Second Fire in a Month at Pemex's Salina Cruz Refinery. One Worker Is Already Dead

A fire broke out Sunday night at Pemex's Antonio Dovalí Jaime refinery in Salina Cruz, Oaxaca, marking the second emergency at the facility in less than a month. The first one killed an engineer.

The fire originated in the refinery's alkylation plant and sent a column of black smoke and flames visible for kilometers across the Istmo de Tehuantepec, according to preliminary reports from the state-owned oil company. Internal emergency protocols were activated immediately. Firefighting teams brought the blaze under control after several hours.

No injuries or deaths were reported from the Sunday night fire. But the incident comes less than three weeks after an explosion at the same facility killed one person and injured six others.

On May 11, an explosion ripped through a cooling tower at the refinery during startup operations at the Hidros II plant. The blast injured six people: three Pemex workers and three employees of an external contractor. All were rushed to a local hospital.

Engineer Víctor López Matuz was among the critically injured. He died days later while being transferred to a medical facility in Mexico City. Pemex confirmed his death in a statement, though details about the cause of the explosion remain limited.

Salina Cruz is not a refinery that rarely makes headlines. It is the largest refinery on Mexico's Pacific coast, processing crude oil since 1979. It is also one of the most incident-prone facilities in Pemex's National Refining System.

The facility has a documented history of industrial accidents. In 2017, a massive fire forced the evacuation of thousands of residents from surrounding neighborhoods. More recent incidents followed in 2022, 2023, and 2024, some involving fires and others linked to spills and emergency mobilizations.

Sunday's fire, like the May 11 explosion, is now part of that pattern.

Local Concerns

Residents of communities near the refinery have repeatedly raised alarms about operating conditions. Their complaints center on two issues: maintenance failures and safety lapses. Sunday's fire, visible from nearby colonias, generated fresh panic among a population that has learned to treat every column of smoke from the refinery as a potential disaster.

Authorities have not yet determined the cause of either the alkylation plant fire or the cooling tower explosion. Inspection and damage assessment teams remain on site.

Pemex is Mexico's largest employer and its most important state-owned enterprise. Its refineries supply the domestic fuel market and affect Mexico's position in global energy trade. When a facility as large as Salina Cruz suffers two major incidents in a month, it raises questions about operational reliability at a time when Mexico can least afford supply disruptions.

The refinery plays a critical role in supplying gasoline and diesel to southern and southeastern Mexico. Any prolonged downtime at the facility would create supply pressure in a region that depends on its output. Pemex has stated that operations continue normally and that fuel supply remains guaranteed, but the recurrence of incidents suggests deeper structural issues.

For international investors, energy analysts, and anyone tracking Mexico's industrial infrastructure, the Salina Cruz situation is a data point in a longer trend. Pemex has been the subject of repeated safety investigations, operational audits, and regulatory reviews. The company carries significant debt, and its refining division has struggled with utilization rates that lag behind industry benchmarks.

Two fires in a month at the same facility do not by themselves signal a systemic crisis. But they add to a body of evidence that Mexico's refining infrastructure requires sustained investment in safety systems, maintenance protocols, and operational oversight that has not consistently been provided.

The names of the dead and injured are known. The causes of the incidents are not. Until that changes, the pattern will keep repeating.