PEMEX's Deer Park Posts Second Consecutive Annual Loss

PEMEX's Deer Park refinery in Texas recorded a net loss of US$80 million in 2025, its second consecutive annual loss, primarily due to a US$500 million planned maintenance overhaul that took the facility's largest crude distillation unit and associated processing capacity offline for much of the year. Despite reduced throughput of 261,300 barrels per day, management reported the refinery's best reliability metrics in three years and confirmed full operational restart, positioning Deer Park for improved performance in 2026 as Gulf Coast margins recover. The results renewed scrutiny of PEMEX's energy sovereignty rationale for the acquisition, given that the refinery operates commercially within the US market rather than as a dedicated supply source for Mexico.

The Deer Park refinery in Texas, a cornerstone of PEMEX's energy sovereignty strategy and a source of consistent profits within an otherwise financially strained company, has now recorded losses for two consecutive years. The facility reported a net loss of US$80 million in 2025, a significant reversal from the record-breaking gains it posted in its first two years under full Mexican ownership, and a result that PEMEX officials attribute primarily to a large-scale maintenance shutdown rather than structural deterioration in the asset's competitiveness.

When the company completed its full acquisition of the refinery in January 2022, purchasing the remaining 50.005% stake from Shell for US$594 million, the timing proved fortuitous. Soaring fuel prices in the wake of Russia's invasion of Ukraine drove Deer Park to one of the most profitable years in its history, with net profits reaching US$954 million, meaning PEMEX recovered its entire investment in less than a year. In 2023, profits remained robust at US$581 million. Then the cycle turned. By mid-2024, Deer Park was already processing less crude than projected, and the refinery entered 2024 with declining margins, eventually closing the year with a loss of US$118 million, its first negative result under PEMEX ownership. The 2025 loss of US$80 million marks the second consecutive year in the red, though it represents an improvement over 2024.

The primary driver of the 2025 result was a planned, large-scale maintenance program that PEMEX Director General Víctor Rodríguez described in October 2025 as "major surgery." The overhaul centered on DU-2, the refinery's largest crude distillation unit with a capacity of 270Mb/d, which was taken offline along with the fluid catalytic cracking unit, hydrocracking unit, and coker, collectively representing the bulk of Deer Park's processing capacity. The investment required to execute the turnaround totaled at least US$500 million, and the reduced throughput during the shutdown period directly compressed the year's financial results.

The operational numbers reflect the impact: Deer Park processed an average of 261.3Mb/d of crude oil in 2025, a 3.9% annual decline, while production of gasoline, diesel, and jet fuel fell 6.3% to 240Mb/d. Yet PEMEX's PMI Comercio Internacional Director Adán Enrique García offered a notably optimistic reading of the underlying performance during an investor conference, pointing out that despite the capacity reduction, Deer Park achieved its best reliability metrics in three years. "All units restarted safely and operated at planned capacity," he said, adding that throughout 2025 the refinery was self-sufficient and required no credit line, a detail that speaks to the quality of the asset even in a difficult operational year.

García also framed the market outlook constructively. While refining margins on the US Gulf Coast north have pulled back from their November 2025 highs, he noted that supply and demand balances continue to point toward solid margins over the next two years. Factors supporting that view include the gradual start-up of new refining installations, scheduled maintenance programs at competing facilities, and a sustained reduction in fuel inventories. Refinery capacity utilization on the Gulf Coast increased in December as maintenance activity declined, positioning Deer Park to operate at fuller capacity through 2026 now that its own overhaul is complete.

The broader context for Deer Park's role in PEMEX's strategy has also evolved. Mexico's drive for fuel self-sufficiency, which underpinned the original rationale for acquiring full control of the refinery, has faced persistent challenges, with economists warning that diverting resources to domestic refining limits funding for exploration, debt repayment, and production expansion. Deer Park was initially positioned as a facility that would eventually send 100% of its production to Mexico, but in practice it has operated primarily as a commercial refinery serving the US Gulf Coast market, selling the vast majority of its output domestically and sending only a portion back to Mexico. That commercial logic, selling fuel where margins are highest rather than shipping it across the border, has been central to the refinery's financial model, even as it complicates the energy sovereignty narrative. 

Looking ahead, the completion of the major maintenance cycle removes the single largest headwind that weighed on 2025 results. With all units back online, a more favorable margin environment projected for 2026, and a reliability track record that management describes as the best in three years, Deer Park enters its fourth full year under PEMEX ownership in stronger operational shape than its income statement would suggest.