Shares of Gujarat Gas Company continued their upward journey, hitting a new high of Rs 674.80 after they advanced 6 per cent on the BSE in intra-day trade on Thursday. In the past four weeks, the stock of the integrated oil and gas firm has rallied 32 per cent after the company reported a strong set of numbers for the quarter ended March (Q4FY21). In comparison, the S&P BSE Sensex is up 5.6 per cent during the same period.