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How the PEIP Works Internally: The Journey of One Euro From Entry to Return

February 13, 2026
Mercedes Fariña Salguero

When an investor evaluates an opportunity, beyond the narrative, one question always appears sooner or later:

“If I invest here… what exactly happens to my money?”

In the case of a PEIP (Structured Investment Plan in Petroleum), this question is especially relevant because the promise is not based on a financial index, but on real operations: plants, tanks, contracts, logistics, fuel moving in and out.

In this article, we will do something very simple:

Follow the journey of one euro inside a PEIP—from the moment it enters to the moment it returns with its yield.

1. Before the Euro Enters: What Must Exist for a PEIP to Be Created

No PEIP begins with money. It begins with the operation.

Before structuring anything, SPFO analyzes whether the project meets a series of minimum conditions:

Identified Real Asset

A plant, a logistics hub, a recurring supply operation—not an idea on a PowerPoint slide.

Industrial Operator With Track Record

A team that has already produced, stored, or moved product and knows how to manage day-to-day risks.

Clear Demand

Signed contracts or solid commercial relationships that justify the volume to be moved and the capacity to generate cash.

Mapped Risks

Understanding what can go wrong (price, counterparties, logistics, regulation) and what tools exist to mitigate it.

Only when these elements are on the table does it make sense to propose a PEIP.

In other words: the industrial and commercial opportunity exists first, and the investment vehicle is designed afterward—not the other way around.

Espacio de trabajo profesional con documentación y esquemas sobre una mesa, representando el análisis y la evaluación previa de una inversión antes de su puesta en marcha.

2. Capital Entry: How the Euro “Enters” the PEIP

Once the project is validated, the investment structure is defined:

  • Total round amount
  • Estimated time horizon
  • Target return range
  • Investor position within the structure

The euro contributed by the investor does not enter a “black box,” but a structure with clear rules:

  • A specific vehicle or defined framework
  • Agreements between SPFO, the operator, and the capital
  • A use of funds aligned with the real needs of the operation (not unrelated expenses)

From the very beginning, the euro has an operational purpose: it is meant to work in the plant, in the tanks, in the logistics flow—not to sit idle on a balance sheet.

3. Operational Allocation: What That Euro Becomes on the Ground

Depending on the type of PEIP, the same euro can take different forms.

In essence, it is directed toward three major areas:

Working Capital

Allows the purchase of product (diesel, biofuel, fuel oil, etc.), maintenance of strategic inventory, and the ability to seize price and volume opportunities.

In practice: more liters managed, more rotation, more total margin.

Operational and Logistical Improvements

Finances adjustments in the plant or hub: pumps, loading lines, tank optimization, auxiliary equipment.

The goal is clear: do more with the same infrastructure or reduce bottlenecks.

Commercial and Route Development

In some cases, part of the capital supports new distribution routes or pilot export operations that open additional markets.

In all cases, the euro leaves the financial side and moves to the industrial side: it becomes capacity to produce, store, move, and sell product.

4. Cash Flow Generation: Where the Return Is Created

The investor’s return does not appear magically.

It is generated in the difference between what the operation costs and what it is able to earn.

In a typical PEIP, cash flows come from:

Product Buy–Sell Margins

The differential between the price at which fuel or biofuel is purchased and the price at which it is sold, considering logistics and financial costs.

Logistical and Industrial Services

Income from storage, product handling, blending, pumping, plant services for third parties, etc.

Operational Efficiency

The more optimized the plant or hub, the greater the ability to rotate inventory, minimize downtime, and negotiate competitive conditions with suppliers and clients.

What matters is that the investor’s euro does not multiply in the air:

It does so through operations that can be measured, audited, and reported.

Terminal energética con tanques de almacenamiento, logística portuaria y transporte marítimo de combustible

5. From the Operation’s Cash Box to the Investor’s Cash Box: Return and Reporting

As the plant or operation generates margin, the results of the PEIP materialize:

The operation covers its direct costs (product, logistics, insurance, certifications, personnel).

Operational profits are obtained and, according to the agreed structure, are allocated to:

  • Partial reinvestment in the operation (to continue growing)
  • Remuneration of the capital that made that growth possible

In parallel, SPFO maintains a reporting framework for the investor that includes, among other elements:

  • Evolution of managed volumes
  • Average margins per operation or period
  • Relevant milestones (new clients, new routes, technical improvements)
  • Overall project status compared to initial scenarios

When the PEIP reaches its time horizon (e.g., 24–36 months), the investor should be able to answer two fundamental questions:

“What happened to my euro during this time?” “How much of that journey has already returned as capital + yield?”

The structure exists precisely for that: to organize the process and provide visibility.

6. How This Differs From a Traditional Financial Product

Comparing this journey with that of a classic financial product reveals a key difference:

In a traditional fund or ETF:

  • The investor’s money becomes shares in a portfolio of financial assets.
  • The link to the real operations of underlying companies is indirect.

In a PEIP:

  • The investor’s money becomes productive, logistical, or commercial capacity in a specific project.
  • The link to real operations is direct: tank, plant, vessel, contract.

This does not make the PEIP “better” by definition, but it does make it more tangible for the investor who wants to clearly see what is being financed.

7. Why Understanding the Euro’s Journey Matters Before Investing

There are two common mistakes when analyzing real-economy opportunities:

Focusing only on the expected return percentage

Without understanding where it comes from, what operation generates it, or what risks are involved.

Focusing only on the narrative of the asset

“Plant,” “terminal,” “vessel”… it sounds good, but without understanding the capital flow, it is difficult to assess the seriousness of the project.

The value of a PEIP lies not only in its potential profitability, but in the fact that it allows the capital’s path to be traced:

From contribution to repayment, through daily operations.

The clearer that path is, the easier it is to make informed decisions.

Análisis y explicación del modelo de inversión antes de tomar decisiones

Next Step: From the General Model to Your Own Analysis

The Quick Guide to PEIP Investment we have developed is designed precisely for this:

To organize the model, detail the structure, and accompany it with real examples of projects we are already executing.

Understanding how a PEIP works internally is the step before analyzing whether it:

  • Fits your risk profile
  • Fits your time horizon
  • Fits the way you want to gain exposure to the energy sector

From there, the conversation can focus on what truly matters:

Which types of projects make sense for you within the SPFO ecosystem.



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