#1MIGUEL HIDALGO REFINERY, TULA Investor Presentation October, 2023 PEMEX ® POR EL RESCATE DE LA SOBERANÍA AÑO DE 2023 Francisco VILA EL REVOLUCIONARIO DEL PUEBLO 2023. Petróleos Mexicanos. All the rights reserved.#2Forward-Looking Statement & Cautionary Note PEMEX® POR EL RESCATE DE LA SOBERANÍA Variations If no further specification is included, comparisons are made against the same realized period of the last year. Rounding Numbers may not total due to rounding. Financial Information Excluding budgetary and volumetric information, the financial information included in this report and the annexes hereto is based on unaudited consolidated financial statements prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board ("IFRS"), which PEMEX has adopted effective January 1, 2012. Information from prior periods has been retrospectively adjusted in certain accounts to make it comparable with the unaudited consolidated financial information under IFRS. For more information regarding the transition to IFRS, see Note 23 to the consolidated financial statements included in Petróleos Mexicanos' 2012 Form 20-F filed with the Securities and Exchange Commission (SEC) and its Annual Report filed with the Comisión Nacional Bancaria y de Valores (CNBV). EBITDA is a non-IFRS measure. We show a reconciliation of EBITDA to net income in Table 33 of the annexes to PEMEX's Results Report as of March 31, 2015. Budgetary information is based on standards from Mexican governmental accounting; therefore, it does not include information from the subsidiary companies or affiliates of Petróleos Mexicanos. It is important to mention, that our current financing agreements do not include financial covenants or events of default that would be triggered as a result of our having negative equity. Methodology We might change the methodology of the information disclosed in order to enhance its quality and usefulness, and/or to comply with international standards and best practices. Foreign Exchange Conversions Convenience translations into U.S. dollars of amounts in Mexican pesos have been made at the exchange rate at close for the corresponding period, unless otherwise noted. Due to market volatility, the difference between the average exchange rate, the exchange rate at close and the spot exchange rate, or any other exchange rate used could be material. Such translations should not be construed as a representation that the Mexican peso amounts have been or could be converted into U.S. dollars at the foregoing or any other rate. It is important to note that we maintain our consolidated financial statements and accounting records in pesos. As of September 30, 2023, the exchange rate of MXN 17.6195 = USD 1.00 is used. Fiscal Regime Beginning January 1, 2015, Petróleos Mexicanos' fiscal regime is governed by the Ley de Ingresos sobre Hidrocarburos (Hydrocarbons Revenue Law). From January 1, 2006 and to December 31, 2014, PEP was subject to a fiscal regime governed by the Federal Duties Law, while the tax regimes of the other Subsidiary Entities were governed by the Federal Revenue Law. On April 18, 2016, a decree was published in the Official Gazette of the Federation that allows assignment operators to choose between two schemes to calculate the cap on permitted deductions applicable to the Profit-Sharing Duty: (i) the scheme established within the Hydrocarbons Revenue Law, based on a percentage of the value of extracted hydrocarbons; or (ii) the scheme proposed by the SHCP, calculated upon established fixed fees, USD 6.1 for shallow water fields and USD 8.3 for onshore fields. The Special Tax on Production and Services (IEPS) applicable to automotive gasoline and diesel is established in the Production and Services Special Tax Law "Ley del Impuesto Especial sobre Producción y Servicios". As an intermediary between the Ministry of Finance and Public Credit (SHCP) and the final consumer, PEMEX retains the amount of the IEPS and transfers it to the Mexican Government. In 2016, the SHCP published a decree trough which it modified the calculation of the IEPS, based on the past five months of international reference price quotes for gasoline and diesel. As of January 1 2016, and until December 31, 2017, the SHCP will establish monthly fixed maximum prices of gasoline and diesel based on the following: maximum prices will be referenced to prices in the U.S. Gulf Coast, plus a margin that includes retails, freight, transportation, quality adjustment and management costs, plus the applicable IEPS to automotive fuel, plus other concepts (IEPS tax on fossil fuel, established quotas on the IEPS Law and value added tax). PEMEX's "producer price" is calculated in reference to that of an efficient refinery operating in the Gulf of Mexico. Until December 31, 2017, the Mexican Government is authorized to continue issuing pricing decrees to regulate the maximum prices for the retail sale of gasoline and diesel fuel, taking into account transportation costs between regions, inflation and the volatility of international fuel prices, among other factors. Beginning in 2018, the prices of gasoline and diesel fuel will be freely determined by market conditions. However the Federal Commission for Economic Competition, based on the existence of effective competitive conditions, has the authority to declare that prices of gasoline and diesel fuel are to be freely determined by market conditions before 2018. Hydrocarbon Reserves In accordance with the Hydrocarbons Law, published in the Official Gazette on August 11, 2014, the National Hydrocarbons Commission (CNH) will establish and will manage the National Hydrocarbons Information Center, comprised by a system to obtain, safeguard, manage, use, analyze, keep updated and publish information and statistics related; which includes estimations, valuation studies and certifications. On August 13, 2015, the CNH published the Guidelines that rule the valuation and certification of Mexico's reserves and the related contingency resources. As of January 1, 2010, the Securities and Exchange Commission (SEC) changed its rules to permit oil and gas companies, in their filings with the SEC, to disclose not only proved reserves, but also probable reserves and possible reserves. Nevertheless, any description of probable or possible reserves included herein may not meet the recoverability thresholds established by the SEC in its definitions. Investors are urged to consider closely the disclosure in our Form 20-F and our Annual Report to the CNBV and SEC, available at http://www.pemex.com/. Forward-looking Statements This report contains forward-looking statements. We may also make written or oral forward-looking statements in our periodic reports to the CNBV and the SEC, in our annual reports, in our offering circulars and prospectuses, in press releases and other written materials and in oral statements made by our officers, directors or employees to third parties. We may include forward-looking statements that address, among other things, our: exploration and production activities, including drilling; activities relating to import, export, refining, petrochemicals and transportation, storage and distribution of petroleum, natural gas and oil products; activities relating to our lines of business, including the generation of electricity; projected and targeted capital expenditures and other costs, commitments and revenues; liquidity and sources of funding, including our ability to continue operating as a going concern; strategic alliances with other companies; and the monetization of certain of our assets. . Actual results could differ materially from those projected in such forward-looking statements as a result of various factors that may be beyond our control. These factors include, but are not limited to: changes in international crude oil and natural gas prices; effects on us from competition, including on our ability to hire and retain skilled personnel; limitations on our access to sources of financing on competitive terms; our ability to find, acquire or gain access to additional reserves and to develop the reserves that we obtain successfully; uncertainties inherent in making estimates of oil and gas reserves, including recently discovered oil and gas reserves; technical difficulties; significant developments in the global economy; significant economic or political developments in Mexico; developments affecting the energy sector; and changes in our legal regime or regulatory environment, including tax and environmental regulations. Accordingly, you should not place undue reliance on these forward-looking statements. In any event, these statements speak only as of their dates, and we undertake no obligation to update or revise any of them, whether as a result of new information, future events or otherwise. These risks and uncertainties are more fully detailed in our most recent Annual Report filed with the CNBV and available through the Mexican Stock Exchange (http://www.bmv.com.mx/) and our most recent Form 20-F filing filed with the SEC (http://www.sec.gov/). These factors could cause actual results to differ materially from those contained in any forward-looking statement. Acceso derecho a la información pública 2023. Petróleos Mexicanos. All the rights reserved.