- **Chennai Petroleum Corporation (CPCL) is the refinery that quietly powers southern India’s cars, jets, and factories - and makes the fuel for the nation’s missiles and rockets. Born in 1965 as a joint venture between the Indian government, an American oil major, and Iran’s national oil company, it became a subsidiary of Indian Oil Corporation (IOCL) in 2001 and now operates as a subsidiary with deep technical muscle. The recurring approach is to take a single, highly complex industrial asset - the Manali Refinery - and wring more out of it every year than its nameplate capacity suggests, while using the cash flows and expertise from that engine to build the next one.** # Business segments A single integrated refining engine that produces everything from bulk transport fuels to niche rocket propellant, plus a new refinery under joint development and a re-entry into fuel retail - all anchored by the Manali complex. ## 1. Integrated refining: the hydrocarbon engine that does everything **One coastal refinery complex processes crude oil into fuels, lubricant base stocks, wax, and petrochemical feedstocks - and consistently runs above its rated capacity.** - **More complex than most** - the Manali Refinery has a Nelson Complexity Index of 10.03, making it the fifth most complex refinery in India and the second most complex in the IOCL group, which means it can process cheaper, heavier crudes and still produce high-value light products. - **Runs beyond its design limits** - with an installed capacity of 10.46 million metric tonnes per annum (MMTPA), the refinery processed 11.71 MMT in FY26, or 112% of capacity, and has exceeded its rated throughput for four to five consecutive years through operational improvements rather than major capital expenditure. - **A product slate that spans the ordinary and the extreme** - the refinery makes petrol, diesel, LPG, jet fuel, and bitumen, but also produces paraffin wax, pharma-grade hexane, and the only domestically manufactured JP-7 equivalent missile fuel for the DRDO, alongside rocket propellant fuel (ISROSENE) for ISRO. - **The mother industry for a petrochemical cluster** - by supplying propylene and other feedstocks directly to neighbouring downstream plants, the refinery has turned the Manali area into a hub for specialty petrochemical manufacturing, with CPCL at the centre of the value chain. ## 2. Cauvery Basin Refinery: the next-generation copy under construction **A 9 MMTPA grassroots refinery and petrochemical complex is being built at Nagapattinam through a joint venture, designed to replicate the Manali model on a coastal site with modern fuel specifications.** - **A joint venture with the parent** - CPCL holds a 25% stake in Cauvery Basin Refinery and Petrochemicals Limited (CBRPL), with IOCL holding the remaining 75%, and has committed equity investment of up to ₹2,570 crore. - **Built on the site of the old** - the new refinery replaces CPCL’s former Cauvery Basin Refinery, a small well-head plant that was decommissioned in 2019, and will produce BS-VI grade petrol and diesel plus polypropylene as a value-added product. - **Coastal logistics as the advantage** - the upcoming 9 MMTPA project site at Nagapattinam sits within 5 km of a port and 2 km of a national highway, enabling product evacuation by ship and cross-country pipeline to serve the product-deficit southern region. - **Project cost revised upward** - the total project cost stands at ₹33,023 crore as of March 2024, with about ₹4,000 crore of additional investment expected from other stakeholders on a build-own-operate basis. ## 3. Fuel retail: a re-entry into the forecourt **After a two-decade absence, CPCL has government approval to sell petrol and diesel directly through its own retail outlets, with the first stations expected during its Diamond Jubilee year.** - **Licences secured, rollout beginning** - the company has taken 300 licences for retail outlets and expects to commission many of them in FY27, with an initial capital expenditure of approximately ₹400 crore earmarked over two to three years. - **A return, not a debut** - CPCL exited fuel retail nearly twenty years ago, and the Ministry of Petroleum conveyed government approval to exercise retail marketing rights in May 2025, marking a strategic re-entry into direct consumer sales. # Group structure and partners **CPCL is a subsidiary of Indian Oil Corporation, which buys roughly 92% of its products and arranges its crude shipments - making the parent both its largest customer and its supply-chain backbone.** - **Majority owner and primary offtaker** - IOCL is the parent company and majority shareholder, procuring about 92% of CPCL’s output and marketing it through its national distribution network and pipelines, while also arranging all of CPCL’s crude-oil vessel requirements. - **A Central Public Sector Enterprise with Navratna status** - CPCL operates under the Ministry of Petroleum and Natural Gas and was granted Navratna status in June 2026, giving it greater operational and financial autonomy. - **Joint ventures beyond refining** - in addition to the CBRPL refinery project, CPCL holds stakes in Indian Additives Limited and in National Aromatics and Petrochemicals Corporation Limited, though the latter is in the process of being wound up. - **No subsidiaries, one principal banker** - the company has no subsidiary companies, and its principal banker is State Bank of India.