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Financial and derivative instruments - Summary of net notional long/(short) position of derivative instruments (Detail) - bbl bbl in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Crude Oil | Long |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | 4,374 | 4,260
Products | Short |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, volume | 1,153 | 371

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