Published: July 31, 2025

India stands on the brink of a historic energy breakthrough that could reshape its economic and energy landscape. Union Minister for Petroleum and Natural Gas, Hardeep Singh Puri, has announced that India is close to discovering a massive oil reserve in the Andaman Sea, potentially holding up to 2 lakh crore litres (approximately 11.6 billion barrels) of crude oil. This discovery, likened to Guyana’s transformative oil find, could propel India’s economy from its current $3.7 trillion to an ambitious $20 trillion, marking a significant step toward energy independence and global economic prominence.

A Guyana-Scale Discovery

The optimism surrounding this potential discovery stems from comparisons to Guyana’s offshore oil find by ExxonMobil, Hess Corporation, and CNOOC, which uncovered over 11.6 billion barrels of oil and gas, vaulting Guyana into the top 20 global oil reserve holders. Union Minister Puri, in an exclusive interview with The New Indian, expressed confidence in India’s prospects, stating, “When we find our own Guyana, India could leap from a $3.7 trillion economy to $20 trillion.” He highlighted that geological surveys indicate the presence of multibillion-barrel hydrocarbon reserves in the Andaman Sea, trapped in complex deepwater structures.

The Andaman and Nicobar Islands, located in the southeastern part of the Bay of Bengal, have emerged as a key focus for oil exploration. The region’s sedimentary basin, spanning 2.25 lakh square kilometers, is considered one of the last undrilled frontiers globally, with “excellent potential for large hydrocarbon accumulations,” according to the Ministry of Petroleum and Natural Gas. Early signs, including mud volcanoes in the Baratang formations, suggest significant oil and gas deposits.

ONGC and Oil India Lead the Charge

State-run Oil and Natural Gas Corporation (ONGC) and Oil India Limited (OIL) are spearheading exploration efforts in the Andaman Sea. In FY24, ONGC drilled a record 541 wells—103 exploratory and 438 development wells—marking the highest drilling activity in 37 years. The company invested ₹37,000 crore in capital expenditure, reflecting a strong commitment to domestic oil production. Meanwhile, Oil India has completed drilling its first well, Vijaya Puram 1, in the Andaman Sea and plans to drill three more wells in shallow-water blocks with a ₹2,500 crore investment for Phase 1.

ONGC’s efforts include ultra-deepwater drilling, with one well already drilled to 3,800 meters and three more planned at depths up to 4,000 meters. These operations are technically challenging due to the intricate deepwater structures, with each well potentially costing $100 million, as seen in Guyana’s experience. To overcome these challenges, ONGC has partnered with global energy firms like TotalEnergies to leverage expertise in deepwater exploration.

Policy Reforms Fuel Exploration

The Indian government’s policy reforms have been instrumental in accelerating exploration. Since 2016, the Hydrocarbon Exploration and Licensing Policy (HELP) and the Open Acreage Licensing Policy (OALP) have opened up over 1 million square kilometers of sedimentary basins for bidding, including previously inaccessible offshore regions like the Andaman Sea. The OALP’s ninth round saw 38% of bids targeting these new areas, with expectations of 80% in the upcoming tenth round. The Oil Fields Regulation and Development Amendment Bill, introduced in 2025, replaces outdated 1948 legislation, providing regulatory clarity and encouraging private sector participation through a revenue-sharing model.

These reforms have attracted both domestic and international players, including Indian Oil Corporation Ltd. (IOC), Bharat Petroleum Corporation Ltd. (BPCL), and Hindustan Petroleum Corporation Ltd. (HPCL), alongside ONGC and Oil India. The government’s focus on streamlining exploration and reducing bureaucratic hurdles has created a conducive environment for uncovering India’s untapped energy potential.

Economic and Strategic Implications

India currently imports over 85% of its crude oil, making it the world’s third-largest oil importer after the United States and China. A Guyana-scale discovery in the Andaman Sea could drastically reduce this dependency, potentially making India a net oil exporter. Union Minister Puri emphasized that a confirmed reserve of 11.6 billion barrels could meet India’s domestic energy needs and enable fuel exports, strengthening its position in the Asia-Pacific region.

Economically, the discovery could be a game-changer. By reducing reliance on volatile global oil markets, India could stabilize transportation costs, curb inflation, and lower the prices of goods and commodities. The influx of revenue from oil exports could bolster India’s GDP, with projections suggesting a fivefold increase to $20 trillion. This economic boost would enhance India’s global standing, particularly amidst geopolitical tensions, such as those in the Strait of Hormuz, which affect oil supply lines from the Gulf.

Strategically, the Andaman Sea’s proximity to key shipping lanes in Southeast Asia and the Bay of Bengal adds logistical and financial significance. Unlike unstable supply lines in West Asia, the Andaman region offers a stable offshore location for India to achieve energy self-sufficiency.

Environmental Concerns

While the economic prospects are promising, the environmental impact of drilling in the Andaman and Nicobar Islands raises concerns. The region’s pristine ecosystems, known for their biodiversity and eco-tourism, could face risks similar to those observed in Guyana, where oil exploration diminished the country’s green canopy. Environmentalists warn that deepwater drilling could disrupt marine ecosystems and contribute to carbon emissions, posing challenges to India’s climate goals. The government will need to balance economic gains with sustainable practices to mitigate these risks.

A Transformative Opportunity

India’s potential oil discovery in the Andaman Sea represents a pivotal moment in its journey toward energy independence and economic growth. With ONGC and Oil India intensifying drilling efforts, backed by robust policy reforms and global partnerships, the nation is poised to unlock a resource that could redefine its energy future. As Union Minister Puri stated, “It’s only a matter of time before we find a big Guyana in the Andaman Sea.” If successful, this discovery could not only fuel India’s energy needs but also propel it toward becoming a $20 trillion economic powerhouse.

For the latest updates on this developing story, stay tuned to BharatTone.