BUZZ-The UK stocks exposed to a weaker euro

** Big swing in euro exchange rate puts spotlight on UK companies with significant customer bases in the eurozone

** EURGBP approaching 0.70, fall of 9.2 pct YTD has already outstripped 6.6 pct fall in 2014

** Several FTSE 100 stocks derive more than 50 pct revenues in euros

** Imperial Tobacco (LSE: IMT.L - news) highest EUR exposure in the index at c. 71 pct

** Majority of debt denominated in euros and benefits from stronger macro background in the eurozone, but profits hurt by a stronger euro

** Said in its FY2014 results a 10 pct depreciation in the euro would hit income by £307 mln, knocking £1.1 bln off co's share price. Chart: http://link.reuters.com/qan34w

** Stock down 6 pct in last three trading days but still up 10 pct YTD

** Other stocks with majority of revenues from eurozone: 3i (c. 67 pct continental Europe), Vodafone (56 pct), Easyjet (52 pct)

** Travel and real estate cos also among most exposed to eurozone on FTSE 250 and Small Cap indices

** Thomas Cook (Xetra: A0MR3W - news) , Flybe, Hansteen among others that derive majority of revenues from the eurozone (RM (LSE: RM.L - news) : alasdair.pal.thomsonreuters.com@reuters.net)