Spudding of first appraisal well, MN-DWN18-1-HD, begins in Mahanadi offshore - 25th July 2026 - Ministry of Petroleum and Natural Gas - Gazette Notification PDF
Read or download the official PDF of this gazette notification issued by the Ministry of Petroleum and Natural Gas on 25th July 2026. Classified under Press Release.
Executive Summary
On July 25, 2026, the Union Minister for Petroleum and Natural Gas inaugurated the drilling of the MN-DWN18-1-HD appraisal well in the Mahanadi Offshore Basin. This project is the first of four planned deepwater wells designed to evaluate prospective offshore basins and enhance India’s energy security. The initiative aligns with a broader strategy to reduce import dependence through systematic policy reforms, scientific exploration, and the deployment of advanced drilling technologies.
Key Points / Main Content
Drilling Operations and Objectives
Commencement of the first appraisal well (MN-DWN18-1-HD) in the Mahanadi Offshore Basin.
This is the first of four planned deepwater wells intended to systematically evaluate India's most prospective offshore basins.
The program utilizes world-class deepwater drilling technology to unlock hydrocarbon resources and boost domestic production.
Policy and Regulatory Framework
Implementation of the Hydrocarbon Exploration and Licensing Policy (HELP) and the Open Acreage Licensing Programme (OALP).
Transition to a transparent Revenue Sharing framework and the removal of restrictions on 99% of former offshore "No-Go" areas.
Nearly 81% of India’s active exploration acreage has been awarded post-2014 due to these reforms.
Scientific Exploration and Data Management
Sustained investment in geoscientific data through Mission Anveshan and the National Seismic Programme.
Utilization of the National Data Repository and the Hydrocarbon Resource Assessment Study to create a comprehensive geoscientific database.
Focus on the Extended Continental Shelf Survey to unlock frontier basins.
Sector Progress and Performance
Under OALP, 172 exploration blocks covering 3.8 lakh square kilometers have been awarded.
Committed investments in the sector have exceeded USD 4.3 billion.
In FY 2025-26, approximately 674 wells were drilled, leading to five new discoveries and the monetization of seven others.
Strategic National Goals
Two-fold strategy focusing on discovering new hydrocarbon resources and maximizing recovery from existing national assets.
Efforts to revitalize mature producing fields using global best practices and advanced technology.
Aiming for long-term energy self-reliance and the vision of "Viksit Bharat."
Impact Analysis
Government of India (Ministry of Petroleum & Natural Gas)Impact: Moves the nation closer to reducing energy import dependence and achieving the "Viksit Bharat" vision for energy security.
Action Required: Continue monitoring the progress of the four-well drilling program and oversee the revitalization of mature producing fields.
Exploration Entities (ONGC, Oil India Limited)Impact: Tasked with executing high-tech deepwater drilling and contributing to the country's long-term energy self-reliance.
Action Required: Successfully execute the drilling of the MN-DWN18-1-HD well and utilize world-class technology for subsequent deepwater explorations.
Directorate General of Hydrocarbons (DGH) and Technical PartnersImpact: Responsible for the technical oversight and the application of scientific data to unlock new hydrocarbon resources.
Action Required: Provide the necessary technical support and manage geoscientific data to facilitate efficient exploration in the awarded OALP blocks.
Geologists, Engineers, and Offshore ProfessionalsImpact: Increased professional opportunities and demand for specialized skills in deepwater drilling and scientific exploration.
Action Required: Apply global best practices and cutting-edge technology to ensure the success of current and future drilling operations.
Key Entities Referenced
Hydrocarbon Exploration and Licensing Policy (HELP): The landmark policy framework for exploration and production of oil and gas in India, introducing a revenue-sharing model.
Open Acreage Licensing Programme (OALP): A mechanism under HELP that allows companies to select and bid for exploration blocks year-round, replacing the previous nomination-based approach.
Mahanadi Offshore Basin: The primary location for the current drilling of the MN-DWN18-1-HD appraisal well, central to India's deepwater exploration efforts.
Directorate General of Hydrocarbons (DGH): The technical regulator under the Ministry of Petroleum and Natural Gas that oversees offshore exploration activities.
Mission Anveshan: A government initiative focused on geoscientific data generation to assist in unlocking hydrocarbon resources in India's frontier basins.
Ministry of Petroleum & Natural Gas
Spudding of first appraisal well, MN-DWN18-1-
HD, begins in Mahanadi offshore basin
Every metre drilled brings us closer to reducing import
dependence, strengthening self-reliance and realising the
vision of Viksit Bharat: Sh. Hardeep Singh Puri
प्रव तथ: 25 JUL 2026 1:26PM by PIB Delhi
Union Minister for Petroleum and Natural Gas, Shri Hardeep Singh Puri, today marked the
commencement of drilling of the first appraisal well, MN-DWN18-1-HD, in the Mahanadi Offshore
Basin. Describing the occasion as "the beginning of a new chapter in India's journey towards energy
security", the Minister said the commencement of drilling reflects the outcome of a decade of visionary
reforms that have transformed India's exploration and production landscape.
The MN-DWN18-1-HD appraisal well being spudded today in the Mahanadi Offshore Basin is the first of
four planned deepwater wells that will systematically evaluate one of India's most prospective offshore
basins. The drilling programme will employ world-class deepwater drilling technology to unlock new
hydrocarbon resources and strengthen India's domestic production capability.
The Minister said that over the past decade, the Government has fundamentally transformed the
exploration and production ecosystem through landmark policy and regulatory reforms.
He highlighted the introduction of the Hydrocarbon Exploration and Licensing Policy (HELP),
replacement of the nomination-based approach with the Open Acreage Licensing Programme (OALP),
adoption of a transparent Revenue Sharing framework and the opening of nearly 99% of the erstwhile
offshore "No-Go" areas for exploration. He noted that nearly 81% of India's active exploration acreage has
been awarded after 2014, reflecting the confidence these reforms have inspired among investors and
explorers alike.
Emphasising the importance of scientific exploration, the Minister said the Government has made
sustained investments in geoscientific data generation through initiatives such as Mission Anveshan, the
National Seismic Programme, the Extended Continental Shelf Survey, the National Data Repository and
the Hydrocarbon Resource Assessment Study, creating one of the world's most comprehensive
geoscientific databases to unlock India's frontier basins.
Highlighting the progress achieved under the Government's exploration reforms, Shri Puri said that
under OALP, 172 exploration blocks covering nearly 3.8 lakh square kilometres have been awarded
with committed investments exceeding USD 4.3 billion. During FY 2025-26 alone, around 674 wells
were drilled, five new discoveries were made and seven discoveries were monetised.
The Minister said the Government's strategy is two-fold—discovering new hydrocarbon resources while
maximising recovery from existing national assets. He added that efforts are also underway to revitalise
mature producing fields through the deployment of advanced technologies and global best practices.The Minister emphasised that India's energy future will not be secured by a single discovery but through
sustained reforms, cutting-edge technology, scientific exploration and the dedication of thousands of
geologists, engineers, scientists and offshore professionals.
"As we commence this first well today, we are not merely drilling into the seabed—we are drilling into
India's future energy security. Every metre drilled brings us closer to reducing import dependence,
strengthening self-reliance and realising the vision of Viksit Bharat," the Minister said.
Congratulating ONGC, Oil India Limited, the Directorate General of Hydrocarbons, technical partners and
the entire exploration fraternity, Shri Puri expressed confidence that today's commencement of drilling
would further strengthen India's offshore exploration efforts and contribute to the country's long-term
energy security and goal of energy self-reliance.
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