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Economy & Business30 Oct 2026 · about 6 min

SC appoints ex-judge Ranjana Desai to mediate ONGC-RIL gas dispute

The brief

The Supreme Court appointed former judge Ranjana Prakash Desai to mediate the long-running dispute between the Centre and an RIL-led consortium over gas allegedly taken from ONGC’s fields. The move matters because earlier settlement discussions failed, leaving the court to consider mediation or a merits-based judgment. Justice Desai will act as the sole mediator. She can seek help from two domain experts, with one proposed by each party. The dispute concerns gas that allegedly migrated into the consortium’s adjoining KG-D6 block and was extracted between 2009 and 2013. The court left the schedule to Justice Desai and asked the parties to contact her to fix dates. If mediation succeeds, the parties may reach an amicable settlement. If it fails, the Supreme Court may decide the case on its merits, as the attorney general indicated.

01

What did the Supreme Court appoint former judge Ranjana Desai to do in the ONGC-RIL dispute?

The Supreme Court appointed former judge Ranjana Prakash Desai to mediate the long-running dispute between the Centre and an RIL-led consortium over gas allegedly taken from ONGC’s fields. The move matters because earlier settlement discussions failed, leaving the court to consider mediation or a merits-based judgment.

Justice Desai will act as the sole mediator. She can seek help from two domain experts, with one proposed by each party. The dispute concerns gas that allegedly migrated into the consortium’s adjoining KG-D6 block and was extracted between 2009 and 2013.

The court left the schedule to Justice Desai and asked the parties to contact her to fix dates. If mediation succeeds, the parties may reach an amicable settlement. If it fails, the Supreme Court may decide the case on its merits, as the attorney general indicated.

02

What is mediation, and how is it different from a court deciding a case or an arbitrator issuing a binding award?

Mediation is a structured process in which a neutral person helps opposing parties negotiate an agreement. The mediator does not normally decide who wins. This makes mediation different from a court hearing, where judges assess the law and evidence and issue a judgment that determines the dispute.

In this case, Justice Ranjana Prakash Desai is asked to explore an amicable resolution. She can use two domain experts to assist her, but the parties must still agree to settlement terms. The article records that earlier discussions had not produced a viable solution.

An arbitrator, by contrast, hears the parties and issues an arbitral award under the applicable agreement. The article says the consortium invoked arbitration and that a tribunal ruled in its favour in July 2018. The Supreme Court is now considering mediation or deciding the remaining matter on its merits.

03

How much money is the Union government seeking from the RIL-led consortium, including the claimed gains and interest?

The Union government is seeking nearly $1.674 billion from the RIL-led consortium. The claim has two parts: nearly $1.5 billion in alleged gains and approximately $174 million in interest. The government describes the requested remedy as disgorgement, meaning repayment of gains it says were improperly obtained.

The claim relates to gas allegedly extracted from ONGC’s offshore blocks after it migrated into the adjoining KG-D6 block. The alleged extraction occurred between 2009 and 2013. The consortium operated KG-D6, where commercial production began in April 2009.

The amount remains a claim in the dispute, not a confirmed payment. The consortium has denied wrongdoing and argued that underground hydrocarbon movement is a natural geological process. Justice Desai’s mediation will explore whether the parties can settle; otherwise, the Supreme Court could decide the matter on merit.

04

What is the central allegation about gas moving from ONGC's fields into the adjoining KG-D6 block?

The central allegation is that natural gas from ONGC’s offshore blocks crossed underground into the neighbouring KG-D6 block operated by the RIL-led consortium. ONGC says the consortium then extracted gas that originally came from its reservoirs. The dispute therefore concerns ownership, benefit and payment for the gas.

ONGC raised the allegation in 2013. It said the consortium had drilled wells close to the boundary of its fields and benefited from gas that had migrated across it. The Union government claims the consortium gained nearly $1.5 billion, plus about $174 million in interest.

The consortium denies wrongdoing. It argues that hydrocarbons can move naturally between underground reservoirs because of pressure differences, and that this movement cannot be stopped by artificial means. The Supreme Court has appointed Justice Desai to seek a settlement after earlier discussions failed.

05

Why does the dispute matter for ONGC, the Union government, and the RIL-led consortium if the gas was extracted and sold?

The dispute matters because extracting and selling the gas creates a large financial and legal question. ONGC says gas from its fields entered the consortium’s KG-D6 block and was produced there. The Union government seeks nearly $1.5 billion in alleged gains and approximately $174 million in interest.

For ONGC, the issue concerns gas it says came from its reservoirs and the alleged loss of value from another operator’s production. For the Union government, it concerns recovery of money it says the consortium gained improperly. For the consortium, the outcome could affect its financial liability and the legal treatment of natural gas movement between fields.

The consortium denies wrongdoing. It says migration results from natural underground pressure differences and cannot be prevented artificially. The dispute now goes to mediation, but a failed process could lead to a Supreme Court decision on the merits.

06

What could happen next if Justice Desai's mediation produces a settlement, or if it fails and the Supreme Court decides the case on its merits?

If Justice Ranjana Prakash Desai’s mediation succeeds, the Centre and the RIL-led consortium could reach an amicable settlement instead of leaving the Supreme Court to decide the dispute. Such an agreement could resolve the claims over gas extraction and the government’s demand for disgorgement, subject to terms accepted by the parties.

Justice Desai is the sole mediator and may appoint two domain experts, one proposed by each side. The court declined to impose a deadline and left the schedule to her. Counsel for both sides and the attorney general assured the court of their assistance.

If mediation fails, the Supreme Court may decide the matter on its merits. That would require the court to address the gas-migration allegations, the consortium’s geological explanation and the government’s financial claim. The article does not state what result the court would reach or specify any settlement terms.

07

What are underground hydrocarbon reservoirs and production-sharing contracts, and why can natural gas migrate between adjoining fields?

Underground hydrocarbon reservoirs are subsurface rock formations that contain oil or natural gas. A production-sharing contract is an agreement under which a government and a contractor set rules for exploring, producing and sharing hydrocarbons. The article says the Centre and the consortium signed such a contract in 2000 for the KG basin.

The dispute involves adjoining offshore fields. ONGC says gas from its reservoirs moved into the consortium’s KG-D6 block and was extracted there. The consortium says hydrocarbons can move naturally across underground reservoirs because of pressure differences, and that artificial prevention is impossible.

This mechanism is central to the case because the parties disagree about whether the produced gas should be treated as the consortium’s permitted production or as gas taken from ONGC’s fields. The Supreme Court has sent the issue to mediation after earlier settlement talks failed, while retaining the option of a merits decision.

This brief was written by AI from the original reporting and checked by other models. Names, figures and quotes come from the source; read it for full context.

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