US STOCKS-Wall St lower as oil slips, earnings in focus
* Crude down more than 2 pct
* Citigroup up after results
* S&P financial sector up 4 pct for week
* Indexes down: Dow 0.03 pct, S&P 0.09 pct, Nasdaq 0.20 pct (Updates to open)
By Abhiram Nandakumar
April 15 (Reuters) - U.S. stocks were flat on Friday on worries that a potential deal by major oil producers to freeze output would do little to tackle a stubborn global oversupply.
Crude was down more than 2 percent ahead of Sunday's meeting in Doha, led by top exporters Saudi Arabia and Russia.
The nervousness about the outcome of the meeting overshadowed positive Chinese data, which showed the country's gross domestic product grew 6.7 percent in the first quarter in another sign that Asia's largest economy was on the mend.
Citigroup reported a fall in quarterly profit, which still topped analysts' estimates. The stock was up 2.5 percent at $46.12 and gave the biggest boost to S&P 500. Continuación...