Two State Oil Giants Move to Seal a Gulf of Mexico Tie-Up

Latin America · Energy

A Pemex Petrobras partnership that began as a phone call between two presidents is about to take its first concrete step, as Mexico’s new oil chief travels to Brazil to start signing the paperwork.

(Photo: Maksim Safiullin, CC BY 3.0, via Wikimedia Commons)

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Two of Latin America’s largest state-owned oil companies are moving from talk to paperwork. The head of Mexico’s Pemex is expected to visit Brazil this month to begin signing the first formal documents of a partnership to drill for oil together.

The news came from Magda Chambriard, the chief executive of Brazil’s Petrobras, who confirmed the visit at an event on Friday. For a reader abroad, the short version is that two government oil firms are pooling their strengths rather than calling in the usual foreign majors.

Pemex is short for Petróleos Mexicanos, the oil company owned by the Mexican state. Petrobras is its much larger Brazilian counterpart, the most valuable company in Latin America.

The visitor will be Pemex’s new chief executive, Juan Carlos Carpio. According to Chambriard, the two firms want to sign non-disclosure agreements and memorandums of understanding, the early legal papers that let companies share sensitive data and begin joint technical studies.

What the Pemex Petrobras deal would cover

The studies would focus on three areas. The headline one is exploring for oil in the deep waters of the Gulf of Mexico, on the Mexican side, along with crude production and refining.

The logic rests on a simple division of strengths. Petrobras is one of the world’s most accomplished deepwater drillers, routinely pulling oil from fields buried under water nearly two and a half kilometres deep.

Pemex, by contrast, has watched its output slide to roughly half its peak of two decades ago. Mexico has been searching for partners to help reverse that decline without simply handing its fields to international oil majors.

Chambriard has hinted the cooperation could stretch beyond exploration to managing mature, ageing fields together. She has also raised the idea of refining any oil they find nearby in Mexico rather than shipping it far away.

The talks have a fourth strand that has little to do with crude oil. Mexico has shown interest in Brazil’s ethanol industry, the vast sugarcane-based fuel sector that Brazilian drivers have relied on for decades.

Earlier rounds of the discussion also touched on biodiesel, a cleaner fuel made from plant oils. For Mexico, the appeal is a ready-made template for building its own biofuel supply.

Why the partnership is unusual

The arrangement matters because of how unequal the two partners are. Petrobras is worth more than $100 billion and is expanding abroad to add new reserves.

Pemex sits at the opposite end. It is the most indebted oil company in the world and reported a loss of roughly two and a half billion dollars in the final quarter of 2025.

That gap is the point of the deal rather than an obstacle to it. Brazil brings the technical know-how and the appetite to grow, while Mexico brings the acreage and the urgent need to lift production.

The whole idea traces back to a single conversation. Brazilian President Luiz Inácio Lula da Silva proposed it during a March phone call with his Mexican counterpart, Claudia Sheinbaum, and the two governments have warmed to closer energy ties since.

For an investor watching the region, this is a marker worth tracking. Two state oil giants joining forces could reshape who develops the Gulf of Mexico, and whether Mexican output can be turned around at all.

There is a wider backdrop too. The Sheinbaum government has pledged to pour much of its infrastructure spending into energy over the rest of the decade, aiming to cut the country’s heavy reliance on imported gas.

A working partnership with Brazil would fit neatly into that plan. The first test, though, is simply whether the paperwork gets signed when Carpio lands in Brazil.

Frequently Asked Questions

What is the Pemex Petrobras partnership?

It is a planned tie-up between Mexico’s state oil firm Pemex and Brazil’s Petrobras to explore for oil together in the Gulf of Mexico. It would also cover crude production and refining on the Mexican side.

Why does Mexico want Brazil’s help?

Mexican oil output has fallen to about half its level of twenty years ago, and Pemex carries heavy debt. Petrobras offers world-class deepwater drilling skill that Mexico needs to revive production.

What happens next?

Pemex chief Juan Carlos Carpio is expected to visit Brazil this month to sign initial documents such as non-disclosure agreements and memorandums of understanding. Those papers would launch joint technical studies.