Randgold (RRS) (ABG) (AZK) (DUK) (HERO) (TEG) (PCL) Ratings

Randgold Resources Ltd (RRS), African Barrick Gold (ABG), Aurizon Mines Ltd. (AZK), Duke Energy Co. (DUK), Hercules Offshore, Inc. (HERO), Integrys Energy Group, Inc. (TEG), Plum Creek Timber Co. (PCL) ratings adjusted or initiated on by analysts.  
 
TheStreet upgraded Aurizon Mines Ltd.(USA) (AZK) to a "Buy" rating.  

Argus upgraded Duke Energy Co. (DUK) from a "Hold" rating to a "Buy" rating. They placed a price target of $72.00 on the company.

Tudor Pickering upgraded Hercules Offshore, Inc. (HERO) from a "Hold" rating to an "Accumulate" rating.
 
DA Davidson upgraded Integrys Energy Group, Inc. (TEG) from a "Neutral" rating to a "Buy" rating. They a price target of $59.00 on the company.

DA Davidson downgraded Plum Creek Timber Co. (PCL) from a "Buy" rating to a "Neutral" rating. They a price target of $45.00 on the company.

Liberum Capital Ltd initiated coverage on African Barrick Gold (ABG). It placed a "Hold" rating on the company.

Liberum Capital Ltd initiated coverage on Randgold Resources Ltd (RRS). It placed a "Hold" rating on the company.

CF (CF) (HFC) (PCL) (PFC) (CNX) Ratings Changes

CF Industries Holdings Inc (CF), HollyFrontier Corp (HFC), Plum Creek Timber Co. (PCL), Petrofac Ltd (PFC) and CONSOL Energy Inc. (CNX) had ratings on them changed or initiated by analysts.

JPMorgan Chase (JPM) upgraded CF Industries Holdings Inc (CF) from a "Neutral" rating to an "Overweight" rating. They have a price target of $253.00 on the company.

Wells Fargo & Co. (WFC) upgraded HollyFrontier Corp (HFC) from a "Market Perform" rating to an "Outperform" rating.

Bank of America (BAC) upgraded Plum Creek Timber Co. (PCL) from an "Underperform" rating to a "Neutral" rating. They have a price target of $47.00 on the company.

Investec upgraded Petrofac Ltd (PFC) to a "Buy" rating. They have a price target of $32.26 on the company.

Global Hunter Securities initiated coverage on CONSOL Energy Inc. (CNX). They have a "Neutral" rating and a price target of $35.00 on the company.

Plum Creek Timber (NYSE:PCL) Getting Coverage from Keefe, Bruyette & Woods

Keefe, Bruyette & Woods announced they have initiated coverage on the real estate investment trust (REIT) Plum Creek Timber (NYSE:PCL).

They began their coverage with a "Market Perform" rating and a price target of $38.

"Trading at roughly 13.8x 2011 EBITDA and an implied per-acre value of $1,060, we view current valuation as compelling. However, given an operational dependency on residential construction, we see limited opportunity for positive catalysts to drive significant valuation expansion over the next 12 months," said KBW.

Plum Creek, which closed at $35.64 Thursday, owns and manages timberlands in the U.S.