Mexico’s US$160B Oil Push Still Leaves Energy Sovereignty Out of Reach

Mexico could spend roughly US$160 billion chasing more domestic oil and gas, according to the International Institute for Sustainable Development (IISD), and still rely on imports for about two-thirds of its energy consumption. That gap challenges a common assumption: that pumping more at home automatically makes a country safer.

The question of how to achieve Mexico energy sovereignty has sharpened over recent months. IISD published its assessment on 29 September 2026, and it questions whether the government’s hydrocarbon strategy targets the right weakness. In June, Pemex signed a non-binding deepwater memorandum with Brazil’s Petrobras. Last month, Fitch Ratings affirmed Pemex at BB+.

For investors in oil, gas and power, these developments mark a policy fork. One path runs through the state oil company’s balance sheet. The other runs through transmission lines and solar farms.

Here is where the numbers behind Mexico’s strategy hold up, where they strain, and what that means for risk and opportunity across all three sectors.

Why import dependence makes the sovereignty case harder than it looks

The political promise is simple. Mexico has abundant oil and gas, so producing more should mean depending less on others.

Policy sets out that promise in concrete terms. The federal energy programme, PROSENER 2025-2030, targets 1.8 million barrels per day (MMb/d) of hydrocarbon liquids and 5,000 million cubic feet per day (MMcf/d) of gas by 2030, while reinforcing Pemex and reducing imports. Pemex produced about 1.655-1.66 MMb/d of liquids in Q2 2026, so the debate starts from a shortfall.

The dependence figures, drawn from IISD, show how far that promise sits from reality:

• Imports cover about two-thirds of energy consumption
• The US supplies 74% of gas demand and 59% of refined products
• US pipeline gas exports to Mexico rose from 6.4 Bcf/d (billion cubic feet per day) in 2024 to about 7.5 Bcf/d in 2025, and nearly 7.9 Bcf/d in August 2026
• The domestic refining system is processing more than 1.2 MMb/d

Refining is moving in Mexico’s preferred direction. Gas is moving the other way, with reliance on US pipelines climbing year after year.

Rising cross-border gas flows explain why the import figures look so stubborn: each additional pipeline tranche from Texas deepens a dependency that domestic crude output does nothing to offset.

Self-sufficiency versus security

Energy self-sufficiency means producing enough of your own supply. Energy security means being protected when supply is disrupted, whatever its source.

Key statistic: Mexico holds only 2.4 days of gas storage capacity, according to IISD.

That figure tells you the real exposure is resilience, not how many barrels Pemex pumps. If US pipeline flows were interrupted, extra crude output would offer little cover within that window. Keep this distinction in mind, because it frames every investment judgement that follows.

What would the hydrocarbon push cost, and can Pemex fund it?

If gas resilience is the weak point, the next question is what the oil-led route costs. IISD, drawing on Rystad Energy data, estimates the output targets would need about US$160 billion in capital expenditure (capex, the money spent on long-term assets such as wells and platforms). Close to US$110 billion of that would fall on Pemex.

Pemex’s own spending sits far below that scale. Its 2026 capex budget is MXN 129.6 billion (about US$7.3 billion), with 37.2% exercised by 30 June. Fitch cites average annual capex of roughly US$12 billion in recent years.

Then the loss estimate lands.

IISD estimate: Developing uncommercial fields could generate US$17.4 billion in net losses over 15 years.

Why two debt figures coexist

Pemex reported financial debt of US$77.5 billion at 30 June 2026, down 9.1% from US$85.2 billion at end-2025, and says debt is at its lowest since 2014. Fitch cites US$91.5 billion because it counts total obligations, not just borrowings.

What Fitch’s assessment adds

Fitch rates Pemex BB+ with a stable outlook and forecasts leverage of 4.0x in 2026, down from 8x in 2025. It also warns that ambitious production targets imply continued high capex and borrowing, alongside reliance on sovereign support.

Rating agencies differ on how much credit to give sovereign support, with Moody’s holding Pemex at a lower speculative-grade level than Fitch because of declining fields and operational risk.

Falling debt is real, but it does not equal spare capacity. Interest absorbs about 34% of quarterly EBITDA (earnings before interest, tax, depreciation and amortisation), and you should read that ratio as the limit on how much upstream growth Pemex can fund without the Mexican state stepping in.

