Earlier momentum deflated by the end of the day, though Wall Street did manage to close with slight gains. Crude oil supported stocks thanks to a surprise rally driven by speculation Iran may participate in a production freeze. Tesla (TSLA) - Get Tesla Inc Report gave back most of the day's gains after announcing new versions of its Model S and Model X vehicles, including new batteries for faster performance. Expectations had been high after CEO Elon Musk made mention of an announcement earlier in the day. Tableau Software (DATA) - Get Tableau Software, Inc. Class A Report soared after the company appointed Adam Selipsky as CEO. Selipsky was previously VP of sales and marketing for Amazon's Web Services. CF Industries (CF) - Get CF Industries Holdings, Inc. Report rose after UBS increased its rating to BUY on the expectation that it will return to positive free cash flow next year. Its price target was also increased.