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((Short description|Subsidiary of Indian Oil Corporation))
((More citations needed|date=October 2021))
((Use dmy dates|date=July 2022))
((Use Indian English|date=August 2021))
((Infobox company
| name = Chennai Petroleum Corporation Limited
| native_name = CPCL
| native_name_lang = hi
| former_name = Madras Refineries Limited
| logo = Chennai Petroleum Corporation logo.svg
| logo_size = 200px
| type = [[Subsidiary]]
| traded_as = ((BSE|500110)) <br> ((NSE|CHENNPETRO))
| founded = ((Start date|df=yes|1965|11|18))<ref name="hist">((cite news|title=Company History – Chennai Petroleum Corporation Ltd.|url=http://economictimes.indiatimes.com/chennai-petroleum-corporation-ltd/infocompanyhistory/companyid-11661.cms|accessdate=1 June 2016|work=[[The Economic Times]]))</ref>
| hq_location_city = [[Chennai]]
| hq_location_country = [[India]]
| key_people = ((ublist|Shrikant Madhav Vaidya ([[Chairman]])|Arvind Kumar ([[Chief executive officer|Managing Director]])))<ref>((cite news|title=Gautam Roy appointed as CPCL MD|url=http://www.business-standard.com/article/companies/gautam-roy-appointed-as-cpcl-md-114101400732_1.html|work=[[Business Standard]]|date=14 October 2014))</ref><ref>((cite web|title=Directors – CPCL|url=https://www.cpcl.co.in/corporate_information-directors.htm|website=cpcl.co.in|accessdate=1 June 2016|archive-url=https://web.archive.org/web/20160812025214/https://www.cpcl.co.in/corporate_information-directors.htm|archive-date=12 August 2016|url-status=dead))</ref>
| industry = [[Oil and gas industry|Oil and gas]]
| products = ((ublist|[[Diesel fuel|Diesel]]|[[Kerosene]]|[[Liquified petroleum gas|LPG]]|[[Petrochemicals]]|[[Petrol]]))
| parent = [[Indian Oil Corporation Limited]]
| revenue = ((Increase))((INRConvert|60474|c)) (2022)<ref name="Financials">((cite web|url=https://www.moneycontrol.com/india/stockpricequote/refineries/chennaipetroleumcorporation/CPC02|title=Chennai Petroleum Corporation Ltd. Financial Statements |website=moneycontrol.com))</ref>
| operating_income = ((Increase))((INRConvert|1825|c)) (2022)<ref name="Financials"/>
| net_income = ((Increase))((INRConvert|1336|c)) (2022)<ref name="Financials"/>
| assets = ((Increase))((INRConvert|17595|c)) (2022)<ref name="Financials"/>
| equity = ((Increase))((INRConvert|2986|c)) (2022)<ref name="Financials"/>
| num_employees = 1,684 (2020)<ref name="Financials"/>
| ISIN = ((ISIN|sl=n|pl=y|INE178A01016))
| website = ((URL|www.cpcl.co.in))
))

'''Chennai Petroleum Corporation Limited''' ('''CPCL'''), formerly known as '''Madras Refineries Limited''' ('''MRL'''), is a [[subsidiary]] of [[Indian Oil Corporation Limited]] which is under the ownership of [[Ministry of Petroleum and Natural Gas]] of the [[Government of India]]. It is headquartered in [[Chennai, India]]. It was formed as a [[joint venture]] in 1965 between the Government of India (GOI), [[Amoco]] and [[National Iranian Oil Company]] (NIOC), having a shareholding in the ratio 74%: 13%: 13% respectively. From the grassroots stage CPCL Refinery was set up with an installed capacity of 2.5 million [[tonne]]s per year in a record time of 27 months at a cost of ((INRConvert|430|m)) without any time or cost overrun.<ref>((cite news|title=CPCL – History|url=http://profit.ndtv.com/stock/chennai-petroleum-corporation-ltd_chennpetro/reports|accessdate=1 June 2016|work=[[NDTV Profit]]))</ref>

In 1985, Amoco disinvested in favour of GOI and the [[shareholding]] percentage of GOI and NIOC stood revised at 62% and 15.38% respectively. Later GOI disinvested 16.92% of the paid up capital in favor of [[Unit Trust of India]], [[mutual fund]]s, [[Insurance company|insurance companies]] and [[bank]]s on 19 May 1992, thereby reducing its holding to 67.7%. The public issue of CPCL shares at a premium of ((INR)) 70 (((INR)) 90 to FIIs) in 1994 was oversubscribed to an extent of 27 times and added a large [[shareholder]] base of over 90000. As a part of the restructuring steps taken up by the Government of India, [[Indian Oil Corporation Limited]] (IOCL) acquired equity from GOI in 2000–01. Currently IOC holds 51.88% while NIOC continued its holding at [[wax]] and [[petrochemical]] feedstocks production facilities.

