Detailed Coverage

ONGC Launches Deepwater Exploration Mission

ONGC has initiated its 'Samudra Manthan' deepwater exploration campaign, spudding its first exploratory well, MN-DW18-1-H-D, on 25 July 2026. The well is located 23 nautical miles from Konark in the Mahanadi Offshore Basin.

What just happened

The state-owned oil explorer ONGC has commenced drilling operations for its deepwater exploration well MN-DW18-1-H-D. This marks the beginning of the 'Samudra Manthan' initiative, aimed at unlocking significant hydrocarbon reserves.

Why this matters

This deepwater exploration effort is crucial for ONGC's strategy to boost domestic crude oil and natural gas production, thereby reducing India's reliance on imports. The Mahanadi Offshore Basin holds substantial potential, with national offshore basins estimated to contain 5,600 MMTOE.

The backstory

The current exploration strategy in the Mahanadi Offshore Basin is informed by recent successful discoveries in Utkal and Konark. ONGC also benefits from a government initiative to open nearly one million square kilometres of restricted offshore areas for development, expanding exploration opportunities.

What changes now

ONGC's operational focus shifts to high-stakes deepwater drilling. The company has also launched a 'DeepX' centre in Mumbai on 5 January 2026, to centralize geoscientific expertise and enhance data interpretation for exploration efficiency.

Risks to watch

Deepwater exploration is inherently complex and carries significant technical risks. This campaign is described as one of India's most challenging deepwater drilling operations, requiring advanced execution capabilities.

Peer comparison

ONGC, as India's largest crude oil and natural gas company, is at the forefront of such large-scale deepwater exploration efforts. Other domestic players are also exploring offshore blocks, but ONGC's scale and government backing position it uniquely for these ultra-deepwater ventures.

Context metrics (time-bound)

Exploratory well MN-DW18-1-H-D spudded on 25 July 2026. Deepwater Exploration Mission Centre 'DeepX' launched on 5 January 2026.

What to track next

Investors should closely monitor progress reports from this challenging drilling campaign and any further announcements regarding the opening of new offshore exploration blocks.