| Exploration and Production (Onshore & Offshore) | Oil and gas exploration, drilling, production, and enhanced recovery technologies. | Strong domestic acreage, technological edge, government support, and global partnerships for overseas assets. | B2B - domestic refineries, petrochemical companies, and overseas buyers via ONGC Videsh. | Deepwater offshore fields with higher production efficiency and reserve quality. | 95627 | 7 | Sale of crude oil and natural gas; production share from domestic fields and JV assets. | Market linked pricing, government regulated contracts, volume and quality based pricing. | Exploration success, technological advances in deepwater drilling, and increased domestic demand. | Mumbai High, KG Basin, Assam Asset |
| Refining and Marketing | Refining crude oil into petroleum products and marketing via retail outlets and pipelines. | Extensive distribution network, strong brand presence, refining integration with upstream supply. | B2C and B2B - fuel consumers, industries, transport sectors nationwide. | Retail fuel sales and petrochemical feedstock supply segments. | 576326 | 41 | Petroleum product sales, retail fuel outlets, LPG and aviation fuel marketing. | Direct sales, regulated pricing, competitive retail pricing strategies. | Increasing fuel demand, retail network expansion, refinery capacity enhancements. | HPCL, MRPL |
| Petrochemicals | Production of petrochemical intermediates from refinery outputs for industrial use. | Feedstock linkage from parent company, strategic location at Dahej SEZ. | B2B - chemical manufacturers, plastics industries, and export markets. | Specialty petrochemicals with higher value addition. | 14808 | 1 | Sales of petrochemical products to industrial customers and downstream users. | Contract and spot sales dependent on global petrochemical prices. | Increased feedstock availability and rising demand for chemicals. | ONGC Petro additions Limited (OPaL) |
| Overseas Exploration and Production (ONGC Videsh) | International oil and gas exploration, production from equity and JV interests abroad. | Global footprint, diversified asset base, strategic government backing and partnerships. | Global energy markets, national oil companies, and trading companies. | Mature producing fields with enhanced recovery and low lifting costs. | 12995 | 1 | Sale of produced oil and gas under long-term contracts and spot sales. | Market price linked, PSC contracts with host governments. | Production ramp-up in overseas assets, strategic acquisitions, and new exploration wins. | Azeri-Chirag-Gunashli (ACG), Rovuma Area 1, South Sudan fields |
