Quicksilver Resources ( KWK) upgraded at Citigroup from Hold to Buy. $66 price target. High reserve replacement ratio could drive earnings and the stock price. MAP Pharma initiated at Morgan Stanley with an overweight rating and $20 price target. Oracle ( ORCL) upgraded at CIBC from Sector Perform to Outperform. Company should still be able to deliver double-digit earnings growth, despite slower near-term growth in the US. Omnivision Technologies ( OVTI) upgraded at CIBC to Sector Outperform. $25 price target. Channel checks suggest that sales are building in momentum and visibility. Qwest Communications ( Q) upgraded at Citigroup from Sell to Hold. $7 price target. Risk-reward scenarios are more balanced at current levels. Target ( TGT - Get Report) downgraded at Merrill to Neutral. Chances of a credit sale are now less than 50%, and retail margins could remain under pressure through the first half of 2008.