Mexico’s Refinery Modernization: Tula Refinery to Resume Operations by Year-End, Boosting Pemex’s Production Capacity

Web Editor

January 4, 2026

a group of people sitting on chairs in front of a building under construction with a flag on top of

Introduction to the Tula Refinery Modernization Project

Mexico’s President, Claudia Sheinbaum Pardo, visited Atitlaquia, Hidalgo, to oversee the installation of a hydrodesulfurization reactor for naphtha as part of the modernization of the Tula refinery. This project is one of eight nationwide investments aimed at helping Petróleos Mexicanos (Pemex) regain its refining and production capacity, targeting over one million barrels per day to achieve national energy sovereignty.

Key Players and Their Roles

Grupo ICA, led by Guadalupe Phillips Margain, is responsible for the modernization of the Tula refinery. The project has involved approximately 12,000 workers, generating around 35,000 jobs. A hydrodesulfurization reactor has been installed from Altamira, Tamaulipas, to produce low-sulfur diesel. Construction is expected to finish in Salina Cruz refinery by 2026.

Project Timeline and Challenges

The Tula refinery modernization began in 2016 but faced delays due to supplier issues and budget constraints. The project resumed in 2021, with an initial target of operation commencement in 2023. However, technical and financial difficulties have postponed the start-up date.

Pemex’s Refining and Production Recovery

President Sheinbaum emphasized that the modernization of the Tula refinery is crucial for Pemex’s recovery in refining and production capacity. The eight refineries, including Tula, currently produce over one million barrels daily – a level not seen in two decades.

Impact on Energy Production and Environment

Following the 2013 energy sector opening, Pemex’s production significantly declined, leading to high debt levels near $100 billion and refinery deterioration. Despite private sector involvement, production did not increase until 2018. The Tula modernization will enable lower-sulfur gasoline and diesel production, benefiting health and the environment.

Production and Export Status

According to Pemex’s General Director, Víctor Rodríguez Padilla, the Tula refinery now processes 270,000 barrels daily after halting production entirely in 2019. The processing cost is $13 per barrel, and Mexico has shifted from importing to exporting diesel.

Key Questions and Answers

  • What is the Tula Refinery Modernization Project? It’s an initiative by Pemex and Grupo ICA to upgrade the Tula refinery, enhancing its refining and production capacity as part of a broader investment in eight refineries across Mexico.
  • When will the Tula Refinery resume operations? The project is expected to conclude by the end of this year, although it has faced technical and financial challenges that have delayed its start-up date.
  • How will the modernization impact Pemex’s production? The modernized refineries, including Tula, will enable Pemex to produce over one million barrels daily, reaching levels not seen in two decades.
  • What are the environmental benefits of this project? The modernization will allow for lower-sulfur gasoline and diesel production, reducing negative impacts on health and the environment.
  • How has Pemex’s production evolved since 2013? Following the energy sector opening, Pemex’s production declined significantly, leading to high debt and refinery deterioration. Production only began to improve in 2018.