Why is TotalEnergies divesting from this Mexican shallow-water block?

TotalEnergies is actively high-grading its global upstream portfolio to focus on high-return, low-emission deepwater assets. Divesting from non-core shallow-water exploration blocks allows the French major to reallocate capital to more lucrative basins, such as those in Suriname, Namibia, and Brazil.

Who is the buyer, Grupo Carso, and what is their strategy?

Grupo Carso is a massive Mexican conglomerate controlled by the billionaire Carlos Slim family. The acquisition, executed through its subsidiary Zamajal, is part of the group's strategic push to expand its footprint in Mexico's domestic energy sector by acquiring promising assets from exiting international companies.

What does this transaction signal for the Mexican oil and gas market?

This deal highlights a broader trend of consolidation in Mexico's private energy sector, where local conglomerates are replacing international majors. While foreign giants are rationalizing their portfolios due to shifting global strategies, domestic firms with deep political and economic ties are stepping in to develop the country's hydrocarbon resources.

Offshore Energy · July 17, 2026 (Jul 17) · 1 min read

TotalEnergies offloading Mexican shallow water block to Grupo Carso

TotalEnergies SE

Isometric technical illustration of offshore oil and gas operations with drillship and support vessel — Illustration: TotalEnergies SE

Analysis

AI-assisted analysis · reviewed by Yuri Kan

French supermajor TotalEnergies is streamlining its global upstream portfolio by divesting its interest in a shallow-water exploration block in Mexico to local conglomerate Grupo Carso. This transaction underscores TotalEnergies' ongoing strategy to high-grade its offshore assets, shifting capital away from non-core exploration areas toward high-yield deepwater projects. For Grupo Carso, controlled by the Carlos Slim family, the acquisition represents a calculated expansion into Mexico's domestic oil and gas sector, capitalizing on assets being rationalized by international oil companies.

Key Facts

TotalEnergies' Mexican subsidiary has agreed to sell its entire stake in an offshore shallow-water block in Mexico.
The buyer is Mx Dlta Nrg 1, a subsidiary of Zamajal.
Mexican conglomerate Grupo Carso holds a dominant 80% controlling interest in Zamajal.
The remaining 20% stake in Zamajal is held by Control Empresarial de Capitales.
This divestment aligns with TotalEnergies' broader corporate strategy of rationalizing its shallow-water exploration portfolio globally.

Background & Context

Following Mexico's landmark 2013 energy reforms, international oil companies rushed to acquire exploration blocks in the Gulf of Mexico. However, regulatory shifts under subsequent administrations and mixed exploration results have prompted several global majors to re-evaluate their Mexican commitments. TotalEnergies, like many of its peers, is increasingly prioritizing high-margin, low-carbon deepwater developments in regions like Brazil, Namibia, and the US Gulf of Mexico, leading to the divestment of non-core shallow-water assets.

Market Impact

This transaction strengthens Grupo Carso's position as an emerging domestic champion in Mexico's private energy sector, leveraging its local operational footprint and financial clout. For the Mexican market, it signals a transition of ownership from international majors to capitalized domestic players who are more aligned with the country's current regulatory landscape. TotalEnergies frees up capital and managerial resources to focus on its core growth hubs, while the block itself gains a committed local operator capable of navigating domestic supply chains and regulatory frameworks.

What to Watch

Market observers should watch for the regulatory approval of this transaction by Mexico's National Hydrocarbons Commission (CNH), which will serve as a timeline benchmark. Additionally, attention will turn to Grupo Carso's subsequent drilling and development plans for the block to see if they can fast-track commercial production. Finally, this deal may trigger similar rationalization moves by other international oil companies holding shallow-water acreage in the Gulf of Mexico.

Frequently Asked Questions

Why is TotalEnergies divesting from this Mexican shallow-water block?: TotalEnergies is actively high-grading its global upstream portfolio to focus on high-return, low-emission deepwater assets. Divesting from non-core shallow-water exploration blocks allows the French major to reallocate capital to more lucrative basins, such as those in Suriname, Namibia, and Brazil.
Who is the buyer, Grupo Carso, and what is their strategy?: Grupo Carso is a massive Mexican conglomerate controlled by the billionaire Carlos Slim family. The acquisition, executed through its subsidiary Zamajal, is part of the group's strategic push to expand its footprint in Mexico's domestic energy sector by acquiring promising assets from exiting international companies.
What does this transaction signal for the Mexican oil and gas market?: This deal highlights a broader trend of consolidation in Mexico's private energy sector, where local conglomerates are replacing international majors. While foreign giants are rationalizing their portfolios due to shifting global strategies, domestic firms with deep political and economic ties are stepping in to develop the country's hydrocarbon resources.

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