UK Stocks-Factors to watch on Jan 31

Jan 31 (Reuters) - Britain's FTSE 100 index is seen opening 4 points lower at 7,584.3 on Wednesday, according to financial bookmakers. * BP: BP has made two new oil and gas discoveries in the UK North Sea, it said on Wednesday, giving new impetus to its plans to boost production in the ageing basin into the middle of the century. * RBS/FCA: Britain's financial watchdog said on Tuesday it will publish in full a report it commissioned on how Royal Bank of Scotland treated small b