``We have to keep an eye on those companies which are using a lot of materials as their input costs,'' said Lucy Macdonald, chief investment officer of global equities at RCM Ltd. in London, which oversees $49 billion. ``Those are the ones we have to watch, the oil users. We are not invested in airlines.'' Xstrata Plc, the world's No. 1 thermal coal exporter, rose after saying it bought a stake in Falconbridge Ltd. London Stock Exchange Plc advanced after Macquarie Bank Ltd. of Australia said it's considering bidding for the operator. The Dow Jones Stoxx 600 Index lost less than 0.1 percent to 288.08 as of 8:04 a.m. in London. The Stoxx 50 and the Euro Stoxx 50, an index for the 12 countries using the euro, declined less than 0.1 percent. Markets in Greece, Italy, Luxembourg and Austria are closed for a holiday. Crude oil for September delivery climbed as high as $67.10 on the New York Mercantile Exchange on Aug. 12 after the close of trading in Europe, to finish at a record $66.86 a barrel, or 47 percent higher than a year ago. Oil last traded at $66.31. BMW, the world's largest maker of luxury cars, declined 0.3 percent to 36.63 euros. Xstrata agreed to buy 19.9 percent of Canada's Falconbridge from Brascan Corp. for C$2.05 billion ($1.7 billion) to expand in industrial metals such as copper and zinc. Xstrata shares rose 2.1 percent to 1,300 pence. Macquarie Bank, Australia's biggest investment bank, said it may bid for London Stock Exchange, Europe's largest exchange by value of companies listed, after regulators cleared the way for a takeover contest. LSE rose 3.3 percent to 570 pence. Separately, the Sunday Times reported yesterday that OMX AB, operator of the Swedish Stock Exchange, is also considering a bid. The newspaper report didn't cite anyone. PIN/Bloomberg