Provisions for Sundry Creditors - Summary of Allowance Account for Plugging of Wells, Trials in Progress and Environmental Costs (Detail) - MXN ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Allowance account for plugging of wells | |||
| Balance at the beginning of the year | $ 115,514,750 | $ 61,117,106 | $ 66,699,388 |
| Increase (decrease) capitalized in fixed assets | 17,374,573 | 34,738,841 | (920,616) |
| Unwinding of discount against income | 7,816,800 | 9,126,600 | 4,638,600 |
| Unrealized foreign exchange loss (gains) | (13,109,300) | 12,013,300 | (8,475,320) |
| Amount used | (988,465) | (1,481,097) | (824,946) |
| Balance at the end of the year | 126,608,358 | 115,514,750 | 61,117,106 |
| Allowance account for trials in progress | |||
| Balance at the beginning of the year | 13,186,811 | 12,436,092 | 10,533,137 |
| Additions against expenses | 18,482,359 | 6,680,867 | 6,684,626 |
| Provision cancellation | (17,939,697) | (6,115,426) | (4,901,474) |
| Amount used | (304,870) | 185,278 | 119,803 |
| Balance at the end of the year | 13,424,603 | 13,186,811 | 12,436,092 |
| Allowance costs for environmental costs | |||
| Balance at the beginning of the year | 9,134,000 | 9,757,356 | 11,914,160 |
| Additions against expenses | 4,592,195 | 1,654,921 | 487,036 |
| Cancellation against expenses | (804,115) | (2,128,943) | (2,613,047) |
| Amount used | (138,359) | (149,334) | (30,793) |
| Balance at the end of the year | $ 12,783,721 | $ 9,134,000 | $ 9,757,356 |