LONDON, Oct 31 (Reuters) - European stocks dipped on Wednesday, led by heavyweight British oil and gas firm BG Group after it warned it would show no production growth next year.

The FTSEurofirst 300 provisionally closed down 0.5 percent at 1,097.54, reflecting weakness on Wall Street, which reopened after a two-day stoppage after super storm Sandy caused widespread damage to the U.S. eastern coast.