Colombia's oil production fell to 747,171 barrels per day in December 2025, down from 998,740 barrels a decade earlier, amid rising violence and tax hikes. In contrast, Argentina's Vaca Muerta shale production surged to 593,488 barrels per day, making it the fourth-largest oil producer in South America. Guyana's output reached 913,550 barrels per day, driven by significant offshore discoveries.
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