Employee Benefits (Tables)
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12 Months Ended |
Dec. 31, 2025 |
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| Disclosure of defined benefit plans [abstract] |
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| Summary of Amounts Associated with PEMEX's Labor Obligations |
The following table shows the amounts associated with PEMEX’s labor obligations: | | | | | | | | | | December 31, | | 2025 | 2024 | | Liability for defined benefits at retirement and post-employment at the end of the year | Ps. | 1,457,536,764 | | Ps. | 1,220,486,347 | | | Liability for other long-term benefits | 12,522,799 | | 12,103,548 | | | Total liability for defined benefits recognized in the consolidated statement of financial position at the end of the year | Ps. | 1,470,059,563 | | Ps. | 1,232,589,895 | |
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| Summary of Amounts Recognized for Long-term Obligations |
The following tables contain detailed information regarding PEMEX’s retirement and post-employment benefits: | | | | | | | | | | December 31, | | Changes in the liability for defined benefits | 2025 | 2024 | | Liability for defined benefits at the beginning of the year | Ps. | 1,220,486,347 | | Ps. | 1,360,042,062 | | | Current Service cost | 25,203,473 | | 23,112,133 | | | | | | Net interest | 132,307,251 | | 123,384,081 | | | Liquidation event loss | (34,854) | | — | | | Defined benefits paid by the fund | (7,414,866) | | (7,910,227) | | | Actuarial losses (gains) in other comprehensive results due to: | | | Change in financial assumptions (1) | 184,295,367 | | (253,363,361) | | Change in demographic assumptions (1) | 3,949,508 | | 15,407,718 | | For experience during the year (1) | (13,045,339) | | 42,539,216 | | Assets of the plan during the year (1) | (361,843) | | 451,875 | | | | | | Contributions paid to the fund | (87,848,280) | | (83,177,150) | | | Defined benefit liabilities at end of year | Ps. | 1,457,536,764 | | Ps. | 1,220,486,347 | |
(1)The amount of actuarial losses corresponding to retirement and post-employment benefits recognized in other comprehensive income net for Ps.(173,640,083) generated in the period from January to December 2025 correspond to the decrease in the discount rate from 11.28% in 2024 to 9.95% in 2025 as well as the changes in obligations for movements in the population, age, seniority, salary, pensions and benefits. In 2024, as a result of the review of actuarial assumptions, the assumptions related to family composition and the type of pension arising from the death of retirees, salary increases and promotions, as well as the probability of retirement of active personnel, were updated. The impact of these changes was considered in the final figures. | | | | | | | | | | December 31, | | Changes in pension plan assets | 2025 | 2024 | | Plan assets at the beginning of year | Ps. | 2,193,747 | | Ps. | 2,176,432 | | | Return on plan assets | 58,009 | | 194,602 | | | Payments by the pension fund | (85,713,034) | | (82,848,765) | | | Company contributions to the fund | 87,848,280 | | 83,177,150 | | | Actuarial (gains) losses in plan assets | 361,843 | | (451,875) | | Adjustment to the Defined Contribution Plan (1) | 1,508 | | (53,797) | | | Pension plan assets at the end of year | Ps. | 4,750,353 | | Ps. | 2,193,747 | |
(1) The concepts come from the valuation of PMI´s liabilities. The amounts recognized for other long-term obligations are as follows: | | | | | | | | | | December 31, | | Change in the liability for defined benefits | 2025 | 2024 | | Liabilities for defined benefits at the beginning of year | Ps. | 12,103,548 | | Ps. | 12,417,151 | | | Charge to income for the year | 2,605,582 | | 2,853,364 | | | Actuarial losses (gains) recognized in income due to: | | | | Change in financial assumptions | 1,670,146 | | (3,008,011) | | | Change in demographic assumptions | (83,489) | | 1,536,223 | | | For experience during the year | (3,772,988) | | (1,695,179) | | | | | | Liabilities for defined benefits at the end of year | Ps. | 12,522,799 | | Ps. | 12,103,548 | |
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| Summary of Amounts and Types of Plan Assets |
As of December 31, 2025 and 2024, the amounts and types of plan assets are as follows: | | | | | | | | | | December 31, | | Plan Assets | 2025 | 2024 | | Cash and cash equivalents | Ps. | 2,506,395 | | Ps. | 113,020 | | | Debt instruments | 2,243,958 | | 2,080,727 | | | Total plan assets | Ps. | 4,750,353 | | Ps. | 2,193,747 | |
| | | | | | | | | | December 31, | | Changes in Defined Benefit Obligations (DBO) | 2025 | 2024 | | Defined benefit obligations at the beginning of the year | Ps. | 1,222,680,092 | | Ps. | 1,362,164,696 | | | Service costs | 12,244,394 | | 15,122,465 | | | Financing costs | 132,434,039 | | 123,578,683 | | | Past service costs | 12,890,300 | | 7,989,668 | | | Payments by the fund | (93,127,900) | | (90,758,993) | | | Amount of actuarial (losses) gains recognized in other comprehensive results due to: | | | Change in financial assumptions (1) | 184,295,367 | | (253,363,361) | | Change in demographic assumptions (2) | 3,949,508 | | 15,407,718 | | For experience during the year (3) | (13,045,339) | | 42,539,216 | | | Reductions | (33,344) | | — | | | | | | Defined benefit obligations at the end of year | Ps. | 1,462,287,117 | | Ps. | 1,222,680,092 | |
(1)The variations in financial assumptions are due to the decrease in the discount rate from 11.28% in 2024 to 9.95% in 2025. (2)The main factor that influenced the actuarial loss due to changes in demographic assumptions in 2025 was primarily the update of the mortality table for retirees. In 2024, derived from the review of the actuarial assumptions, the assumptions of family composition and type of pension derived from the death of retirees, the salary increase and promotions, as well as the probability of retirement of active personnel were updated, the impact of which was considered in the final figures. (3)Changes in assumptions for experience depend on factors that may not remain constant year to year, including changes in population that differ from expectations. The factors that influenced results for 2025 were an increase in salaries, departures and inflows of personnel.
