Sensex opened in negative and then slipped 84.29 points at the session's low of 15,706.22, hit at the onset of trading session. Later, it gained 71.85 points at day's high of 15,862.36 in early trade. While, the border-based CNX S&P Nifty index of National Stocks Exchange was up by 20.95 points at 4,768.
The key indices opened lower following a decline in US market and mixed Asian markets. But strong demand for oil&gas stock pulled the indices in positive territory shortly. IT and banking stocks declined. The market breadth was strong, brokers said.
Index heavyweights, Reliance Industries rose by 0.60 per cent at Rs 2432.50, while ICICI Bank was down by 1.55 per cent at Rs 823.50 and Larsen&Toubro was marginally up at Rs 2642.
Hindalco Industries was up 2.66 per cent at Rs 177.25, Maruti Suzuki up by 1.83 per cent at Rs 747.75, Reliance Energy up by 1.96 per cent at Rs 1200, Mahindra&Mahindra up 1.34 per cent at Rs 616.05 and NTPC gained at Rs 189.50, were in demand.
However, Infosys Technologies declined 1.28 per cent at Rs 1461, Satyam Computer slipped 1.26 per cent at Rs 422.10, HDFC Bank was down 0.66 per cent at Rs 1366.95 and Tata Steel was marginally down at Rs 677.