Neuquén's Local Supplier Law: How Ley 3338 Decides Who Wins Vaca Muerta Contracts

If you supply the oil and gas industry and you are looking at Argentina, you are looking at Vaca Muerta. The investment case is well documented and the operators are names you already know. What tends to be researched last — and it is the part that can decide whether you are even considered — is that Neuquén, the province where most of the play sits, has its own local content law.

It is called Ley 3338, the Ley de Fortalecimiento y Desarrollo de la Cadena de Valor Neuquina, and it obliges operators to prefer certified local suppliers in a defined share of what they contract every year. It is provincial, not national, which is exactly why it falls through the cracks of most market-entry research. This guide explains what it does, how the certification is scored, and the one consequence that matters most: how you structure your Argentine company affects whether you qualify.

What the law does

Ley 3338 was passed by the Neuquén provincial legislature in May 2022 and regulated by Decreto 2471/2022, signed at the end of that December. It replaced the province's earlier local content scheme (Ley 3032). Its stated purpose is to strengthen local suppliers in the value chain of the province's hydrocarbons and mining industries.

The mechanism has two halves. On one side, a register of companies certified as empresa neuquina. On the other, a set of obligated parties — operators and specialised service companies, reported at around fifty — that must report their contracting and give preference to certified suppliers.

The administering authority is the Centro PyME-ADENEU, which sits under the provincial Ministry of Economy, Production and Industry. Certification is applied for through its platform.

The 60% rule — and what "preference" actually means

The headline obligation is that operators must give preference to certified SMEs in at least 60% of the works and services they contract in a year. That number is what makes the scheme worth understanding: it is not a nudge, it is a share of the operator's annual contracting that has to go through certified suppliers.

But read the mechanism carefully, because this is where casual summaries overstate it. The preference applies under equal technical and economic conditions. A certified supplier does not beat a better or cheaper bid on paper — it wins the tie. And the regulation adds a second mechanism that goes further: where a non-certified supplier's offer is economically more advantageous, a local company may be given the chance to match it, provided it demonstrates the technical and economic capacity to perform the contract. In practice that is a right of first refusal.

So the honest way to describe Ley 3338 is not "certified suppliers get the work". It is: at equal footing you win, and when you are behind you may get a second chance that your competitor does not get. For a market where bids are frequently close, that is a decisive advantage rather than a decorative one.

How certification is scored

Certification is not a yes-or-no box. It is a score, and the regulation sets two bands:

• Rango A — 80 points or more.
• Rango B — at least 65 and under 80.

According to the administering authority, the eligibility calculation looks at:

• the company's domicile;
• an income coefficient;
• the composition of its share capital;
• the number of jobs it generates; and
• the number of bases and offices it holds in provincial territory.

Those five variables are the whole story for a foreign company, and they deserve to be read slowly. Three of them — domicile, bases and offices, and local employment — are about physical presence in Neuquén. One of them, share capital composition, is about who owns you. None of them is about how good you are.

We have not published the weighting of each variable here because we have not seen the scoring grid itself; ADENEU holds it and it should be requested directly before anyone makes a decision on the strength of a score they have estimated themselves.

Why this makes your Argentine structure a commercial decision

Here is the part that changes how you plan an entry.

Most foreign companies treat the Argentine entity as an administrative step: incorporate somewhere convenient — usually Buenos Aires, because that is where the lawyers and accountants are — and get on with the commercial work. Under Ley 3338 that convenience has a price. A company incorporated and domiciled in Buenos Aires, with no office in Neuquén and no local employees, is scoring against itself on three of the five variables before anyone looks at its capability.

This does not mean you should rush to move a company to Neuquén. It means the question belongs in the structuring conversation rather than after it:

• Domicile and presence. Registering a branch, base or office in the province is a different — and lighter — decision than moving a company's registered seat between jurisdictions, which requires amending the bylaws, registering with the provincial registry, publishing notices and deregistering in the original jurisdiction.
• Local employment. Hiring in Neuquén rather than staffing a project remotely from Buenos Aires is a cost decision that now also carries a scoring consequence. Argentine employment rules apply the same way wherever you hire.
• Share capital. This is the variable a wholly foreign-owned subsidiary cannot solve by relocating. If capital composition is scored, a 100% foreign-held company will score lower on it than a locally-held one — which is worth knowing before you assume Rango A is reachable, and worth raising early if a joint venture or local partner was ever on the table for other reasons.

The general point is one we make in almost every guide on this site: in Argentina the choices that look purely administrative — branch or subsidiary, which province, who holds the shares — tend to have commercial consequences that surface years later. This is an unusually clean example, because here the consequence is written into a statute with a percentage attached.

What the law does not do

Four limits worth stating plainly, because overstating this scheme would be easy:

• It is not a barrier to entry. Nothing stops a non-certified foreign supplier from winning work in Neuquén. The preference operates at equal conditions, and the first-refusal mechanism requires the local company to actually match the offer and prove it can deliver.
• It is provincial. Ley 3338 governs Neuquén. Other provinces with hydrocarbons or mining activity have their own regimes, with their own criteria — Argentina has twenty-four jurisdictions and no single local content rule.
• It is sectoral. The scheme is built around the hydrocarbons and mining value chain. It is not a general procurement preference for every industry in the province.
• It targets SMEs. The preference is framed around certified small and medium enterprises, which is a further reason to check eligibility against the actual criteria rather than assuming a large foreign group's local subsidiary fits the profile.

Does it work? What the province reports

The provincial government reported in March 2026 that the second half of 2025 saw contracting levels for certified companies rise by twenty percentage points against the same period the year before, and that more than 800 Neuquén companies now hold certification. The register has grown quickly: it stood at around 607 companies in April 2025, itself an increase of more than 160% on 2024. The province attributes the growth to a widening of the eligible universe, a simplified certification process, and — the telling one — obligated parties starting to actually require the certificate from their suppliers.

That last point is the practical signal. A local content rule matters when buyers begin asking for the document. In Neuquén, they have started.

What to do with this

• If Vaca Muerta is a target market, request the scoring grid from Centro PyME-ADENEU before you design the structure — not after you have incorporated.
• Ask your prospective clients, directly, whether they are obligated parties under Ley 3338 and whether they require the certificate from suppliers. The answer varies and it is a fair question to ask.
• Treat domicile, provincial presence and local hiring as commercial variables with a fiscal and legal cost, and price that cost against the share of contracting the preference covers.
• Do not move a company's registered seat between provinces to chase points until you have the grid, the score estimate and a clear read on whether your capital structure caps you anyway.
• Check whether the same logic applies in the other provinces you are targeting. Assume it does, until you confirm otherwise.

This guide is general information, not legal or tax advice. Ley 3338 and Decreto 2471/2022 are provincial rules and the certification criteria are administered by Centro PyME-ADENEU, which should be consulted for the current scoring methodology and requirements. Sources were verified on 26 August 2026.