International Pipeline Projects: Transit Agreements, Land Rights and State-to-State Legal Issues

A cross-border oil or natural gas pipeline is much more than an infrastructure project.

It is simultaneously a commercial asset, an energy-security instrument, a foreign investment, a land-use project and, in many cases, a geopolitical arrangement between several sovereign States.

A pipeline may begin at a production field in one country, cross hundreds or thousands of kilometres through one or more transit States and terminate at an export terminal, storage facility or interconnected transmission network in another jurisdiction. Along the route, the project may cross privately owned agricultural land, forests, public property, rivers, roads, railways, environmentally protected areas and international borders.

This creates a legal structure far more complicated than that of an ordinary construction project.

Before the first section of pipe is placed in the ground, governments, investors, lenders and operators must answer fundamental questions:

Who has the legal right to transport the hydrocarbons across each State?

Can a transit State interrupt the flow?

Who determines the transit tariff?

How will thousands of land parcels be acquired or subjected to easements?

What happens if domestic legislation changes after billions of dollars have already been invested?

Which law prevails if a host State’s domestic rules conflict with an international project agreement?

And perhaps most importantly:

What happens when a commercial pipeline dispute becomes a dispute between States?

Projects such as the Baku-Tbilisi-Ceyhan (“BTC”) crude oil pipeline and the Trans-Anatolian Natural Gas Pipeline (“TANAP”) illustrate how modern international pipelines are built not only with steel and engineering, but also through carefully constructed layers of international and domestic law.

1. Why Cross-Border Pipelines Require a Special Legal Architecture

An ordinary domestic pipeline may principally be governed by national energy regulation, environmental law, construction law and private contracts.

An international pipeline is different because no single State possesses complete legal authority over the entire route.

Each country retains sovereignty over the part of the pipeline located within its territory.

Consequently, a pipeline extending through three States may theoretically be exposed to:

• three different energy regulatory systems;
• three different land-acquisition regimes;
• three different tax systems;
• three environmental regimes;
• multiple customs procedures;
• separate construction standards;
• different foreign-investment rules; and
• different courts.

From a financing perspective, this fragmentation creates a major problem.

International investors may be unwilling to finance a multi-billion-dollar pipeline if a change of law in only one transit country can prevent the entire system from operating.

For that reason, major pipeline projects often create a special project-specific legal framework intended to coordinate the laws of the participating States.

2. The Core Legal Documents: IGA, HGA and Commercial Agreements

The legal architecture of an international pipeline frequently consists of several layers.

The most important are usually:

Intergovernmental Agreement (“IGA”)

An agreement concluded between the participating States.

Host Government Agreement (“HGA”)

An agreement between the project participants or project company and the government of the State through which the pipeline passes.

Project and Commercial Agreements

These may include:

• transportation agreements;
• throughput agreements;
• gas or oil sales agreements;
• shareholder agreements;
• operating agreements;
• construction contracts;
• financing agreements;
• land-right arrangements;
• interconnection agreements; and
• technical operating protocols.

Each layer performs a different function.

The commercial contracts determine how the project operates economically.

The international agreements establish the governmental framework within which those contracts can function.

3. What Does an Intergovernmental Agreement Do?

The IGA is often the constitutional document of a cross-border pipeline project.

Its principal function is to create common commitments between the States concerned.

Depending on the project, an IGA may regulate:

• recognition and implementation of the project;
• transit rights;
• border crossing;
• taxation;
• customs treatment;
• security;
• environmental coordination;
• land acquisition;
• permits;
• regulatory cooperation;
• technical standards;
• uninterrupted transportation;
• dispute resolution; and
• governmental guarantees.

The IGA may also require each participating State to ensure that its domestic authorities comply with the international commitments assumed under the project.

This can be crucial.

Without such coordination, a central government might politically support the pipeline while a local authority, tax administration, environmental authority or other public body prevents its construction or operation.

An effective IGA therefore attempts to align the State as an international actor with the State as a domestic regulator.

4. TANAP: A Clear Example of a Treaty-Based Pipeline Structure

The TANAP project provides an important example.

Its legal basis includes the Intergovernmental Agreement concerning the Trans-Anatolian Natural Gas Pipeline System between the Government of the Republic of Türkiye and the Government of the Republic of Azerbaijan and an accompanying Host Government Agreement.

The agreements were signed on 26 June 2012. They were subsequently approved and entered into force in Türkiye in 2013. The Host Government Agreement was later amended.

The arrangement demonstrates a central feature of strategic pipeline projects:

The pipeline is not governed solely by an ordinary licence granted to an energy company.

Instead, its legal position is reinforced through commitments created at the government-to-government level.

This creates substantially greater legal certainty for the project participants and lenders.

5. Host Government Agreements: Turning State Commitments into Project Rights

An HGA generally operates at a more detailed level than an IGA.

Where the IGA establishes commitments between States, the HGA normally defines the relationship between the host State and the project company or investors.

Depending on the project, the HGA may address:

• construction and operation rights;
• land acquisition;
• tax arrangements;
• customs exemptions;
• importation of equipment;
• foreign personnel;
• currency transfers;
• governmental assistance;
• environmental standards;
• permits and authorisations;
• security;
• changes in law;
• compensation;
• assignment and financing rights; and
• arbitration.

HGAs are especially important because pipeline investments require very large upfront expenditure.

The project company may invest billions before earning its first transportation revenue.

Investors therefore seek legal protection against the possibility that, once the infrastructure has been constructed and cannot economically be relocated, the host State alters the conditions under which the investment was made.

This vulnerability is sometimes described in infrastructure investment analysis as the “hold-up” problem.

Once a pipeline is underground, the investor cannot simply move it to another country.

6. Stabilisation and Change-of-Law Protection

One of the most sensitive issues in major infrastructure agreements is regulatory change.

Suppose a pipeline project is developed based on an agreed tax regime and, five years later, the transit State introduces:

• a new transit tax;
• an additional customs duty;
• a discriminatory environmental charge;
• a new foreign-currency restriction; or
• a regulatory requirement that substantially changes project economics.

Which rules should apply?

International project agreements may address this through different types of stabilisation or economic-equilibrium clauses.

A traditional stabilisation clause may seek to preserve the legal framework existing when the project agreement was concluded.

A more flexible economic-equilibrium provision may allow the State to change its laws but require compensation or contractual adjustment if the change materially affects the project’s agreed economic position.

Modern agreements must balance two competing interests:

The State must retain legitimate regulatory authority.

But:

The investor requires predictability for a capital-intensive investment designed to operate for decades.

The drafting of change-of-law provisions is therefore one of the most important aspects of pipeline project development.

7. Transit Rights: The Legal Heart of a Cross-Border Pipeline

Transit is what distinguishes an international pipeline from a domestic one.

Assume natural gas originates in State A and is sold to buyers in State C.

The gas must cross State B.

State B may not own the gas, produce it or consume it. Yet without State B’s territory, the commercial transaction cannot occur.

State B therefore occupies an exceptionally powerful legal position.

A transit regime must determine:

• whether transportation is permitted;
• which volumes may be transported;
• the duration of the transit right;
• whether capacity can be expanded;
• how tariffs are determined;
• whether third parties may obtain access;
• which technical rules apply;
• whether transit can be interrupted; and
• what remedies apply if the transit State interferes with transportation.

For a pipeline investor, the legal security of the transit right itself may be as valuable as ownership of the physical pipeline.

8. Energy Charter Treaty and the Principle of Energy Transit

The Energy Charter Treaty (“ECT”) has historically provided one of the most developed multilateral legal frameworks concerning international energy transit.

The Treaty addresses reliable cross-border energy flows through pipelines, electricity grids and other transportation facilities and contains specific obligations relating to transit.

Article 7 addresses the transit of Energy Materials and Products.

Among other principles, the ECT framework seeks to facilitate transit consistently with the principle of freedom of transit and addresses discrimination based on factors including origin, destination or ownership.

The treaty framework has also included obligations concerning established energy flows and a specialised procedure for resolving transit disputes.

These provisions reflect an essential international energy-law principle:

Commercial disagreements should not automatically become physical interruptions of cross-border energy supply.