The Pemex-Petrobras deal: framework, not project

Against that financial backdrop, the June memorandum looked like a way to share the burden. Pairing Pemex with Petrobras, whose deepwater expertise is well established, suggested serious momentum in the Gulf of Mexico.

Signed on 23 June 2026, the memorandum runs for two years (to about June 2028) and is renewable. Its scope covers three areas:

• Exploration and production: mature-field revitalisation, seismic reprocessing, and deepwater and ultra-deepwater opportunities
• Downstream: refining, petrochemicals and carbon capture
• Regulatory: knowledge exchange on each country’s hydrocarbon frameworks

The terms are where the momentum stalls. The agreement is explicitly non-binding, creating no investment commitment, consortium or joint venture.

As of early September, no specific projects or investment decisions had been detailed. Mongabay reported the first assessment would target a deep area off Campeche, though the location was not confirmed.

What critics say

Oceana Mexico stated the deal “puts the Gulf of Mexico in danger”, calling deepwater exploration one of the highest-risk activities environmentally and socially.

Oceana Mexico: The memorandum “puts the Gulf of Mexico in danger.”

Oceana vice president Renata Terrazas questioned the cost and criticised the lack of transparency, as quoted by Mongabay. CEMDA and Greenpeace Mexico share concerns over oil-spill risk, coastal displacement and decarbonisation pledges, and critics warn slow, capital-heavy projects could become stranded assets as decarbonisation accelerates.

What the government and supporters say

Officials framed the agreement as strengthening both countries’ energy sovereignty. Supporters argue state oil company expertise can lift revenue, maintain employment and keep strategic hydrocarbons under national control.

For your purposes, a non-binding memorandum means any upside for Pemex or oilfield service providers stays unproven until a sanctioned project appears. Environmental and licence risk, by contrast, is already part of the public debate.

Investors tracking the Gulf of Mexico can use our detailed coverage of the Petrobras and Pemex deepwater memorandum for the full background on why national oil companies favour collaboration.

Can grids, solar and storage deliver sovereignty instead?

If deepwater oil does little for the 2.4-day gas problem, IISD argues the answer lies elsewhere. It recommends redirecting public investment into grids, transmission, distributed solar and storage. It calls a 45% clean electricity share by 2030 feasible, saving at least US$1.6 billion a year in gas imports.

Co-author Luis Martínez argues uncommercial fields risk big losses, while renewables, grids and storage can cut imports and attract private investment.

The thesis builds on plans already in motion. Mexico had about 8.44 GW of installed solar at end-2025, with roughly 12 GW of new solar targeted by 2030 within about 22 GW of new renewables. State utility CFE plans about US$6.9 billion for transmission, and broader electric-sector investment exceeds US$30-37 billion through 2030.

The honest unknowns matter. This path needs heavy upfront investment and regulatory reform so clean assets can compete. General transition experience also points to possible resistance from incumbents such as CFE and Pemex, and to difficulty drawing private capital without clear long-term policy signals.

The honest unknown is financing: legal private capital limits restrict how much of the renewables bill can be shifted off the state, which complicates any plan that assumes investors will fill the gap.

What investors should weigh

1. Credit and sovereign risk: Pemex debt is falling but high, ratings are speculative-grade, and sovereign support carries the weight.
2. Project and environmental risk: deepwater delays or cancellations could hit valuations and service providers.
3. Transition and policy risk: a shift toward grids could reduce the relative importance of upstream assets.
4. Infrastructure opportunity: transmission, distribution, solar and storage depend on bankable regulatory frameworks.

If IISD’s logic holds, you could see long-term returns migrate toward power infrastructure. Those returns depend on Mexican policy choices over the next decade, not on Pemex’s balance sheet.

Two paths, one test: which one reduces exposure to disruption?

Sovereignty is best measured by how much each path shrinks vulnerability to a supply shock, not by headline output. On that test, gas resilience matters more than crude volumes.

The trade-off is clear. State-led deepwater carries elevated credit and environmental risk in the short to medium term, while grid and renewable returns may prove steadier but rest on policy decisions not yet made.

Three signals will show which way Mexico leans:

• Whether the Pemex-Petrobras memorandum produces a sanctioned project
• Pemex’s interest burden relative to EBITDA
• Measurable progress on transmission and storage buildout

Past performance does not guarantee future results. Financial projections are subject to market conditions and various risk factors. Forward-looking statements are speculative and subject to change.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions.