The stock soared 15.27 per cent to Rs 213.25 -- its 52- week high -- at BSE.
On NSE, it jumped 15.32 per cent to touch its one-year peak of Rs 213.70.
Providing certain relaxations, Sebi on Friday gave more time to the promoter of Essar Oil to finalise the delisting offer.
While directing the company to expeditiously make the public announcement about the delisting, the market watchdog said the same price of proposed deal with Russia's Rosneft should be offered to the public shareholders.
Sebi's order, issued on an application seeking certain relaxations filed by Essar Oil's promoter Essar Energy Holdings Ltd, said it should expeditiously make the public announcement about the delisting.