That principle becomes particularly important where several downstream countries depend on a single transit corridor.

9. Can a Transit State Stop the Pipeline?

The answer depends on the applicable treaty, IGA, HGA, domestic law and factual circumstances.

No international pipeline can realistically operate on the assumption that transportation will never be interrupted.

Possible causes include:

• technical emergencies;
• pipeline integrity risks;
• natural disasters;
• war;
• terrorism;
• sanctions;
• non-payment;
• capacity disputes;
• environmental incidents;
• force majeure; and
• governmental measures.

The legal framework must therefore distinguish between:

a legitimate temporary interruption necessary to protect the system

and

an unlawful political or commercial interference with transit.

This distinction has enormous economic consequences.

A single day of interruption in a major international pipeline can affect producers, transit States, downstream purchasers, energy markets and government revenues simultaneously.

10. Transit Tariffs: When Transportation Becomes a Sovereign Issue

Every pipeline requires an economic mechanism for transportation.

Transit States may receive:

• transit fees;
• taxes;
• capacity payments;
• throughput-related revenues; or
• other project benefits.

The methodology used to determine those amounts can become politically sensitive.

Questions may include:

• Is the tariff fixed or regulated?
• Is it indexed to inflation?
• Is it denominated in local or foreign currency?
• Does it change according to volume?
• Can the State impose additional taxes?
• Can the tariff be revised unilaterally?
• Are domestic and international shipments treated equally?
• Is there a ship-or-pay obligation?

Pipeline investors generally seek long-term tariff predictability.

Transit governments may prefer flexibility.

The resulting compromise must normally survive for decades.

Poor drafting at the development stage can therefore produce substantial disputes later.

11. Ship-or-Pay and Capacity Allocation

Pipeline economics depend heavily on throughput.

A pipeline constructed to transport 30 billion cubic metres of gas annually may be economically unsustainable if shippers use only a fraction of its capacity.

Transportation agreements therefore frequently use ship-or-pay mechanisms.

Under such arrangements, a shipper may be required to pay for an agreed level of transportation capacity even if it fails to deliver the corresponding volume.

This shifts part of the demand risk away from the pipeline operator.

Other provisions may govern:

• reserved capacity;
• interruptible capacity;
• expansion capacity;
• nominations;
• pressure specifications;
• quality requirements;
• balancing;
• measurement;
• line pack;
• delivery points; and
• losses.

Although these matters appear highly technical, they frequently determine the legal allocation of hundreds of millions of dollars in project risk.

12. Land Rights: A Pipeline Is Thousands of Property Disputes Connected Together

Perhaps the largest domestic-law challenge in pipeline construction is land.

A pipeline hundreds of kilometres long may cross thousands of separate parcels.

The operator may require different rights over different areas.

These may include:

• permanent ownership;
• permanent easements;
• temporary easements;
• construction corridors;
• access rights;
• above-ground installation sites;
• compressor station land;
• valve station sites;
• roads; and
• temporary work areas.

It is usually neither commercially necessary nor legally appropriate to acquire full ownership of every parcel along the route.

Instead, pipeline projects frequently establish easement or equivalent rights permitting the pipeline to remain beneath the land while the surface continues to be used, subject to safety restrictions.

13. TANAP and Land Acquisition in Türkiye

TANAP provides an instructive example of how this process can operate.

Project documentation identifies BOTAŞ as the Land Rights Entity responsible for carrying out land acquisition and expropriation procedures for the project.

Land rights may involve expropriation, unrestricted or exclusive rights, easements or temporary easements depending on project requirements.

The project documentation also recognises that land returned to owners or users following construction remains subject to continuing restrictions necessary for pipeline safety.

For example, certain construction, excavation, planting and heavy-vehicle activities within the relevant pipeline corridor require restriction or consent.

This illustrates an important concept:

Land acquisition for a pipeline does not end when construction ends.

The operator requires continuing legal control sufficient to protect the infrastructure for the entire operational life of the pipeline.

14. Expropriation Must Be Distinguished from Pipeline Investor Protection

The word expropriation appears in pipeline projects in two very different contexts.

Land Expropriation

The State may acquire or restrict privately owned land so that the pipeline can be constructed.

