Another positive result from Oil India's third exploratory well. This is not a fluke any longer. It is the start of a serious reckoning with what is under one of Asia's most strategically located swaths of water.

The language energy state-run firms use when they strike oil and gas is almost quaint. Initial production testing has revealed natural gas and flaring was ongoing after the perforation. That's what was tucked away in a regulatory filing on Friday morning. The implications, however, on India's energy future and for the geopolitics of the Bay of Bengal go far beyond words.

On June 5, Oil India Limited announced a newfound natural gas discovery in its third exploratory well Vijayapuram-3, which was drilled at a water depth of 355 metres and until a maximum depth of 1,900 metres, about 15 kilometres off the east coast of the Andaman Islands, under the Offshore Andaman Block AN-OSHP-2018/1. This well encountered gas in the Eocene formation, which has been the source of commercially significant gas accumulations in Southeast Asia for decades.

The second gas strike in the block has been confirmed. Out of three exploratory wells drilled so far, two have now returned positive hydrocarbon indicators the first positive being Vijayapuram-2, confirmed in September 2025. A two out of three hit rate in a frontier basin is not just promising, it's a positive trend. It is a statistically stunning fact and it is starting to change the perception of geologists and energy strategists about this watersway.

What the numbers actually tell you?

The initial find in the Andaman last September was a pretty big splash. The well, which is about 17 kilometres off the east coast of the Andaman, was drilled to a target depth of 2,650 metres and gas samples from Vijayapuram-2 have confirmed the methane content of 87%. The 87% methane content is not only geologically intriguing but it also crosses the line into commercial viability, provided there is an adequate reservoir. Initial estimates at the time suggested that the resource potential could be as high as 307–370 Mt of oil equivalent, but experts have cautioned that the estimates have not been confirmed by appraisal drilling.

On the exchanges, the stock of Oil India surged over 3 percent when the Vijayapuram-2 discovery was first announced, trading at four times its average 30-day volume, reflecting the markets' thirst for domestic upstream news, given that nothing much had happened since August.

The third well announcement on Friday is a different message. It's not lab-tested with methane percentages yet, but it is, at least, pattern recognition. A basin in which gas is consistently indicated by wells in a geographic area is indicative of a working petroleum system (source rock that produced hydrocarbons, migration pathways that moved hydrocarbons, and trapping structures that trapped hydrocarbons). It's what exploration geologists hunt for all their lives.

A Country Can't Afford To Stop Looking

It's simple, yet brutal, in the background. India's domestic crude oil production has declined by 22.3% during the last decade, while LNG imports have increased by 67% and now constitute more than half of its gas availability, compared with 40.7% ten years ago. Natural gas reserves in India are also down by almost 25% from 1,427 BCM in 2014 to over 1,073 BCM in 2019.

These aren't just numbers. India became the fourth largest LNG importer in the world in 2024, when it touched a record 36 billion cubic metres of LNG imports. The IEA expects that figure to almost double to 64 bcm by 2030. Meanwhile, some 60 per cent of the LNG India uses to produce urea comes from Qatar, and 30 of the 32 urea plants uses natural gas as their feedstock, which becomes starkly apparent each time there is trouble in the Middle East or LNG cargoes get rerouted.

The impact of the March 2026 disruption via the Strait of Hormuz was an eye-opener in terms of how vulnerable this structure is. The government had applied the Natural Gas Control Order under the Essential Commodities Act and introduced the following rationalisation scheme, under which fertiliser plants got 70 per cent of their previous supplies, refineries were cut by nearly 35 per cent and domestic PNG and CNG users were safeguarded at 100 per cent. That's a war-time approach to gas management in an economy that seeks to become the world's third largest.

The home-grown options have not caught up. A total of 31 gas-fired power plants, with a capacity of 8GW, failed to produce any power in FY2025. The utilisation rate of six out of the seven LNG import terminals in India was below 50 per cent. From November 2024 to March 2025, gas fired power plants operated at less than 10% capacity. This is a question of structural mismatch not a question of supply and demand in general, but rather one of prices, infrastructure and the amount of willingness of industrial consumers to make the leap to gas. Over time, those domestic discoveries, which decrease dependence on imports, could turn the economics of that equation upside down.

You can't make up the Regional Geology!

