v3.26.1
Revenue from contracts with customers - National and foreign sales (Details) - COP ($)
$ in Billions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Revenue from contracts with customers      
Sales $ 119,694 $ 133,330 $ 143,189
Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 58,038 62,656 71,744
Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 61,656 70,674 71,445
Mid-distillates | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 26,792 28,672 32,606
Gasoline and turbo fuels | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 16,044 17,804 23,129
Gasoline and turbo fuels | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 70 360 193
Natural gas | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 3,439 4,096 4,358
Natural gas | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 102 46 105
Services | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 3,301 3,877 3,233
Energy transmission services | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 3,266 3,226 2,770
Energy transmission services | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 5,269 6,134 5,667
Fuel gas Service | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 1,363 1,083 989
Asphalts | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 912 794 938
Plastic and rubber | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 872 920 1,225
Plastic and rubber | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 1,229 1,231 1,394
L.P.G. and propane | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 512 631 762
L.P.G. and propane | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 501 347 302
Roads and construction services | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 368 330 350
Roads and construction services | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 6,402 5,465 4,761
Polyethylene | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 304 329 314
Aromatics | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 160 247 298
Fuel oil | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 23 21 36
Fuel oil | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 3,491 3,920 4,029
Crude oil | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods     128
Crude oil | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 40,324 48,805 49,560
Other products | Local sales      
Revenue from contracts with customers      
Revenue from sale of goods 682 626 608
Other products | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 3,160 3,508 1,805
Diesel | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods 696 1,203 4,097
Cash flow hedging | Foreign sales      
Revenue from contracts with customers      
Revenue from sale of goods $ 412 $ (345) $ (468)