This generally requires public interest and compensation under domestic constitutional and expropriation law.

Investment Expropriation

A foreign pipeline investor may claim that the host State itself has unlawfully taken or destroyed the value of the investment.

This may arise under:

• a bilateral investment treaty;
• the Energy Charter Treaty where applicable;
• an investment contract; or
• another source of international law.

The two concepts should not be confused.

In one situation, the project benefits from the State’s expropriation powers.

In the other, the project seeks protection against State expropriation.

15. Land Compensation and Social Licence to Operate

Compliance with formal expropriation rules may not, by itself, be enough for a successful pipeline.

Major infrastructure projects can affect:

• farmers;
• tenants;
• seasonal land users;
• informal users;
• businesses;
• grazing rights;
• local communities; and
• vulnerable populations.

International lenders may therefore require standards going beyond the minimum requirements of domestic land law.

Projects financed by institutions such as the World Bank Group or other international financial institutions may have to address:

• livelihood restoration;
• stakeholder engagement;
• involuntary resettlement;
• vulnerable groups;
• grievance mechanisms; and
• environmental and social monitoring.

The BTC project, for example, involved extensive environmental and social assessment, land acquisition and compensation processes, with international lenders playing a significant role in the project’s environmental and social framework.

This produces an important practical lesson:

A pipeline may possess all necessary governmental permits and still face serious project risk if its relationship with affected communities is poorly managed.

16. Environmental Regulation Across Several States

Environmental risk becomes especially difficult when a single physical system crosses different jurisdictions.

An oil spill does not necessarily respect administrative or national boundaries.

Legal documents therefore need to address issues such as:

• environmental impact assessment;
• route selection;
• biodiversity;
• water crossings;
• hazardous materials;
• emergency response;
• restoration;
• waste;
• emissions;
• pipeline integrity;
• decommissioning; and
• transboundary environmental effects.

Standards may arise from several sources simultaneously:

Domestic environmental law

IGA/HGA commitments

Financing requirements

International environmental standards

and

Contractual technical specifications

The investor must identify which requirement imposes the highest practical compliance standard.

17. Pipeline Security Is Both a Commercial and Sovereign Responsibility

Cross-border pipelines are strategically important infrastructure.

They can be exposed to:

• terrorism;
• sabotage;
• cyberattacks;
• theft;
• armed conflict;
• civil unrest; and
• deliberate interference.

The allocation of security responsibility is therefore a major legal issue.

The relevant agreements may determine:

• which State body provides security;
• whether the operator may employ private security;
• who bears the cost;
• how emergency access is handled;
• what happens during armed conflict; and
• whether security failures create compensation rights.

A government cannot necessarily guarantee that no attack will ever occur.

However, investment agreements may require the State to exercise a defined standard of protection.

Where an applicable investment treaty contains a full protection and security obligation, serious security failures may also generate questions of international investment law.

18. Sanctions Have Become a Central Pipeline Risk

Modern pipeline law cannot be separated from international sanctions.

A pipeline project may involve:

• sanctioned States;
• sanctioned shareholders;
• sanctioned banks;
• restricted equipment;
• controlled technology;
• dollar or euro payments;
• insurance restrictions;
• shipping restrictions; or
• export controls.

A pipeline may be physically capable of transporting oil or gas while legally incapable of receiving payment.

Contractual documentation should therefore address:

• sanctions representations;
• compliance obligations;
• payment alternatives;
• prohibited counterparties;
• suspension rights;
• termination;
• force majeure;
• change in law; and
• sanctions-related allocation of risk.

One of the most difficult questions is whether sanctions constitute force majeure.

The answer is not automatic.

It depends on the contract’s wording, governing law, foreseeability, causation and whether alternative lawful performance remains possible.

19. War and Geopolitical Conflict

Cross-border energy infrastructure can rapidly become entangled in geopolitical conflict.

Where a pipeline passes through or near an area of armed conflict, questions may arise concerning:

• physical damage;
• government requisition;
• border closure;
• loss of access;
• sanctions;
• emergency legislation;
• military use;
• supply interruption; and
• force majeure.

