"HPCL Board at its meeting today decided to participating in the 60 million tons a year refinery in Maharashtra. We intent to putting in 25 per cent equity," he told reporters here.
Indian Oil Corp (IOC) will hold 50 per cent stake in India's biggest oil refinery, while the balance 25 per cent will be with Bharat Petroleum Corp Ltd (BPCL).
"We are open to getting a strategic partner but that will be decided later. For now, we have decided to participate in the project with 25 per cent stake," Surana said.
Phase-1 will be 40 million tons together with an aromatic complex, naphtha cracker and polymer complex. This will cost Rs 1.2-1.5 lakh crore and will come up in 5-6 years from the date of land acquisition.
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The mega complex will require 12,000-15,000 acres of land and two-three sites on coast of Maharashtra are being explored. "We have so far not finalised the land. Talks are on," said the HPCL chairman.
The second phase, involving a 20 million tons refinery, will cost Rs 50,000-60,000 crore.
HPCL and BPCL too have been looking at a bigger refinery because of constraints they face at their Mumbai units.
The mega west coast refinery will produce petrol, diesel, LPG, ATF and feedstock for petrochemical plants in plastic, chemical and textile industries in Maharashtra.
Fifteen million tonnes a year is the biggest refinery any public sector unit has set up in one stage. IOC recently started its 15 million tonnes unit at Paradip in Odisha.
The refinery being planned by the state-owned firms will be bigger than that. The phase-1 itself will be bigger than any one single unit.
India has a refining capacity of 232.066 million tonnes, which exceeded the demand of 183.5 million tons in 2015-16 fiscal.
According to International Energy Agency (EA), this demand is expected to reach 458 million tons by 2040.
"Viability gap funding will definitely be required. Whether it is in form of tax concessions or grant, those are things being discussed," he said.