India’s state-backed energy producers are pushing for more exploration for the first time in decades. Today, we explain more.

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India’s Huge Oil Exploration Gamble

India’s state-backed energy producers are pushing for more exploration for the first time in decades. A current issue facing them is that crude imports now make up 88 percent of national demand (up from 87 percent last year), a huge crutch that has to be constantly monitored and has been especially politically sensitive as the U.S. aggressively pushes for India to end its dependence on Russian crude. The strategy combines incremental expansion in proven offshore zones with a far riskier geological bet in ultra-deep waters.

At the center of the story is the Krishna–Godavari Basin on India’s eastern coast. Production from the KG-D6 block, operated by Reliance Industries in partnership with BP, delivers about 28 million standard cubic meters of gas per day and accounts for nearly a third of India’s domestic output. Sustained uptime close to 100 percent over more than a decade has made the basin a rare example of operational reliability in India’s upstream sector. For policymakers, this serves as proof that deepwater investment can translate into meaningful domestic supply. This is now encouraging further capital deployment even as extraction costs rise and geological complexity increases.

Yet the KG Basin alone cannot materially shift India’s structural dependence on imports. That reality explains the industry’s pivot toward frontier exploration, particularly in the Andaman Basin, where drilling targets lie beneath as much as 20,000 meters of water and rock. Optimists draw comparisons with Indonesia’s Sumatran petroleum systems, which have produced tens of billions of barrels of oil equivalent over several decades. But unlike Sumatra, the Andaman region still lacks confirmed commercial reserves, making current spending effectively a high-stakes geological wager rather than a development program.

State producers ONGC and Oil India have already committed substantial capital to this effort, including a multi-basin stratigraphic drilling campaign and rapidly rising annual expenditure. Both companies, working with BP, announced a $385 million (₹35.1 billion) stratigraphic drilling campaign across the Andaman, Mahanadi, Saurashtra, and Bengal basins. Oil India also announced a partnership with TotalEnergies to drill at various depths ranging from 6,500 to 20,000 feet.

Technology partnerships with international majors and service providers signal recognition that ultra-deepwater success depends as much on engineering capability as on geology. Even so, early indicators remain mixed; isolated gas shows and weather-related production disruptions highlight both promise and fragility. At the same time, ONGC has spent $6.8 billion (₹620 billion) in capex in FY25 compared to just $4.2 billion (₹374.9 billion) in FY24. Oil India has committed $2 billion (₹181.7 billion) in FY25 with $439.5 million (₹40 billion) just for data acquisition. 

That being said, persistent import dependence exposes India to volatile crude prices, currency pressure, and geopolitical supply risks. Large domestic discoveries could reshape trade balances, strengthen energy security, and support industrial growth. Failure, however, would lock the country into continued external vulnerability while leaving state producers burdened with heavy capital outlays and uncertain returns. Whether this ultra-deepwater gamble delivers a breakthrough or becomes an expensive lesson in exploration risk will help define the trajectory of India’s energy security for decades to come.

See you tomorrow.

Written by Yash Tibrewal. Edited by Shreyas Sinha.

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Disclaimer: This is not financial advice or recommendation for any investment. The Content is for informational purposes only, you should not construe any such information or other material as legal, tax, investment, financial, or other advice.