The commercial documentation should therefore operate together with the project’s international legal framework.

This is particularly important because a dispute that begins as a transportation dispute between two companies may evolve into a diplomatic disagreement involving several governments.

20. State-to-State Disputes

Not every pipeline dispute is investor versus State.

Some disputes arise directly between governments.

Examples might include disagreements concerning:

• interpretation of an IGA;
• transit tariffs;
• border delivery;
• flow interruptions;
• taxation;
• environmental obligations;
• capacity;
• security; or
• implementation of State commitments.

The Energy Charter Treaty framework, for example, provides mechanisms for disputes between Contracting Parties and includes a specialised conciliation procedure for certain transit disputes.

An IGA may separately establish its own dispute mechanism.

Possible procedures include:

• diplomatic negotiation;
• consultation;
• mediation;
• conciliation;
• expert determination; and
• State-to-State arbitration.

The dispute clause must reflect the political character of the relationship.

States may be reluctant to allow ordinary domestic courts in another State to determine questions arising from an international energy treaty.

21. Investor-State Arbitration

A separate dispute may arise between the foreign investor and a host State.

For example, an investor may allege that the State:

• unlawfully terminated project rights;
• confiscated assets;
• discriminated against the project;
• imposed arbitrary regulatory measures;
• prevented the transfer of revenues;
• destroyed the economic value of the investment; or
• failed to honour protected commitments.

Depending on the legal structure, claims may arise under:

• a bilateral investment treaty;
• a multilateral investment treaty;
• the Energy Charter Treaty where applicable;
• an HGA containing arbitration consent; or
• another investment agreement.

UNCITRAL Arbitration Rules are widely used in commercial, investor-State and even State-to-State arbitration.

Where treaty conditions are satisfied, other proceedings may take place under the ICSID framework.

The critical issue is consent.

International arbitration jurisdiction cannot simply be assumed because an investor is foreign.

The relevant treaty or contract must provide a valid legal basis.

22. Commercial Arbitration: A Third Layer of Dispute Resolution

There may therefore be three separate dispute-resolution tracks in a single pipeline project:

State v. State

A dispute under the IGA or international law.

Investor v. State

A dispute under an investment treaty or HGA.

Company v. Company

A dispute under a transportation, construction, supply or shareholder agreement.

This distinction is fundamental.

Suppose a government interrupts transit.

The same event could theoretically trigger:

• a State-to-State treaty dispute;
• an investment claim by the pipeline investor;
• a contractual claim by the shipper against the pipeline operator; and
• claims under gas sale agreements downstream.

One physical event can therefore produce multiple proceedings under different laws.

23. Enforcement of Arbitral Awards

Winning an arbitration is not the final step.

The award must be enforceable.

The 1958 New York Convention is a cornerstone of international commercial arbitration because Contracting States undertake to recognise arbitration agreements and generally recognise and enforce qualifying foreign arbitral awards.

But enforcement against a sovereign State can involve additional questions.

These may include:

• State immunity;
• immunity from execution;
• commercial versus sovereign assets;
• central-bank assets;
• waiver of immunity; and
• the location of attachable assets.

Consequently, pipeline dispute clauses should be designed with enforcement in mind from the beginning.

A favourable arbitral award has limited commercial value if there is no realistic method for enforcing it.

24. Financing Adds Another Layer of Legal Complexity

International pipelines are usually financed through combinations of:

• sponsor equity;
• commercial bank financing;
• export credit;
• development-finance institutions;
• sovereign financing; and
• project finance.

Lenders need assurance that the project will continue operating throughout the debt tenor.

They may therefore require:

• security over project-company shares;
• assignment of project agreements;
• assignment of receivables;
• account security;
• direct agreements;
• lender cure rights;
• step-in rights; and
• protection against termination of key licences.

Governments may also be required to recognise certain lender rights under the HGA or other project agreements.

This produces another important principle:

Bankability is partly a legal concept.

A technically feasible pipeline may still be unfinanceable if its licences, land rights and governmental commitments cannot survive default, transfer or lender enforcement.

25. Direct Agreements and Lender Step-In Rights

Suppose the project company breaches an obligation under a key concession or governmental agreement.

