Oil companies extend gains By: MarketMinute.com Stock News December 01, 2016 at 21:16 PM EST Oil companies continued to climb with shares of Stone Energy Corp. (NYSE: SGY) soaring $1.37 to close at $6.29 and W&T Offshore Inc. (NYSE: WTI) climbing 41 cents to close at $2.10. Related Stocks: WT Offshore