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| Summary of Additional Fair value Disclosure About Plan Assets and Indicate Their Rank |
The following tables present additional fair value disclosure about plan assets and indicate their rank, in accordance with IFRS 13, as of December 31, 2025 and 2024: | | | | | | | | | | | | | | | | Fair value measurements as of December 31, 2025 | | Plan assets | Quoted prices in active markets for identical assets (level 1) | Significant
observable
inputs (level 2) | Significant
unobservable
inputs (level 3) | Total | | Cash and cash equivalents | Ps. | 2,506,395 | | Ps. | — | | Ps. | — | | Ps. | 2,506,395 | | | Debt instruments | 2,243,958 | | — | | — | | 2,243,958 | | | Total | Ps. | 4,750,353 | | Ps. | — | | Ps. | — | | Ps. | 4,750,353 | |
| | | | | | | | | | | | | | | | Fair value measurements as of December 31, 2024 | | Plan assets | Quoted prices in active markets for identical assets (level 1) | Significant
observable
inputs (level 2) | Significant
unobservable
inputs (level 3) | Total | | Cash and cash equivalents | Ps. | 113,020 | | Ps. | — | | Ps. | — | | Ps. | 113,020 | | | Debt instruments | 2,080,727 | | — | | — | | 2,080,727 | | | Total | Ps. | 2,193,747 | | Ps. | — | | Ps. | — | | Ps. | 2,193,747 | |
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| Summary of Principal Actuarial Assumptions Used in Determining the Defined Benefit Obligation |
As of December 31, 2025 and 2024, the principal actuarial assumptions used in determining the defined benefit obligation for the plans are as follows: | | | | | | | | | | December 31, | | 2025 | 2024 | | Rate of increase in salaries | 5.20 | % | 5.20 | % | | Rate of increase in pensions | 4.00 | % | 4.00 | % | | Rate of increase in post-mortem pensions | 0.00 | % | 0.00 | % | | Rate of increase in medical services | 7.65 | % | 7.65 | % | | Inflation assumption | 4.00 | % | 4.00 | % | | Rate of increase in basic basket for active personnel | 5.00 | % | 5.00 | % | | Rate of increase in basic basket for retired personnel | 4.00 | % | 4.00 | % | | Rate of increase in gas and gasoline | 4.00 | % | 4.00 | % | Discount and return on plan assets rate (1) | 9.95 | % | 11.28 | % | | Average length of obligation (years) | 11.40 | 10.91 |
(1)In accordance with IAS 19, the discount rate was determined using as a reference the interest rates observed in Mexican Government bonds, based on the Fixed Rate bonds of the Federal Government (“Bonos M”) and the “Cetes”, as well as the flow of expected payments to cover the contingent obligations. As a consequence of the change in the yields of the financial instruments mentioned above at the end of the year, the discount rate decreased compared to the end of 2024. The principal actuarial assumptions used in determining the defined benefit obligation for the plans are as follows: | | | | | | | | | | December 31, | | 2025 | 2024 | | Rate of increase in salaries | 5.20 | % | 5.20 | % | | Inflation assumption | 4.00 | % | 4.00 | % | | Rate of increase in basic basket for active personnel | 5.00 | % | 5.00 | % | | Rate of increase in basic basket for retired personnel | 4.00 | % | 4.00 | % | | Rate of increase in gas and gasoline | 4.00 | % | 4.00 | % | Discount and return on plan assets rate (1) | 9.95 | % | 11.28 | % | | Average length of obligation (years) | 11.40 | 10.91 |
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