ONGC Petro additions Limited (OPaL), a multi billion joint venture company was incorporated in 2006, as a Public Limited Company under the companies Act, 1956, promoted by Oil and Natural Gas Corporation (ONGC) and co-promoted by GAIL and GSPC.

OPaL has set up a grass root mega Petrochemical complex at Dahej, Gujarat in PCPIR/SEZ (Petroleum, Chemicals and Petrochemicals Investment Region/Special Economic Zone). The complex's main Dual Feed Cracker Unit has the capacity to produce 1100 KTPA Ethylene, 400 KTPA Propylene and the Associated Units consists of Pyrolysis Gasoline Hydrogenation Unit, Butadiene Extraction Unit and Benzene Extraction Unit. The Polymer plants of OPaL has 2X360 KTPA of LLDPE/HDPE Swing unit, 1X340 KTPA of Dedicated HDPE and 1x340 KTPA of PP. The Project commenced its production after the inauguration by Hon'ble Prime Minister Shri Narendra Modi in March 2017.

OPaL is poised to become a key player in the growth of the polymer industry, because it has all the essential ingredients to become one of the best performing operators in the global petrochemical industry. Moreover, to utilize the advantage of this highly competitive and dynamic market, OPaL synergizes with the strengths of its promoters. OPaL has the combine advantages of adequate indigenous feedstock supplies, talented manpower, ready market and above all, a better and brighter domestic market.