There isn’t a fixed quantity of oil inside a CRZ. CRZ refers to the Coastal Regulation Zone in India—a regulatory framework that governs development along the coastline—not a mineral reserve. Oil resources are located in offshore basins and are licensed through separate energy-sector processes; data on reserves are reported by national agencies and industry bodies, not by CRZ area.
CRZ in brief: what it covers and why it matters for oil projects
The Coastal Regulation Zone is defined by the 2019 CRZ Notification, which classifies coastal areas into zones and sets restrictions on construction, dredging, mining and other activities near the shore. Oil and gas exploration can be permitted only after specific permissions and environmental clearances, and subject to compliance with coastal ecosystem protections. There is no single figure for “oil in CRZ” because oil occurs in defined offshore blocks and is tracked through sectoral licensing, not by CRZ zone.
Key notes on regulatory scope
Oil exploration around the Indian coast sits at the intersection of environmental, maritime, and energy regulations. CRZ clearance is one piece of the puzzle, and it does not replace the need for approvals from the Directorate General of Hydrocarbons (DGH), the Ministry of Petroleum and Natural Gas (MoP&NG), or the relevant state authorities.
Regulatory pathway for oil and gas within CRZ areas
To determine if a specific oil exploration project in or near a CRZ boundary can proceed, practitioners typically follow these steps:
- Identify the exact CRZ category and boundary for the location from official CRZ maps and notifications.
- Assess whether the proposed activity falls within permitted activities for that CRZ category and obtain CRZ clearance from the MoEFCC and the coastal zone management authority.
- Secure environmental clearance and, where applicable, forest clearance, along with consents from maritime and port authorities for nearshore operations.
- Coordinate with the Directorate General of Hydrocarbons (DGH) and the Petroleum and Natural Gas Regulatory Board (PNGRB) for exploration/licensing approvals and project compliance.
- Undertake baseline environmental and social impact studies, public consultation, and implement mitigation measures aligned with national regulations.
These steps illustrate the multi-agency process that governs whether an oil project can advance in or near CRZ zones. The exact requirements depend on the project location, scope, and environmental considerations.
Where official oil-reserve data come from
Numbers about oil reserves and resources are published by sector-specific government bodies and major industry statistics. They are not broken down by CRZ areas. For readers seeking authoritative figures, consider these sources:
- Directorate General of Hydrocarbons (DGH) — primary government agency publishing Indian oil and gas reserves, resources, and production data.
- Ministry of Petroleum and Natural Gas (MoP&NG) — sector reports, policy updates, and annual performance data.
- Oil and Natural Gas Corporation (ONGC) and other private/PSU explorers — annual reports detailing reserves in their operating blocks.
- Central and state authorities responsible for coastal management and environmental clearances for context on CRZ permissions.
- Global context: EIA, BP Statistical Review and other industry benchmarks for comparative perspective.
In practice, reserve figures are reported for basins, blocks and national totals, not by CRZ boundary alone, so there is no fixed “oil inside CRZ.”
Summary
The short answer: CRZ itself is not a source of oil. It is a regulatory framework governing coastal development, including energy projects, rather than a store of oil. Oil reserves are identified and licensed through dedicated petroleum sector authorities and are not quantified by CRZ area. Any exploration within CRZ requires a multi‑agency clearance process and must comply with environmental, maritime, and energy regulations.