Immediate termination could destroy both the project and the lenders’ collateral.

Lenders therefore often seek a direct agreement with the relevant governmental or contractual counterparty.

The agreement may require the counterparty to:

1. notify the lenders before terminating the project agreement;
2. provide a cure period;
3. allow lenders to remedy defaults; and
4. permit an approved substitute operator or investor to take control.

For infrastructure lenders, these rights can be as important as the mortgage or share pledge itself.

26. Taxation and Customs

A pipeline crossing several jurisdictions can face an extraordinarily complex tax structure.

Issues may include:

• corporate tax;
• withholding tax;
• VAT;
• customs duties;
• importation of construction equipment;
• transit charges;
• payroll tax;
• permanent establishment;
• depreciation;
• transfer pricing; and
• repatriation of profits.

Project agreements sometimes establish special tax regimes or commitments concerning discriminatory future taxation.

Tax assumptions are critical to the financial model.

A project financed on the assumption of a particular tax burden may become economically unsustainable if unexpected taxes are imposed after construction.

27. Who Owns the Gas or Oil While It Is in Transit?

Ownership of transported hydrocarbons should be distinguished from ownership of the pipeline.

The pipeline company may act only as transporter.

Title to the oil or gas may remain with the shipper or transfer at a contractually defined delivery point.

The relevant contracts must therefore address:

• title transfer;
• risk of loss;
• custody;
• measurement;
• quality;
• commingling;
• losses;
• contamination;
• delivery shortfall; and
• force majeure.

These provisions become particularly complicated in gas pipelines where molecules from several shippers may physically mix inside the same system.

The law therefore follows contractually allocated quantities and rights, not necessarily specific identifiable molecules.

28. Interconnection Creates Legal Dependency

International pipelines rarely operate in isolation.

They connect with:

• production facilities;
• national transmission networks;
• LNG terminals;
• storage facilities;
• downstream pipelines; and
• export terminals.

TANAP, for example, forms a key part of the broader Southern Gas Corridor, linking Azerbaijani gas flows across Türkiye toward European markets.

This means the legal viability of one pipeline may depend on infrastructure located outside its own project boundaries.

Interconnection agreements must therefore address:

• delivery pressure;
• gas quality;
• metering;
• nomination procedures;
• capacity;
• maintenance coordination;
• emergency procedures; and
• liability for downstream interruption.

A pipeline may perform perfectly and still fail to deliver commercially if the interconnected system does not accept the product.

29. Baku-Tbilisi-Ceyhan: A Model of Multi-State Pipeline Law

The BTC pipeline is one of the clearest examples of a project requiring a sophisticated international legal structure.

The project transports crude oil through Azerbaijan, Georgia and Türkiye to the Mediterranean coast.

Its development involved an Intergovernmental Agreement together with separate Host Government Agreements addressing the project within the participating States. IFC documentation concerning the project notes the disclosure of the IGA and three HGAs as significant elements of the project’s legal framework.

The project illustrates why pipeline law is inherently multi-layered.

An international oil pipeline cannot realistically be governed merely by three unrelated national regulatory systems.

Its commercial viability depends on creating a legally coherent corridor across all participating States.

30. TANAP: Land Rights and International Law Working Together

TANAP illustrates the same principle from the perspective of natural gas.

Project documentation explains that the IGA established the basis for transportation of natural gas across Türkiye and Azerbaijan-related infrastructure arrangements, while the HGA provided the project-specific framework in Türkiye.

The Turkish State also designated governmental institutions for the acquisition and granting of land rights necessary for construction and operation.

The result is a layered structure:

International Agreement

↓

Host Government Obligations

↓

Turkish Implementing Framework

↓

Land Acquisition and Easements

↓

Commercial Pipeline Operation

This is the architecture that transforms an international political commitment into an operational pipeline.

31. The Most Important Contractual Risks

From the perspective of sponsors, investors and lenders, the principal legal risks in an international pipeline project commonly include:

Transit Risk

Will hydrocarbons be permitted to cross every required jurisdiction for the entire project term?

Political Risk

Could a change of government fundamentally alter the State’s approach?

