This post is one in a series in which more than 60 newsletter advisors share their Top Stock Picks for 2011. This special report is courtesy of TheStockAdvisors.com.

"Even among great companies, one year's leader is often the next's laggard and vice versa; MDU Resources (MDU) is one under-performer that looks increasingly likely to get it's legs back in 2011," says utility stock specialist Roger Conrad.

The editor of The Utility Forecaster explains, "The company is best thought of as a financially conservative resource company, whose cash flows are anchored by solid regulated energy assets.

"Economic trends, political winds and investment fads come and go. But companies that grow cash-generating assets build wealth year in, year out," says utility sector specialist Roger Conrad.

The editor of Utility Forecaster adds, "One such stock is MDU Resources (MDU), which I have selected as my 'growth spotlight' stock.

"Including reinvested dividends, MDU Resources has multiplied investors' money 10-fold since my original recommendation in September 1990.

Analyst upgrades:

• Jefferies upgraded shares of Anadarko Petroleum Corporation (NYSE: APC) to Buy from Hold and raised the target to $79 from $52.50 on valuation and believes the company can use its strong cash flow position to acquire assets.
  
• Baird said The Corporate Executive Board Company's (NASDAQ: EXBD) valuation is discounting a miss and that the company is well positioned as an early-cycle story with a new CFO, continued mid-market traction, and likely better than feared 2009 results. The firm upgraded shares to Outperform from Neutral and raised its target to $38 from $41.
  
• Merrill upgraded Novartis AG (ADR) (NYSE: NVS) to Buy from Neutral and Sanofi-Aventis SA (ADR) (NYSE: SNY) and Shire Plc (ADR) (NASDAQ: SHPGY) to Buy from Underperform on valuation and defensive earnings.
• Marshall & Ilsley Corporation (NYSE: MI) was upgraded to Market Perform from Underperform at Keefe Bruyette.
  
• Barclays Plc (ADR) (NYSE: BCS) was raised to Hold from Sell at Citigroup.
  
• Novellus Systems, Inc. (NASDAQ: NVLS) was upgraded at Soleil to Buy from Hold.