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Supplemental information on oil and gas producing activities (unaudited) - Results of operations for oil and gas exploration and production activities (Details) - COP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Net revenues      
Sales $ 67,410,322 $ 66,258,193 $ 71,223,307
Transfers 13,677,202 15,256,723 19,797,158
Total 81,087,524 81,514,916 91,020,465
Production costs 21,568,517 20,544,682 22,152,495
Depreciation, depletion, and amortization 10,356,534 8,531,483 7,138,902
Other production costs 22,937,996 22,751,720 20,741,550
Exploration costs 1,769,785 2,088,922 1,512,385
Other expenses 3,635,945 7,508,085 5,399,726
Total 60,268,777 61,424,892 56,945,058
Income before income tax expense 20,818,747 20,090,024 34,075,407
Income tax expense (9,627,028) (9,250,450) (13,026,271)
Results of operations for exploration and production activities $ 11,191,719 $ 10,839,574 $ 21,049,136