If proved correct, MJ-1 would the third biggest gas field in KG-D6 after D1&D3.
Gas production from Krishna Godavari basin block has dropped to just over 12 mmscmd and RIL is carrying out workover on main Dhirubhai-1 and 3 gas fields.
The government had allowed companies in February last year to launch probe missions to find more oil and gas within already-producing areas.
The 30-share Sensex ended up 165 points at 29,044 and the 50-share Nifty gained 54 points to close at 8,834.
The 30-share Sensex ended higher by 177.46 points at 28,885.21 and the Nifty gained 63.90 points at 8,778.30.
Energy conglomerate Reliance Industries and its partner BP plc on Friday said they have made a second deep-water gas condensate discovery in the Cauvery basin, off the east coast.