Change-of-Law Risk

Can new legislation materially affect project economics?

Land Risk

Are permanent and enforceable corridor rights available?

Environmental Risk

Can environmental approvals be obtained and maintained?

Tariff Risk

Can transit or transportation charges be altered?

Volume Risk

Will sufficient throughput be available?

Currency Risk

Can revenues be received and transferred in the required currency?

Sanctions Risk

Could payments or transportation become legally prohibited?

Security Risk

Can the pipeline operate safely during political instability?

Enforcement Risk

If commitments are breached, is there an effective remedy?

Each risk should be allocated to the party best positioned to manage it.

32. A Legal Checklist Before Developing an International Pipeline

Before capital is committed, sponsors should be able to answer at least the following questions.

States: Which countries will the pipeline cross?

Treaties: Is an IGA required?

Host-State Commitments: Will HGAs be concluded?

Transit: Is the transit right legally guaranteed?

Duration: Does the transit regime last as long as the project?

Land: Who will obtain the corridor rights?

Expropriation: Which government entity is responsible?

Tariffs: How are transportation charges calculated?

Taxes: Is the fiscal regime predictable?

Permits: Which authorities must approve the project?

Environment: Which domestic and international standards apply?

Security: Who protects the infrastructure?

Sanctions: What happens if a participant becomes sanctioned?

Change of Law: Who bears regulatory-change risk?

Financing: Do lenders receive direct and step-in rights?

Disputes: Which disputes go to courts, commercial arbitration, investor-State arbitration or State-to-State arbitration?

Enforcement: Where can any resulting award actually be enforced?

Without clear answers, the project may be technically developed but legally fragile.

33. The Pipeline Must Be Legally Continuous Across Borders

The central challenge in international pipeline projects can be reduced to one concept:

legal continuity.

The physical pipeline must remain connected from the producing State to the final market.

The legal rights supporting that pipeline must be equally continuous.

If a project possesses strong legal rights in States A and C but weak transit protection in State B, the whole investment is exposed.

A pipeline cannot simply bypass an adverse legal decision in the middle of its route.

This is why the weakest legal jurisdiction along the corridor may determine the risk profile of the entire project.

34. Long-Term Projects Require Long-Term Legal Thinking

International pipelines can operate for several decades.

Over that period, governments change.

Laws change.

Energy policies change.

Currency regimes change.

Sanctions change.

Markets change.

Technology changes.

International relations change.

The legal structure must therefore be designed not merely for the political and commercial environment existing on the signing date, but for uncertainties that may arise twenty or thirty years later.

This is the difference between an ordinary transaction document and a genuine international infrastructure legal framework.

Conclusion: A Pipeline Is a Treaty, a Property Network and an Investment at the Same Time

International oil and natural gas pipelines are among the clearest examples of the interaction between commercial law and public international law.

Their operation requires far more than engineering expertise.

A successful cross-border pipeline may depend simultaneously on:

intergovernmental agreements, host government agreements, transportation contracts, international investment law, energy regulation, land law, expropriation law, environmental law, tax law, sanctions compliance, project finance and international arbitration.

The BTC and TANAP projects demonstrate how major energy corridors can be supported through treaty-level commitments combined with project-specific agreements and detailed domestic implementation mechanisms.

For governments, these projects raise questions of sovereignty, energy security and long-term foreign policy.

For investors, the priorities are different:

Can the pipeline be built?

Can hydrocarbons legally cross every border?

Can the land rights remain effective for the entire project term?

Can the State change the economic bargain after investment?

Can transit be interrupted?

And if the legal structure fails, can the investor obtain and enforce an effective remedy?

The commercial value of a pipeline ultimately depends on uninterrupted movement from origin to destination.

For that reason, the most valuable asset in a cross-border pipeline project may not be the steel buried beneath the ground.

It may be the international legal framework that allows the energy to keep flowing across borders.

This article is intended for general informational purposes only and does not constitute legal advice. International pipeline projects should be evaluated individually in light of the jurisdictions concerned, applicable intergovernmental and host-government agreements, domestic energy and land legislation, environmental requirements, sanctions regimes, financing structure and relevant international investment treaties.