#3Financial highlights 2023. Petróleos Mexicanos. All the rights reserved. . . . . . . . PEMEX POR EL RESCATE DE LA SOBERANIA PEMEX ® POR EL RESCATE DE LA SOBERANÍA 2023 Francisco VILA EL REVOLUCIONARIO DEL PUEBLO 000 PEMEX#4Total sales Cost of sales (reverse) Impairment Gross Income (loss) 1,294 (1,001) Income statement, January-September 2023 MXN billion (74) 220 (131) 88 (102) General expenses Operating income 2023. Petróleos Mexicanos. All the rights reserved. Financial cost Foreign exchange profit Subsidiaries and affiliates 183 Income before taxes and duties 0 duties Taxes and 4 During January-September 2023, PEMEX generated an operating income of MXN 88 billion, and a net income of MXN 3 billion. 169 (166) Net income 3 PEMEX® POR EL RESCATE DE LA SOBERANÍA#5PEMEX is a company that creates value EBITDA Margin (EBITDA/Sales)¹ PEMEX ® POR EL RESCATE DE LA SOBERANIA BR PETROBRAS 51.9% equinor 44.3% Chevron 23.8% PEMEX 22.9% eni 21.1% TotalEnergies 20.9% bp 20.3% Exxon 19.6% 19.5% Shell 12.0% REPSOL Average 23% 1. In this calculation, PEMEX excludes variables that do not generate cash flow. Bloomberg estimates and PEMEX preliminary reults as of 2Q23. • At the end of 3Q23, PEMEX'S EBITDA margin ranked fourth among the top 10 companies in the industry. 5 2023. Petróleos Mexicanos. All the rights reserved.#6CAPEX evolution, 2016-2023 MXN million 1. 183,021 291,847 206,811 161,492 113,025 111,127 122,476 96,762 PEMEX® POR EL RESCATE DE LA SOBERANIA 161,827 2016 2017 2018 2019 2020 2021 2022 2023 E 9M23 EPS 2022 2023 E 9M23 PEP 161,838 221,247 128,124 PTRI 37,813 58,091 26,543 PLOG1 7,159 12,509 7,160 Total 206,811 291,847 161,827 Environmental 1,607 1,521 908 Industrial Safety 2,698 3,266 960 Includes Corporate Source: PEMEX 20-F Reports from 2016 to 2022. Cash flow amounts based on budget records. Does not include financial investment or non-capitalizable investment. 2023. Petróleos Mexicanos. All the rights reserved. Οι#7Government support PEMEX® POR EL RESCATE DE LA SOBERANÍA ■ In this administration coordination with the Federal Government has been close. Petróleos Mexicanos has been supported through various mechanisms that have allowed it to overcome important challenges. ■ Cash flow is jointly managed with the Ministry of Finance. Capital Injections Tax relief Approximately MXN 806 billion from 2019 - 9M23. ■ For debt repayment. ■ For investment, for example: - Acquisition of 50% of the Deer Park refinery. - Olmeca refinery. ▪ To enhance efficiency in industrial transformation: - Refinery rehabilitation program - Fertilizer chain. ■ Decrease in the Profit-Sharing Duty (DUC) rate from 65% in 2019 to 58% in 2020, 54% in 2021 and 40% in 2022 and 2023. Estimated savings of around MXN 457 billion from 2019 - 9M23. ■ Tax credits in 2020 and 2021 for more than MXN 138 billion. ▪ One month payment deferral of DUC and one month and a half payment deferral of Hydrocarbons Extraction Duty (DEXTH). Note: preliminary data 2023. Petróleos Mexicanos. All the rights reserved. 7#8- Government support 2019 – 9M23 Government support MXN billion PEMEX® POR EL RESCATE DE LA SOBERANIA 806 [103] 12 4 212 23 Allocations 2019-9M23 MXN billion Debt payment Olmeca Refinery 417 38 Deer Park Acquisition 322 NRS Rehabilitation -46 122 312 2019 2020 2021 2022 9M23 Total Fertilizers chain Other DUC rate decrease Estimated Savings¹ MXN billion 2019 65% 2020 58% 26.5 2021 54% 77.9 2022 40% 238.1 2023 40% 114.6 1. Estimate vs 65% In this administration Government support has materialized through various mechanisms, reaching approximately MXN 1,401 billion. . • Capital injections. In 2019 - 9M23, the Federal Government has injected MXN 806 billion. • DUC rate reduction. In the 2019 – 9M23 period this measure has represented savings of approximately MXN 457 billion. Tax credits. This support was granted in 2020 and 2021 for a total of MXN 138 billion. 2023. Petróleos Mexicanos. All the rights reserved. 00#964,332 77,677 86,792 95,972 102,992 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 Note: For the years 2013 to 2022 are figures from Audited financial statements. For 2023 are estimated figures as of the end of September 2023. Includes accrued interest. 2023. Petróleos Mexicanos. All the rights reserved. 