OPaL, promoted by ONGC and co-promoted by Gujarat State Petroleum Corp (GSPC) and gas company GAIL (India) Ltd, operates a cracker which has a capacity of 1.1 million tonnes of ethylene a year.
"We are supplying all of the naphtha to OPaL...we will export if our laycans do not match with that of OPaL's," said a company source, adding that OPal is working out its strategy to source some quantity from the market as well.
A cracker of this size typically consumes more than 3 million tonnes of naphtha a year, based on Reuters calculation, but OPaL cracker is able to run on gas and naphtha.
"OPal did not run full until recently," said a second source, explaining why ONGC only stopped halting exports this year.
ONGC Hazira was exporting one to two 34,500-tonne cargoes a month in 2016 but this stopped this year, based on Reuters data.
ONGC was also exporting an average 35,000 tonnes of naphtha a month from Mumbai in 2016. It last sold a cargo for January 2017 loading.
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