UK Stocks-Factors to watch on Dec 4

Britain's FTSE 100 index is seen opening 12 points lower at 7,050 points on Tuesday, according to financial bookmakers. * OIL: Oil prices rose on Tuesday, extending strong gains from the previous day amid expected OPEC-led supply cuts and a mandated reduction in Canadian output. * GOLD: Gold prices rose on Tuesday, after hitting a more than one-month high earlier in the session, as the dollar stumbled after the United States and China agreed to a temporary truce in