PARIS, Jan 31 (Reuters) - U.S. stock index futures pointed to a mixed open on Wall Street on Thursday, with futures for the S&P 500 down 0.04 percent, Dow Jones futures up 0.04 percent and Nasdaq 100 futures down 0.31 percent at 1033 GMT.
* Facebook Inc will be in the spotlight after it doubled its mobile advertising revenue in the fourth quarter, a sign that the No.1 social network is seeing early success in expanding onto handheld devices as more of its users migrate to smartphones and tablets.
* Investors await a flurry of earnings from big companies including Colgate-Palmolive, The Dow Chemical Company
, MasterCard Inc, Time Warner Cable Inc.
, United Parcel Service, Inc., Viacom Inc.
and Whirlpool Corp..
* On the macro front, weekly jobless claims are due at 1330 GMT and Chicago PMI at 1445 GMT. European shares fell in morning trade after a mixed bag of earnings reports.
* Electronic Arts Inc slashed its fiscal 2013 earnings forecast after a weaker-than-expected holiday quarter marked by disappointing sales of its "Medal of Honor" title, as the industry struggles with flagging demand.
* ConocoPhillips reported a drop in quarterly profit as oil and gas prices weakened and output from the third-largest U.S. oil and gas producer remained steady compared with a year before, though it anticipated a likely decline in the first quarter.
* Citigroup Inc is looking to pull out of consumer banking in more countries in an effort to lower costs and boost profits, according to two people familiar with the matter.
* All Nippon Airways Co, the launch airline for Boeing Co's 787 Dreamliner jet that has been grounded with undiagnosed battery problems, said it lost more than $15 million in revenue from having to cancel Dreamliner flights this month.
* Skyworks Solutions Inc, a supplier to Apple Inc , forecast better-than-expected revenue for the traditionally slow second quarter, pushing its shares up almost 15 percent in extended trade.
* Casino operator Las Vegas Sands Corp, owned by billionaire Sheldon Adelson, on Wednesday posted lower-than- expected fourth-quarter earnings as weak results in Las Vegas dampened a strong performance in Asia.
* Qualcomm Inc, the world's leading supplier of chips for cellphones, reported quarterly earnings and revenue that beat Wall Street expectations and raised its financial targets for 2013 due to growing demand for smartphones and high-speed wireless services.
* U.S. stocks fell on Wednesday after the Federal Reserve said in its latest statement that economic growth had stalled but indicated the pullback was likely temporary.
* The Dow Jones industrial average was down 44.00 points, or 0.32 percent, at 13,910.42. The Standard & Poor's 500 Index was down 5.88 points, or 0.39 percent, at 1,501.96. The Nasdaq Composite Index was down 11.35 points, or 0.36 percent, at 3,142.31.