105,792 105,235 108,435 105,244 Debt Balance USD million 102,591 101,172 113,227 4,792 109,296 107,728 105,836 4,052 5,137 4,664 PEMEX ® POR EL RESCATE DE LA SOBERANÍA Registered nominal debt Monetization of Federal Government Promissory Notes Financial debt#10Debt Maturity Profile Debt maturity profile as of September 30, 2023 USD 104.6 billion 10.9 PEMEX ® POR EL RESCATE DE LA SOBERANIA 8.7 7.5 6.2 4.8 5.0 5.0 3.8 3.3 1.5 2.3 2.7 0.0 0.0 24.4 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038.. Note: Profile does not include revolving credits or other short- and long-term liabilities or accrued interest. 2023. Petróleos Mexicanos. All the rights reserved. 10#11....... Exploration & Production 2023. Petróleos Mexicanos. All the rights reserved. PEMEX POR EL RESCATE DE LA SOBERANIA PEMEX ® POR EL RESCATE DE LA SOBERANÍA 2023 Francisco VILA EL REVOLUCIONARIO DEL PUEBLO 000 PEMEX#12Stabilization and growth in liquid hydrocarbon production PEMEX ® POR EL RESCATE DE LA SOBERANÍA Besides to the incorporation of new developments, additional activity was carried out in mature fields, reducing the annual decline in production. Liquid hydrocarbon production Thousand barrels per day (Mbd) Contribution of the New Fields Thousand barrels per day (Mbd) 2,548 2,522 2,429 2,267 2,154 Observed Forecast 1,948 1,882 1,833 1,756 1,785 1,701 1,705 Downward trend Sep 2023 586.6 Mbd December 13.5 December 146.0 December 294.4 December 473.1 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 9M23 2019 2020 2021 2022 Jan-Sep 2023 Note: PEMEX, liquid hydrocarbons includes crude oil, condensates and partners' production 2023. Petróleos Mexicanos. All the rights reserved. 12#131P Reserves' Evolution PEMEX ® Billion barrels of crude oil equivalent POR EL RESCATE DE LA SOBERANIA For the third year in a row, PEMEX incorporated more 1P resources than it consumed for production 9.6 8.6 +6% 7.7 7.0 7.2 7.4 7.4 2016 2017 2018 2019 2020 2021 2022 Note: Values as of January 1st of each year. 2023. Petróleos Mexicanos. All the rights reserved. 13#14Reserve Replacement Ratio Percentage Million barrels of crude oil equivalent 2,000 1,500 1,000 41% 500 104% 101% 86% 72% 77% 50% 68% 67% 35% 17% 4% PEMEX ® POR EL RESCATE DE LA SOBERANIA Variation 1P Production % Reserve replacement ratio 124% 120% 100%¹ -500 -142% 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 In the last three years, proven reserves have been restored with respect to the year's production. 1. Preliminary Note: Values as of January 1 of each year. 2023. Petróleos Mexicanos. All the rights reserved. 14#15....... PEMEX POR EL RESCATE DE LA SOBERANIA Industrial Transformation 2023. Petróleos Mexicanos. All the rights reserved. PEMEX ® POR EL RESCATE DE LA SOBERANÍA 2023 Francisco VILA EL REVOLUCIONARIO DEL PUEBLO 000 PEMEX#16Strengthening crude oil processing capacity Thousand barrels per day (Mbd) PEMEX ® POR EL RESCATE DE LA SOBERANIA With the rehabilitation of the NRS, and the Deer Park incorporation, it was possible to reverse the downward trend in crude oil processing. Compared to the beginning of the Administration, processing capacity has increased by 75%. -50% Reduction NRS + Deer Park 75.7% 1,092 1,075 276 262 NRS rehabilitation 32.8% 1,224 1,155 1,065 933 767 816 813 712 612 592 591 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 9M23 1. NRS: National Refining System For Deer Park, data is included as of the date of purchase. 2023. Petróleos Mexicanos. All the rights reserved. 16#17Sales of gasolines and diesel Sales of gasolines and diesel Thousands of barrels per day annual average¹ 1095 1013 789 781 PEMEX ® POR EL RESCATE DE LA SOBERANIA Sales of gasolines 2023 Mbd 680 667 669 658 660 660 646 641 644 640 625 620 974 956 620 600 Jan Feb Mar Apr May Jun Jul Aug Sep Sales of diesel 2023 Mbd 319 320 301 297 296 300 289 289 274 280 272 268 2018 2019 2020 2021 2022 Sep 2023 260 Jan Feb Mar Apr May Jun Jul Aug Sep Except September 2023, which corresponds to the average of the month. Note: Preliminary information as of September 30, 2023. 2023. Petróleos Mexicanos. All the rights reserved. 17#182019 2020 PEMEX franchise service stations July 2022- September 2023 Jul-22 6,813 Aug-22 6,848 Sep-22 Oct-22 Note: Preliminary data as of September 30, 2023. Nov-22 PEMEX's participation in the domestic gasoline and diesel market Percentage PEMEX ® POR EL RESCATE DE LA SOBERANIA Dec-22 86.2 79.8 81.5 82.0 79.9 75.1 Jan-23 Feb-23 2021 2022 9M23 2023 E Mar-23 7,030 Apr-23 7,055 May-23 7,058 Jun-23 7,080 Jul-23 7,086 Aug-23 7,112 Sep-23 7,122 2023. Petróleos Mexicanos. All the rights reserved. PEMEX, the leading brand in the market. The loss of PEMEX franchises was contained. Between July 2022 and June 2023, 309 service stations have joined the PEMEX franchise. 