ONGC Drills First Deepwater Well in Mahanadi Basin

Minister of Petroleum and Natural Gas Hardeep Singh Puri virtually spudded ONGC's exploratory well, MN-DW18-1-H-D, in the Mahanadi Offshore Basin on 25 July 2026. This marks a significant milestone under the Government of India's Samudra Manthan Campaign.

The spudding of the well is a major step towards unlocking India's deepwater hydrocarbon potential. Prime Minister Narendra Modi had called for harnessing India's untapped offshore oil and gas potential in his Independence Day address on 15 August 2025.

The Government has opened nearly one million square kilometres of previously restricted offshore areas, creating new exploration opportunities. India's eastern and western offshore basins are estimated to hold over 5,600 MMTOE of hydrocarbon potential.

ONGC launched its flagship Deepwater Exploration Mission Centre, DeepX, in Mumbai on 5 January 2026. DeepX integrates ONGC's geoscientific expertise, advanced interpretation capabilities, and strategic global collaborations.

The MN-DW18-1-H-D well is being drilled approximately 23 nautical miles from Konark, off the Odisha coast. The commencement of drilling marks the beginning of one of India's most challenging deepwater exploration campaigns.

Every prospect evaluated, well drilled, and discovery made will contribute towards enhancing domestic production, reducing import dependence, and strengthening India's energy security and self-reliance.

The Mahanadi Offshore Basin has shown promise with recent exploration successes, including ONGC's Utkal and Konark discoveries. The basin is expected to play a significant role in India's efforts to unlock its deepwater hydrocarbon potential.

The drilling of the MN-DW18-1-H-D well is a crucial step towards achieving this goal. The well is expected to provide valuable insights into the hydrocarbon potential of the Mahanadi Offshore Basin.

In the coming years, India is expected to see significant investment in deepwater exploration. The Government's efforts to open up new areas for exploration and the launch of initiatives like DeepX are expected to drive growth in the sector.

As India looks to reduce its dependence on imported oil and gas, the development of its deepwater hydrocarbon resources is expected to play a critical role. The drilling of the MN-DW18-1-H-D well marks an important milestone in this journey.

The success of the Samudra Manthan Campaign will depend on the ability of companies like ONGC to explore and develop India's deepwater hydrocarbon resources. With the drilling of the MN-DW18-1-H-D well, India has taken a significant step towards achieving this goal.

In conclusion, the drilling of the MN-DW18-1-H-D well in the Mahanadi Offshore Basin is a major milestone in India's efforts to unlock its deepwater hydrocarbon potential. The success of this campaign will have significant implications for India's energy security and self-reliance.