The fight between Petroliam Nasional Bhd (Petronas) and the Sarawak government over oil and gas is heading to the Federal Court in January 2027.

But this is no longer simply a dispute over who gets to regulate the industry.

At its core, the case asks a much bigger question. Where does federal power end, and Sarawak’s constitutional authority begin?

The Federal Court has fixed five days from January 25, 2027, to hear separate petitions filed by Petronas and the Sarawak government over competing federal and state laws governing oil and gas.

Petronas is challenging the legislative competence of the Sarawak State Legislature over certain laws, arguing that the matters fall under federal jurisdiction.

Sarawak, meanwhile, is challenging the constitutional validity and continued applicability of three federal laws to the state: the Petroleum Development Act 1974, the Continental Shelf Act 1966 and the Petroleum Mining Act 1966.

In other words, both sides are asking the country's highest court to clarify who has the legal authority to make the rules.

Two Laws, One Industry

The dispute has become particularly visible through Sarawak's Distribution of Gas Ordinance 2016 and the growing role of Petroleum Sarawak Berhad, or Petros.

Sarawak maintains that its laws give the state authority over gas distribution, while Petronas operates under the federal framework established by the Petroleum Development Act.

For more than 50 years, the PDA has been the foundation of Malaysia's petroleum industry, giving Petronas ownership and exclusive rights to explore, exploit and obtain petroleum.

Sarawak is now challenging how that federal framework applies to the state.

And that brings the dispute back to 1963.

Why MA63 Matters

Sarawak's argument is tied to the constitutional arrangements surrounding the formation of Malaysia under the Malaysia Agreement 1963, or MA63.

The state maintains that its position within the Federation is not identical to that of the other states and that its constitutional safeguards must be considered when determining the extent of federal powers.

That makes the dispute bigger than Petronas versus Petros.

It is about how Malaysia's federal system was designed to work.

The Federal Constitution divides powers between Parliament and the states. But when federal and state laws appear to overlap, the question becomes much more complicated: which level of government actually has the constitutional power to legislate?

That is what the Federal Court will have to untangle.

Even The Borders Are Being Questioned

One of Sarawak's preliminary issues concerns the Sarawak (Alteration of Boundaries) Order in Council 1954, which relates to the boundaries of Sarawak's territorial waters.

Sarawak wants this issue considered before the main petitions are heard. Petronas and the Federal Government argue that it can instead be dealt with during the substantive hearing.

It may sound like a technical legal dispute, but the implications are significant.

Before deciding who has authority over resources, the court may first have to consider where that authority applies.

The Bigger Question

For decades, MA63 has featured in debates over Sarawak's autonomy, revenue and rights within Malaysia.

The Petronas dispute puts those questions into a courtroom.

The Federal Court is not being asked to settle a political argument over who deserves Sarawak's oil.

It is being asked to interpret the laws and constitutional arrangements that determine who has the power to decide what happens to it.

Whatever the court ultimately decides could therefore extend beyond the oil and gas industry.

Because underneath the billions of ringgits involved is a much bigger question.

In a federation formed in 1963, how much power belongs to Putrajaya and how much belongs to Sarawak?