The Chief Minister's Office of Assam announced on Friday, June 12, 2026, that the Centre, Assam, and Nagaland have signed a landmark tripartite agreement to unlock hydrocarbon resources along the inter-state boundary, marking a significant step toward energy security and regional economic growth.

Context

The agreement addresses a long-standing impasse over oil and gas exploration in zones straddling the Assam-Nagaland border — a boundary that has remained disputed since Nagaland's creation as a state in 1963. Decades of jurisdictional uncertainty had kept potentially rich hydrocarbon blocks idle, even as Assam hosts India's oldest commercial oilfield at Digboi, producing crude since the late nineteenth century.

Union Home Minister Amit Shah mediated the tripartite talks between the central government and the two state governments, lending political weight to a resolution that had eluded successive administrations. The pact now clears a formal pathway for exploration companies to operate in areas previously off-limits due to competing state claims.

Policy Backdrop

The agreement sits within the framework of the Hydrocarbon Exploration and Licensing Policy (HELP), introduced in 2016, which replaced the earlier New Exploration Licensing Policy to offer uniform licensing terms and revenue-sharing arrangements designed to attract both domestic and international operators.

The Supreme Court had, over the years, directed status-quo maintenance in oil-bearing border areas pending resolution of the boundary dispute, effectively freezing exploration activity. This tripartite pact represents a negotiated workaround — or a definitive settlement of terms — that could allow those blocks to enter the next round of the Open Acreage Licensing Policy (OALP) bidding cycle.

The move also aligns with the national priority of raising domestic crude output and reducing India's heavy dependence on imported oil, a goal that has gained urgency amid global energy price volatility.

Stakeholders and Impact

Border communities in both Assam and Nagaland stand to benefit from royalty revenues, employment, and infrastructure investment that typically accompany active oilfield development. Oil exploration and production companies — both public-sector undertakings and private operators — gain access to blocks that were commercially attractive but legally inaccessible.

The agreement is also significant for Nagaland, which has had limited hydrocarbon revenue compared to its neighbour. A defined revenue-sharing formula between the two states — the specifics of which are yet to be publicly detailed — will be critical to sustaining inter-state cooperation over the long term.

Environmentalists and local advocacy groups in the region are expected to scrutinise the pace and terms of environmental clearances, given the ecologically sensitive character of the Northeast India landscape.

What's Next

Immediate next steps include the rollout of joint seismic surveys to map subsurface reserves, followed by applications for environmental clearances from the Ministry of Environment, Forest and Climate Change. The blocks could subsequently be included in an upcoming OALP bidding round, inviting competitive bids from exploration firms.

The broader implication is that this model of central mediation to unlock inter-state resource disputes may be replicated across other contested boundary zones in the Northeast, potentially opening additional hydrocarbon and mineral blocks that have sat dormant for decades.