UK Stocks-Factors to watch on Dec. 1

Dec 1 (Reuters) - Britain's FTSE 100 index is seen opening 1 point higher on Thursday, according to financial bookmakers. * The UK blue chip index closed up 0.2 percent on Wednesday at 6,783.79, led by rebounding energy stocks after oil prices surged to their biggest one-day gain in nine months when major producers agreed to output cuts to curb oversupply. * FTSE RESHUFFLE: Precious metals mining company Polymetal International Plc and Travis Perkins Plc, Britain's biggest supplie