Analyst Upgrades

• Cisco (CSCO) to outperform from perform at Oppenheimer.
• Cognizant (CTSH) to buy from neutral at Goldman.
• Polypore (PPO) to outperform from neutral at RW Baird.
• Elan (ELN) to buy from neutral at UBS.
• Millicom (MICC) and NuStar GP Holdings (NSH) to overweight from equal weight at Morgan Stanley.
• Teekay LNG (TGP) to equal weight from underweight at Morgan Stanley.
• American Railcar (ARII) to outperform from market perform at Morgan Keegan.
• Texas Instruments (TXN) to buy from neutral at Sterne Agee.

Analyst Upgrades

• Piper Jaffray upgraded Salesforce.com (CRM) to overweight from neutral, citing valuation following the recent sell-off and strong business trends. The firm has a $115 price target for shares.
• Keefe Bruyette upgraded M&T Bank (MTB) to market perform from underperform on valuation after AIB sold its stake in the company. The firm has a $72 price target for shares.
• Jefferies upgraded OGE Energy (OGE) to buy from hold following the announcement that ArcLight will purchase 9.9% of OGE's interest in Enogex for $183M and believes this deal highlights the hidden value associated with Enogex. The firm raised its price target to $51.50 from $43.
• Thomas & Betts (TNB) was upgraded to outperform from perform at Oppenheimer.
• Bayer (BAYRY) was upgraded to buy from neutral at UBS.
• Texas Roadhouse (TXRH) was upgraded to outperform from neutral at Baird.

Analyst Upgrades

• Wunderlich upgraded Inergy (NRGY) to buy from hold on valuation after the stock sold off following the proposed merger with Inergy Holdings (NRGP). The firm raised its target for shares to $46 from $40.
• Soleil upgraded Applied Industrial (AIT) to buy from gradually accumulate following the company's better-than-expected Q4 results and raised its target for shares to $42 from $36.
• Citigroup upgraded Starwood Property (STWD) to buy from hold with a $21 price target, citing a pick-up in CRE loan sales.
• Family Dollar (FDO) was upgraded to overweight from equal weight at Barclays.
• Intercontinental Hotels (IHG) was upgraded to buy from sell at Societe Generale.
• Yucheng Technologies (YTEC) was upgraded to buy from hold at Roth Capital.

• Oppenheimer upgraded Savient Pharmaceuticals (NASDAQ: SVNT) to Perform from Underperform after the FDA's Arthritis Advisory Committee voted 14-1 in favor of approving Krystexxa for gout.
• Banc of America/Merrill upgraded Texas Instruments (NYSE: TXN) to Buy from Underperform and raised its target to $27 from $18 based on expectations that margin expansion will be higher than Street expectations.
• UBS said Nvidia (NASDAQ: NVDA) has limited downside risk given the improved outlook for the graphics processor market and professional solutions business. Shares were upgraded to Neutral from Sell and its target was raised to $11.50 from $8.
• BHP Billiton (NYSE: BHP) was upgraded to Outperform from Neutral at Macquarie.
• Neutral Tandem (NASDAQ: TNDM) was upgraded to Outperform from Neutral at Baird.
• Central Garden & Pet (NASDAQ: CENT) was upgraded to Buy from Neutral at SunTrust.

Oklahoma turns 100 years old this year, and I wrote a bit about its business climate in my recent Investing in Oklahoma post. That post featured some growth companies based in Oklahoma: Arena Resources Inc. (NYSE: ARD), Helmerich & Payne Inc. (NYSE: HP), Unit Corp. (NYSE: UNT), Chesapeake Energy Corp. (NYSE: CHK), ONEOK Inc. (NYSE: OKE), Devon Energy Corp. (NYSE: DVN), and the Williams Companies (NYSE: WMB).

Earlier this year, the Motley Fool also took at look at Oklahoma companies, and focused on some of the same energy sector companies that I did. Its search also included two non-energy companies as well: drive-in burger chain Sonic Corp. (NASDAQ: SONC) for its growth potential, and Tulsa-based Dollar Thrifty Automotive (NYSE: DTG).

Sonic recently announced 21 consecutive years of positive same-store sales performance, and reaffirmed its 33 cents earnings per share earnings expectations for the fourth quarter. For fiscal 2008, Sonic expects earnings growth of 15% to 17%. The consensus of analysts surveyed by Thomson Financial is that Sonic is a buy. The share price was $23.40 at the close on Friday, up from a 52-week low of $20.02 in late July, not yet quite back to its 52-week high of $25.09 in May, but still up from its stumble at the end of August after an analyst's downgrade based on labor and dairy costs. That was before the announcement and reaffirmed expectations mentioned above. Also, Sonic made the Forbes list of 100 best mid cap stocks in America.