India’s Hydrocarbon Outlook 2024 61 A Report on Exploration & Production Activities Out of 26 sedimentary basins, there are 16 basins located entirely in onland, while 7 offshore basins partially overlap onland areas. The onland basin area constitute 1.63 million sq km, which is 49% of India’s total sedimentary cover. There are 4 producing basins [Rajasthan, Cambay, Assam Shelf and Assam-Arakan] located onland, while 2 offshore producing basins [KG and Cauvery] have its 14-15% area spread into onland. Geologically, onland basins have oldest stratigraphic sequences, often associated with structural complexity. Hydrocarbons are proven INDIA’S ONLAND BASINS and commercial in rift basins (RajasthanBarmer subbasin and Cambay basin), foreland basin (Assam Shelf) and fold-belt basin (AssamArakan). There are intra-cratonic sag basins like Vindhyan, which had recently established significant gas deposits in tight plays of Proterozoic. There are basins like Deccan Syneclise where intertrappean sediments are located within multiple flows of basalts, which are worth exploration with improvised seismic imaging. E C D B A I H G F RAJASTHAN LADAKH GUJARAT ODISHA MAHARASHTRA MADHYA PRADESH BIHAR KARNATAKA UTTAR PRADESH ASSAM TAMIL NADU TELANGANA CHHATTISGARH ANDHRA PRADESH PUNJAB JHARKHAND WEST BENGAL HARYANA UTTARAKHAND MEGHALAYA KERALA ARUNACHAL PRADESH HIMACHAL PRADESH JAMMU AND KASHMIR MANIPUR MIZORAM NAGALAND TRIPURA SIKKIM GOA DELHI ANDAMAN & NICOBAR DADAR & NAGAR HAVELI PUDUCHERRY CHANDIGARH DAMAN & DIU LAKSHADWEEP Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community 0 250 500 750 1,000 125 Km INDIAN SEDIMENTARY BASINS:ONLAND Legend STATE_BOUNDARY EEZ BOUNDARY RAJASTHAN BASIN GANGA-PUNJAB SPITI ZANSKAR KAREWA HIMALAYAN FORELAND VINDHYAN KUTCH ONLAND SAURASHTRA ONLAND NARMADA DECCAN SYNECLISE BHIMA KALADGI BASTAR CHHATTISGARH SATPURA SOUTH REWA DAMODAR BEGNAL PURNEA ASSAM SHELF A-A FOLD BELT MAHANADI ONLAND KG ONLAND CAUVERY ONLAND CUDDAPAH PRANHITA GODAVARI CATEGORY-I (Basins with 'Reserves' being produced and exploited) CATEGORY-II (Basins with 'Contingent Resources' to be developed and monetized) CATEGORY-III (Basins with only 'Prospective Resources' to be explored and discovered) SEDIMENTARY BASIN Source: DGH Internal
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