18#19ESG¹ ....... PEMEX POR EL RESCATE DE LA SOBERANIA 1. Environmental, Social and Governance criteria 2023. Petróleos Mexicanos. All the rights reserved. PEMEX ® POR EL RESCATE DE LA SOBERANÍA 2023 Francisco VILA EL REVOLUCIONARIO DEL PUEBLO 000 PEMEX#20Progress on ESG strategy Plan de Sostenibilidad 2023-2050 CO Sustainability Plan 2023-2050 PEMEX® POR EL RESCATE DE LA SOBERANÍA Efforts continue for the preparation of the Sustainability Plan through which the medium and long- term environmental, social and governance (ESG) strategy will be outlined. In the quarter, workshops to identify projects to reduce emissions in work centers in all operational areas were held. Sustainability Committee Since its installation on March 2023, to the date of this presentation, the Sustainability Committee has held six sessions, in which it oversees the ESG strategy, monitors performance, and promotes the development and implementation of new initiatives and standards. Gas use strategy Progress continues in the implementation of projects to increase gas use at Pemex Exploration and Production (PEP) facilities. In the third quarter, gas use in PEP's facilities was 94%. This has allowed us to achieve a 17.8% reduction in PEMEX's GHG emissions in 3Q23. The goal is to reach a 98% use by the end of 2024. Disclosure through CDP On July 27, 2023, PEMEX presented its 2022 climate change and water security information through CDP the Carbon Disclosure Project (CDP) platform. This exercise will allow PEMEX to strengthen transparency, align to best practices and identify challenges and opportunities to support the ESG strategy definition. DISCLOSURE INSIGHT ACTION CRPEMEX: Risk Committee of Petróleos Mexicanos and its Subsidiary Productive Companies. 2023. Petróleos Mexicanos. All the rights reserved. 20#21Environmental Protection Key Performance Indicators CO₂e PEMEX® POR EL RESCATE DE LA SOBERANIA SOX ۵ 3Q22 3Q23 3Q22 3Q23 3Q22 3Q23 18.5 15.2 338.7 280.7 0.172 0.193 MMtCO2e Mt MMtCO₂e Mt 17.8% 17.1% 12.2% Carbon dioxide equivalent emissions Implementation and start-up of infrastructure projects for the use of associated gas. Sulfur oxide emissions Lower fuel oil consumption in refining and lower sour gas flaring in PEP. Water Reuse / Use Higher reuse of water at the Tula Refinery and the start-up of the water treatment plant at the Madero refinery 2023. Petróleos Mexicanos. All the rights reserved. 21#22GHG Decrease Greenhouse gas emissions PEMEX MMtCO₂e (3.3) -17.8% PEMEX® POR EL RESCATE DE LA SOBERANIA 18.6 16.7 17.9 17.9 16.4 17.6 18.5 17.4 15.7 14.5 15.2 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 Gas use E&P processes¹ Gas flaring (MMcfd) Gas use (%) Gas use PEP facilities² Gas flaring (MMcfd) Gas use (%) 491 485 373 393 416 384 324 393 291 291 94% 94% 95% 90% 90% 91% 94% 94% 96% 94% 3Q22 4Q22 1Q23 2Q23 3Q23 3Q22 4Q22 1Q23 2Q23 3Q23 12 1. Considers Pemex Exploration and Production and Pemex Logistics facilities 2. Considers Pemex Exploration and Production facilities 2023. Petróleos Mexicanos. All the rights reserved. 22#23Strategy for environmental risks management Environmental risk inventary¹ Number of risks identified Priority Addressed 1 38 10 61 8 91 13 39 6 6 235 1 38 2345 Total Risk Inventory Safety and Reliability¹ Year Addressed 2019 224 2020 204 2021 127 2022 62 2023 Total 8 625 PEMEX® POR EL RESCATE DE LA SOBERANÍA In the quarter, the inventory was updated, adding 10 risks, with a total of 235 environmental risks. At the end of 3Q23, 38 risks have been addressed; 72 are in process and 125 have a work program for the subsequent years. Regarding priority 1 risks, 10 are addressed, 15 are in process and 13 have a work program. ➤ The estimated total investment to address of environmental risks inventory is MXN 11.8 billion, which contributes to the mitigation of impacts on soil, water and air. As of 3Q23, 625 safety and reliability risks have been addressed out of a total inventory of 853 risks identified. For the remaining 228 risks, mitigation plans have been implemented to definitively address them. The estimated total investment for the attention of this inventory is MXN 23.0 billion. 1. Inventory information as of the 2Q23 was provided by the Subsidiary Company. 2023. Petróleos Mexicanos. All the rights reserved. 23#24INVESTOR RELATIONS (+52) 559126 2940 [email protected] https://www.pemex.com/en/investors PEMEX ® POR EL RESCATE DE LA SOBERANÍA 2023. Petróleos Mexicanos. All the rights reserved. AÑO DE 2023 Francisco VILLA EL REVOLUCIONARIO DEL PUEBLO