Energy Stocks: Winners and Losers

NEW YORK (TheStreet) - Aventine Renewable Energy Holdings (AVRW), Magellan Midstream Partners (MMP) and Sunoco Logistics Partners (SXP) showed strength this past week, while LDK Solar (LDK), Cobalt International Energy (CIE), Key Energy Services (KEG) and Suntech Power Holdings (STP) eroded substantial value.

Aventine Renewable Energy Holdings led the pack of winners last week, up 5.0%.

Magellan Midstream Partners and Sunoco Logistics Partners rose 2.4% and 1.4%, respectively.

NuStar GP Holdings ( NSH) improved 1%.

ONEOK Partners ( OKS), Bristow Group ( BRS) and Kinder Morgan Management ( KMR) appreciated less than 1% last week.

LDK Solar was the top decliner, plunging 32%.

Suntech Power Holdings pared 28.2%. Mizuho has downgraded the stock to underperform from neutral.

Cobalt International Energy shed 26.8% for the week.

Key Energy Services lost 26.3%. Global Hunter Securities has downgraded the stock to accumulate from buy with a 12-month target price of $14 per share.

Complete Production Services ( CPX) pared 26% loss. The stock was downgraded to accumulate from buy at Global Hunter Securities with a 12-month target price of $28 per share.

CARBO Ceramics Inc. ( CRR) and Forest Oil Corp. ( FST) relinquished 24.3% and 22.9%, respectively.

Nabors Industries ( NBR) wiped out 22.6%. Global Hunter Securities has downgraded the stock to accumulate from buy with a 12-month target price of $22 per share.

Other stocks on the losing end included Exterran Holdings ( EXH), down 22.5%, Plains Exploration & Production ( PXP), down 22%, Whiting Petroleum ( WLL) down 21.8%, Swift Energy ( SFY), down 21.5%, Precision Drilling ( PDS), down 21.4%, Weatherford International ( WFT) down 21.1%, Renesola ( SOL) down 20.9%, Oil States International ( OIS) down 20.7% and SM Energy ( SM) down 20.7%.

Patterson-UTI Energy ( PTEN) erased 20.6%. Global Hunter Securities has downgraded the stock to accumulate from buy with a 12-month target price of $28 per share.

Halliburton ( HAL) and Tesoro Corp. ( TSO) retreated 20.6% and 20.2% lower, respectively.

RPC Inc. ( RES) lost 20.2%. The stock was downgraded to neutral from accumulate at Global Hunter Securities with a 12-month target price of $26 per share.

Helix Energy Solutions Group ( HLX) declined 20.1%.

Trina Solar ( TSL) shed 20.2%. The stock was downgraded to neutral from buy at Mizuho.

On average, Superior Energy Services ( SPN), Unit Corp. ( UNT), SunPower ( SPWRA) and ( SPWRB), McMoRan Exploration ( MMR), Berry Petroleum ( BRY) and Oasis Petroleum ( OAS) closed 19% lower last week.

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