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Derivative Instruments - Fair value (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Fair value of derivative instruments |  |
Current portion of fair value of derivative assets | $ 358 | $ 1,050
Noncurrent portion of fair value of derivative assets | 778 | 1,296
Current portion of fair value of derivative liabilities | 84,054 | 31,792
Noncurrent portion of fair value of derivative liabilities | 24,416 | 17,233
Derivatives not designated as hedges for accounting purposes |  |
Fair value of derivative instruments |  |
Total asset derivatives | 1,136 | 2,346
Total liability derivatives | 108,470 | 49,025
Net derivatives liability | (107,334) | (46,679)
Derivatives not designated as hedges for accounting purposes | Commodity derivatives |  |
Fair value of derivative instruments |  |
Current portion of fair value of derivative liabilities | 84,054 | 31,792
Noncurrent portion of fair value of derivative liabilities | 24,416 | 17,233
Derivatives not designated as hedges for accounting purposes | Commodity derivatives | VIE, Martica |  |
Fair value of derivative instruments |  |
Current portion of fair value of derivative liabilities |  | 2,000
Derivatives not designated as hedges for accounting purposes | Embedded derivatives |  |
Fair value of derivative instruments |  |
Current portion of fair value of derivative assets | 358 | 1,050
Noncurrent portion of fair value of derivative assets | $ 778 | $ 1,296

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