v3.26.1
Wells, Pipelines, Properties, Plant and Equipment, Net - Summary of Values in Use for CGU Impairment or Reversal (Pemex Exploration and Production) (Detail) - Exploration and Extraction (formerly Pemex Exploration and Production) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total $ 742,160,818 $ 376,490,172 $ 260,366,967
Ku Maloob Zaap      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 425,844,565 0 0
Aceite Terciario del Golfo      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 101,518,822 62,598,697 27,318,209
Cantarell      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 44,789,042 18,829,360 19,852,385
Tsimin Xux      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 42,775,429 39,802,960 26,234,797
Crudo Ligero Marino      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 38,895,336 42,175,410 34,288,720
Antonio J. Bermúdez      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 29,914,562 32,097,908 23,434,323
Ogarrio Magallanes      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 25,427,921 32,727,984 27,794,137
Tamaulipas Constituciones      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 14,718,626 14,610,722 4,799,796
Poza Rica      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 9,788,364 10,324,802 6,089,496
Lakach      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 3,552,966 4,874,349 0
Arenque      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 1,741,253 7,804,677 2,629,121
Ayin-Alux      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 1,694,722 750,222 0
Santuario CEE      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 1,499,210 0 0
Chuc      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 82,745,798 58,954,530
Ixtal - Manik      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 23,891,174 14,311,152
Cuenca de Macuspana      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 1,996,655 612,773
Burgos      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 1,259,454 2,611,157
Ébano (CEE)      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 0 4,690,690
Santuario El Golpe      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 0 3,640,552
Cárdenas-Mora      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total $ 0 $ 0 $ 3,105,129