CPCL has two refineries with a combined refining capacity of 11.5 million tonnes per year. The [[Manali Refinery]] in [[Chennai]] has a capacity of 10.5 million tonnes per year and is one of the most complex refineries in India with fuel, lube, wax and petrochemical feedstocks production facilities. CPCL's second refinery is [[Nagapattnam Refinery]] located at [[Cauvery]] basin at [[Nagapattinam]] in [[Panagudi]]. This unit was set up in Nagapattinam with a capacity of 0.5 million tonnes per year in 1993 and later enhanced to 1.0 million tonnes per year.<ref>((cite web |url=https://www.cpcl.co.in/business_refineries.htm |title=Business Refineries |website=CPCL |accessdate=17 March 2017 |archive-url=https://web.archive.org/web/20170106215607/https://www.cpcl.co.in/business_refineries.htm |archive-date=6 January 2017 |url-status=dead ))</ref> Now this 1.0 million tonnes per year refinery is being dismantled to increase its capacity to 9.0 million tonne per year with cost of ((INRConvert|27000|c)) this new project will be completed by 2022 and will boost the company growth further. The main products of the company are [[Liquefied petroleum gas|LPG]], Motor Spirit, superior [[kerosene]], [[aviation turbine fuel]], high speed [[diesel fuel|diesel]], [[naphtha]], [[bitumen]], [[Lubricant|lube]] base stocks, [[paraffin wax]], [[fuel oil]], [[hexane]] and [[petrochemical]] feed stocks. The wax plant at CPCL has an installed capacity of 30,000 tonnes per annum, which is designed to produce paraffin wax for manufacture of candle wax, waterproof formulations and match wax. A propylene plant with a capacity of 17,000 tonnes per annum was commissioned in 1988 to supply petrochemical feedstock to neighbouring downstream industries. The unit was revamped to enhance the propylene production capacity to 30,000 tonnes per annum in 2004. CPCL also supplies LABFS to a downstream unit for the manufacture of liner alkyl benzene.

CPCL plays the role of a mother industry supplying feedstocks to the neighbouring industries in Manali. CPCL's products are marketed through IOCL. CPCL's products are mostly consumed domestically except naphtha, fuel oil and lubes which are partly exported.

CPCL has also made pioneering efforts in the field of energy and water conservation by setting up a wind farm and sewage reclamation and sea water desalination plants.

For the entire financial year 2021-22 (FY22), CPCL consolidated net profit was Rs 1,352 crore. Total Revenue for FY 2021-22 was Rs 60,074 crore.

CPCL's equity shares are listed on the [[Bombay Stock Exchange]] and [[National Stock Exchange of India]].

The production line has been affected multiple times due to nature's adversities in form of drought and excessive rains.<ref>((cite news|title=Chennai floods: Chennai Petroleum plunges 5% as company shut its refinery|url=http://www.dnaindia.com/money/report-chennai-floods-chennai-petroleum-plunges-5-as-company-shut-its-refinery-2151602|work=[[Daily News and Analysis]]|date=3 December 2015))</ref><ref>((cite news|title=CPCL resumes rest of the operations at Manali Refinery|url=http://www.business-standard.com/article/companies/cpcl-resumes-rest-of-the-operations-at-manali-refinery-115122400676_1.html|work=[[Business Standard]]|date=24 December 2015))</ref>

It is categorized as a [[Public sector undertakings in India#Management|Miniratna]]-I company by the government.<ref>((cite book|last1=compiled|last2=O'Brien|first2=edited by Derek|title=The Penguin-CNBC-TV18 business yearbook, 2009|date=2009|publisher=Published by Penguin Books India in association with CNBC-TV18 Network|location=New Delhi, India|isbn=978-0143065708|page=353))</ref>

==Controversies==
It has been reported by affected people & environmentalists & that CPCL is releasing Hydrogen Sulphide gas, potent neurotoxins that can damage children’s brain. <ref>((Citation |title=Gas Leak: வடசென்னையில் CPCL தொழிற்சாலையில் இருந்து நச்சு வாயு வெளியேறுகிறதா? BBC Ground Report |url=https://www.youtube.com/watch?v=RVjLCnctOxk |language=tamil |access-date=2022-08-30))</ref> directly into atmosphere. While CPCL denied it, TNPCB Technical committee report on Manali gas leak confirmed CPCL as the source & recommended CPCL to carry out several capacity building measures including reducing use of bad quality high sulphur crude oil,  among other steps.<ref>((Citation |title=Technical committee report on Manali LPG odour confirms CPCL as source |date=9 August 2022 |url=https://www.newindianexpress.com/cities/chennai/2022/aug/07/technical-committee-report-on-manali-lpg-odour-hints-at-cpcl-being-source-2484857.html |language=en ))</ref>

After Dec 4th 2023 cheenai floods, CPCL Manali LPG had oil leaks but cleanup didnt start till 7th Dec. As golden period was missed, spill extended to 20 sq. km. impacting more people, property, animals & river. NGT was forced to issue 3-day ultimantum to cleanup & file report on 18th Dec. <ref>((Citation |title=NGT 3-Day ultimantum to CPCL & TNPCB to cleanup Ennore oil spill as delay leads to 20 sq km spread |newspaper=The Times of India |date=15 December 2023 |url=https://timesofindia.indiatimes.com/city/chennai/chennai-ngt-gives-3-day-ultimatum-to-remove-oil-spill/articleshow/106006076.cms |language=en |access-date=2023-12-15))</ref>

==Product==

*[[List of public sector undertakings in India]]

==References==
((Reflist))

==External links==
* [http://www.cpcl.co.in/ Chennai Petroleum Corporation Limited website] ((Webarchive|url=https://web.archive.org/web/20111007033000/http://www.cpcl.co.in/ |date=7 October 2011 ))

((Public Sector Undertakings in India))
((Energy Ministries and Departments of India))
((Energy companies and organisations in India))

((Authority control))

[[Category:Government-owned companies of India]]
[[Category:Companies based in Chennai]]
[[Category:Oil and gas companies of India]]
[[Category:India–Iran relations]]
[[Category:National oil and gas companies|India]]
[[Category:1985 establishments in Tamil Nadu]]
[[Category:Companies listed on the National Stock Exchange of India]]
[[Category:Companies listed on the Bombay Stock Exchange]]

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