Financial and derivative instruments - Summary of net notional long/(short) position of derivative instruments (Detail) - bbl bbl in Thousands |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Crude Oil | Short | ||
| Derivative [Line Items] | ||
| Derivative, nonmonetary notional amount, volume | 1,284 | |
| Crude Oil | Long | ||
| Derivative [Line Items] | ||
| Derivative, nonmonetary notional amount, volume | 4,260 | |
| Products | Short | ||
| Derivative [Line Items] | ||
| Derivative, nonmonetary notional amount, volume | 1,170 | 371 |