All 40 energy stocks in the S&P 500 SPX, +1.90% were trading higher Thursday as the stock market extended gains following an upward revision of the U.S. gross domestic product growth and a rebound in the benchmark Chinese stock index. Arally in crude oil prices CLV5, +7.38% also helped to buoy the energy sector. Newfield Exploration Co. NFX, +10.94% jumped 11% while Consol Energy Inc.CNX, +11.66% added 8.5%, and Chesapeake Energy Corp. CHK, +9.46% rose 8.8%.