It is a hypothesis the Indian petroleum ministry and exploration community have long believed, despite some doubt, that the Andaman basin is a part of a large hydrocarbon belt that stretches from Myanmar in the north to Indonesia in the south. Union Minister for state for Petroleum Hardeep Singh Puri was the first to frame the first discovery in Vijayapuram in these terms, stating that it was in line with the geological profile of discoveries found from Myanmar to Indonesia, and declared the Andaman Sea as an "ocean of energy opportunities.

That's a precedent. Myanmar's offshore blocks, which are around 200 kilometres off the Andaman Islands, produce approximately 1.5 tcf per year and Indonesia's Masela field has 7.5 tcf. The entire area has approximately 20% of the global gas undiscovered resources. This proven belt extends to the Indian subcontinent even at shallow water depths and places India on the same geological table as some of the most productive gas regions of the earth.

The discoveries in the Andaman and in the Konark and Utkal fields in the Mahanadi Basin off India's east coast announced by ONGC last year in parallel indicate a more general maturing of India's offshore exploration endeavors, which is a result of the policy success and a collaborative execution between the ministry of petroleum and natural gas, the Directorate General of Hydrocarbons, and the national oil companies.

The opening of almost 1 million square kilometers of erstwhile ‘No-Go' offshore areas in 2022 was a milestone and has led to a major momentum in offshore activity, especially in the deep-water and frontier offshore regions like Andaman-Nicobar offshore basin.

The Realism Gap

This must not be interpreted as triumphalism and lack of critical scrutiny. The industry has an established history of frontier basins that have had excitement, only to not deliver at appraisal. As noted by commercial analysts, what has been confirmed to date is the presence of hydrocarbons it is not certain that the basin will produce commercial volumes of natural gas, even if it does, the time from the discovery to the first gas would be 10 years.

The extent to which the basin can contribute to India's domestic gas supply will depend on a number of key factors, including the size of the reserves, the rate of development, costs, environmental management and the alignment of the discoveries with India's long-term energy transition plans. The Andaman area is located next to critical marine habitats and protected islands the environmental and regulatory aspects of any future commercial operation will be costly and time-consuming.

But there is a more fundamental question of structure that any honest evaluation must face. Much more drilling data is needed for commercial drilling in deeper Indian waters and the prospects so far are mostly biogenic gas (gas formed by microbial decomposition, not by the thermogenic process from deeply buried organic matter). Industry watchers have said that, to determine if the basin contains large thermogenic accumulations, explorers will have to move further out into the deeper basin. The shallow shelf results are good, but not the equivalent of finding a giant.

What If This Happens?

If appraisal work proves there is a commercially viable accumulation which will take years to prove then the strategic implications go far beyond India's energy balance sheet. The Andaman Islands are located on one of the world's busiest shipping lanes. New Delhi has long been worried about Chinese presence in Myanmar's Kyaukphyu deep-sea port and its influence in Indian Ocean littoral countries. Any gas field that is developed domestically in the Andaman Sea will not only bring down India's import dependence but will also establish its physical and commercial footprint in the waters where India has been asserting strategic superiority under the Act East Policy framework.

The financial facet is also of great importance. Proven a successful commercial venture would further strengthen India's partnership with the world's deepwater exploration giants and the significant discovery has already garnered interest from BP India, Shell and ExxonMobil, among others, as partners in India's offshore ambitions. The nation's biggest ever auction (round X) was India's OALP, which opened up 25 blocks, 19 of them offshore and 12 ultra-deepwater, covering an area of around 192,000 square kilometres at the beginning of 2025. The Andaman results provide that bidding round with a lot of credibility.

Two Wells Down, the Hard Work Starts Now!

This is the honest presentation of what's going on right now: Oil India has accomplished something really hard. It has now invaded an offshore basin it had never explored, and has since drilled three wells of which two have yielded gas. It's a heavy-duty geologic statement, not a press release. The immediate next steps, isotope studies to understand the genesis of the gas, appraisal wells to map the extent of the reservoir, seismic campaigns to better understand the structural trapping will determine whether this becomes a national energy asset or a geologically interesting footnote.

There is no denying that India is structurally, increasingly and costlier dependent on energy imports. Last year the country was spending huge amounts on LNG imports while the country's reserves were declining. The significance of each barrel equivalent is all the more important, not only for the financial considerations, but for the message they send as to whether the nation can bridge the gap between its aspirations and its below-ground reality.

The sea off the Andaman coast is screaming loud. But whether India has the bandwidth to listen, the regulatory patience, and the commercial architecture, is now a question.